Pest Management Techniques Research Articles

Indigenous Technical Knowledge Practices for Managing Pests and Diseases in Agricultural Crops

Aims: This study aims to document indigenous technical knowledge (ITK) practices used by farmers in the Tirunelveli district for managing pests and diseases in agricultural crops. It focuses on understanding traditional methods and their relevance in sustainable pest and disease control. Study Design: This is a descriptive field study employing a mixed-method approach, combining a literature review and qualitative data collection from farmers. Place and Duration of Study: The study took place in Tirunelveli district of Tamil Nadu, India. The research was conducted over three months from January to March. Methodology: The research was conducted in three phases 1) Literature Review: Existing studies on indigenous pest and disease management techniques in the region were reviewed. 2) Data Collection: Interviews and focus group discussions were held with farmers to gather traditional knowledge on pest and disease control practices. 3) Data Analysis: The collected information was analysed for common practices and evaluated for effectiveness. Results: The study uncovered numerous indigenous techniques, including the use of neem leaves, cow urine, and plant-based remedies for pest control. Out of 150 farmers interviewed, 80% used traditional methods, with 60% reporting success in reducing crop damage. These practices were found to be cost-effective and eco-friendly, reducing dependence on chemical pesticides. Conclusion: The research highlights the potential of ITK in sustainable agriculture particularly for pest and disease management. It underscores the importance of preserving and promoting these traditional methods as viable alternatives to modern chemical practices.

Major Insect Pests of Sweet Potatoes in Brazil and the United States, with Information on Crop Production and Regulatory Pest Management.

The sweet potato [Ipomoea batatas (L.) Lam] is considered one of the most important crops in the world as food, fodder, and raw material for starch and alcohol production. Sweet potato consumption and demand for its value-added products have increased significantly over the past two decades, leading to new cultivars, expansion in acreage, and increased demand in the United States and its export markets. Due to its health benefits, sweet potato production has multiplied over the past decade in Brazil, promoting food security and economic development in rural areas. Their adaptability and nutritional value make them a food of great importance for Brazil. As pest attacks and disease infection are the main limiting aspects that often cause yield loss and quality degradation in sweet potatoes, there is a great demand to develop effective defense strategies to maintain productivity. There is a critical need for research into non-pesticide control approaches that can provide safe, cost-effective, sustainable, and environmentally friendly pest and disease management techniques. Pests which feed on roots have trade implications worldwide. For example, sweet potato tuber shipments infested with the sweet potato weevil are generally not allowed for trade in North and South America.

Applications of Plant Essential Oils in Pest Control and Their Encapsulation for Controlled Release: A Review

Essential oils (EOs) are volatile products derived from the secondary metabolism of plants with antioxidant, antimicrobial, and pesticidal properties. They have traditionally been used in medicine, cosmetics, and food additives. In agriculture, EOs stand out as natural alternatives for pest control, as they show biocidal, repellent, and antifeedant effects. However, they are highly volatile compounds and susceptible to oxidation, which has limited their use as pesticides. This has led to exploring micro- and nano-scale encapsulation to protect these compounds, improving their stability and allowing for a controlled release. Various encapsulation techniques exist, such as emulsification, ionic gelation, and complex coacervation. Nanoemulsions are useful in the food industry, while ionic gelation and complex coacervation offer high encapsulation efficiency. Materials such as chitosan, gelatin-gum-Arabic, and cyclodextrins are promising for agricultural applications, providing stability and the controlled release of EOs. Encapsulation technology is still under development but offers sustainable alternatives to conventional agrochemicals. This article reviews the potential of EOs in pest management and encapsulation techniques that enhance their efficacy.

An effective farmer-centred mobile intelligence solution using lightweight deep learning for integrated wheat pest management

Integrated Pest Management (IPM) techniques have been widely used in agriculture to manage pest damage in the most economical way and to minimise harm to people, property and the environment. However, current research and products on the market cannot consolidate this process. Most existing solutions either require experts to visually identify pests or cannot automatically assess pest levels and make decisions based on detection results. To make the process from pest identification to pest management decision making more automated and intelligent, we propose an end-to-end integrated pest management solution that uses deep learning for semi-automated pest detection and an expert system for pest management decision making. Specifically, a low computational cost sampling point generation algorithm is proposed to enable mobile devices to generate uniformly distributed sampling points in irregularly shaped fields. We build a pest detection model based on YoloX and use Pytorch Mobile to deploy it on mobile phones, allowing users to detect pests offline. We develop a standardised sampling specification and a mobile application to guide users to take photos that allow pest population density to be calculated. A rule-based expert system is established to derive pest management thresholds from prior agricultural knowledge and make decisions based on pest detection results. We also propose a human-in-the-loop algorithm to continuously track and update the validity of the thresholds in the expert system. The mean average precision of the pest detection model is 58.17% for 97 classes, 75.29% for 2 classes, and 57.33% for 11 classes on three pest datasets, respectively. The usability of the pest management system is assessed by the User Experience Surveys and achieves a System Usability Scale (SUS) score of 76. The usability of the proposed solution is validated by qualitative field experiments.

Motivation and opportunity may drive Tunisian farmers to reduce chemical pesticides in horticulture

This study investigates the sociopsychological factors influencing Tunisian farmers’ adoption of sustainable pest management techniques by employing the motivation-opportunity-ability framework and using partial least squares structural equation modelling. It is the first empirical study to test this framework in predicting farmers’ readiness to reduce pesticide usage in agriculture, distinguishing between intrinsic and extrinsic motivations. The findings reveal that both intrinsic and extrinsic motivations significantly impact farmers’ readiness to reduce pesticide use. Particularly, extrinsic motivations, such as peer influence and prevailing practices within the community, play a crucial role, highlighting the importance of social dynamics in sustainable agricultural decisions. Additionally, opportunities to adopt non-chemical pest control methods, enhanced by access to information and technology, positively influence farmers’ intentions to minimize pesticide use. These results suggest that enhancing farmers’ motivation through targeted educational programs and fostering opportunities via supportive policy environments are key strategies to promoting sustainable pest management practices in the region.

Interventions promoting resilience through climate smart agricultural practices for women farmers: A systematic review.

Climate change poses a significant threat to agricultural production worldwide, with developing countries being particularly vulnerable to its negative impacts. Agriculture, which is a crucial factor in ensuring food security and livelihoods, is particularly vulnerable to changes in climate patterns, such as increased temperatures, drought, and extreme weather events. One approach to addressing these challenges is by promoting the adoption of climate-smart agriculture (CSA) practices among farmers. CSA combines traditional agricultural practices with innovative techniques and technologies to adapt to and mitigate the impacts of climate change. infrastructure. By adopting CSA practices, farmers can enhance their resilience to climate variability and improve their productivity. This review examines the effectiveness of interventions promoting CSA to enhance farmers' knowledge of the benefits of CSA approaches, subsequent adoption of CSA, and disadoption of harmful agricultural practices in low- and middle-income countries (LMICs). We searched 39 academic and online databases, websites, and repositories and screened over 19,000 experimental and quasi-experimental publications to identify studies promoting CSA practices to women farmers. We conducted a citation tracking process on included studies and contacted experts to ensure a thorough search. The review focused on studies that included interventions promoting climate-smart agricultural approaches. Using EPPI Reviewer 4, two review authors independently screened the impact evaluation using a standardized screening tool. Information about participant characteristics, intervention characteristics, control conditions, research design, sample size, bias risk, outcomes, and results were gathered. Data collection and quantitative analysis were conducted using standard Campbell Collaboration methods. Eight impact evaluations were found (two randomized controlled trials) evaluating the effects of CSA practices on farmer's knowledge gains of the benefits of CSA practices and subsequent adoption. Knowledge dissemination approaches such as Farmer Field Schools and weather and climate information services were found to positively impact farmers' knowledge and adoption of specific CSA practices. However, the evidence supporting this claim is uncertain as a high risk of bias was assessed for five of the eight included studies. However, we found no effects on the disadoption of harmful practices such as pesticide overuse. The evidence base for studies promoting climate-smart agricultural approaches (CSA) to farmers in LMICs is small, and there is a lack of studies reporting sex-disaggregated data and studies explicitly targeting women farmers. The review suggests that knowledge dissemination techniques are significantly effective in improving CSA knowledge and adoption, including integrated pest management techniques and their benefits, adoption of climate-resilient rice seed varieties (STRVs), and use of botanical pesticides by farmers. More and better confidence studies are needed to inform policy and programming, including those that look at a wider range of interventions, including changing norms, values, and institutional arrangements.

An integrated methods to manage the corn ground beetle (Zabrus tenebrioides Goeze) in wheat field

This study presents a series of experiments on control techniques in the open field trials to monitor and manage the corn ground beetle (Zabrus tenebrioides Goeze) (Coleoptera: Carabidae). The larval stage is particularly harmful, as it feeds on cereal roots and constructs tunnels that damage the wheat crop while residing in the soil. The primary goal of the study was to investigate the effectiveness of various control measures in managing Z. tenebrioides populations and improving wheat yields. Thus, in Qalanchughan village three wheat varieties, the local (Hawler2, Hwler4) and the imported one (Wafia) were tested in the underground (prevention measures) such as organic fertilizers, biofertilizer, chemical fertilizers and chemical pesticides and aboveground (control measure) like biopesticides and conventional pesticides. Regarding the underground prevention measures the lowest population of insect was 0.48 larvae/M2 with the highest biological yield (7132.22 kg/ha) of the cereal found in combined soil and seed treatment (organic humic acid + seed mycorrhizal fungi). The lowest population was found in the local variety Hawler4 which was 0.61 larvae/M2 and the highest population was found in Wafia which was 1.04 larvae/ M2. On the other hand, the aboveground treatments also differ in their effectiveness against Z. tenebrioides thus the lowest population of the larvae in 1/M2 was found in the chemical pesticide, Alphacypermethrin 0.38 larvae/ M2 that was not significantly different from Eucalyptus globulus extract which was 0.60 larvae/ M2. Furthermore, maximum biological yield and treatment efficiency were found in Alphacypermethrin followed by eucalyptus extract which was (5581.11 kg/ha and 108.54). The biopesticides and plant extracts can be used as part of integrated pest management techniques to lower the beetle populations and encourage sustainable farming.

Development of SWAT, a Solar and Wind Powered Agricultural Pest Trap-peller

In the Philippines, pest infestation has been a major challenge for farmers which led to significant losses in crop yields and income due to the lack of access to effective pest management techniques. To address this issue, the researchers developed a pest management device powered by solar and wind energy used to minimize pest infestation in the fields. This research utilized the phases of the System Development Life Cycle in developing the prototype. This system utilized an ultrasonic speaker and ultraviolet light (UV) bug zapper as the main components of the device. The device was able to collect insects and moths in the farmland and was able to decrease the number of insects and moths collected from 3 kg to 0.01 kg in one week. The researchers were also able to prove that the ultrasonic speaker with a frequency of 15 kHz was effective for deterring birds up to 40 meters away from the device. Comparison between the traditional method and the developed prototype showed that the latter requires less amount of work and human intervention thus, eliminating the adverse health effects from continuous exposure to loud sounds and insecticides used in the traditional ways. End-user evaluation results showed excellent functionality, very easy to use, high-performance efficiency, strong security, and very easy to maintain proving the prototype’s effectiveness as an alternative solution to the problem of pest infestation in farmlands.

Field appraisal of entomopathogenic fungi horizontal transmission device for entomo-vectoring of Beauveria bassiana and Metarhizium anisopliae in bitter gourd field against Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae)

BackgroundBactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) infestation poses a serious risk to bitter gourd cultivation. Traditionally, B. cucurbitae has been controlled using synthetic pesticides, which have drawbacks such as non-target toxicity and pest resistance. Entomopathogenic fungi (EPF) provide concentrated ecological alternatives, which support ongoing pest reduction and sustainable agriculture by adhering to Integrated Pest Management principles. Therefore, EPF provides a viable alternative for chemical control of B. cucurbitae, addressing its shortcomings and promoting environmentally friendly pest control technology. This study evaluated the effectiveness of entomo-vectored horizontal transmission devices (EV-HTD) against B. cucurbitae in bitter gourd fields, focusing on GF-120 and Butanone acetate. Assessment parameters include converting fruit infestation data into yield loss per plant, marketable fruit yield per plant, marketable yield per hectare, and yield loss per hectare.ResultsThe highest mean percentage of entomo-vectored B. cucurbitae (70.50%) was found in plots treated with Butanone acetate + B. bassiana-based EV-HTD. This was followed by GF-120 + B. bassiana-based EV-HTD (66.18%), Butanone acetate + M. anisopliae-based EV-HTD (58.95%), and GF-120 + M. anisopliae-based EV-HTD (54.78%). The Butanone acetate + B. bassiana-based EV-HTD produced the highest mean number of spores per B. cucurbitae (7.80 spores/cm2), while the other treatments produced low spore counts. Plots treated with Butanone acetate + B. bassiana-based EV-HTD had the highest percentage mortality of B. cucurbitae (81.20%). The percentage of fruit infestation varied between 9.00 and 34.00%, with the least amount of infestation seen in plots treated with B. bassiana + Butanone acetate. There were minimal yield losses in Butanone acetate. The Butanone acetate + B. bassiana-based EV-HTD showed the lowest yield losses (66.66 g/plant), while the other treatments showed high losses. Plots treated with Butanone acetate + B. bassiana-based EV-HTD had the highest marketable yield per plant (673.87 g/plant), while yields in control treatments were low. Plots treated with Butanone acetate + B. bassiana-based EV-HTD had the highest marketable yield (2217.85 kg/ha). Lastly, plots treated with Butanone acetate + B. bassiana-based EV-HTD (219.40 kg/ha) showed the lowest yield losses per hectare.ConclusionsAccording to the study’s findings, Butanone acetate-based EV-HTD was more successful than GF-120. Furthermore, B. bassiana was more effective at controlling B. cucurbitae than M. anisopliae. With a maximum cost–benefit ratio of 14.99, the treatment Butanone acetate + B. bassiana was shown to be the most advantageous economically, suggesting its potential for use in practical pest management techniques.

Pre-Harvest Losses and Strategies Adopted by Plantain Farmers in Mitigating Them in Bayelsa State, Nigeria

The study examined the pre-harvest losses and strategies adopted by plantain farmers in mitigating them in Bayelsa State, Nigeria. The specific objectives were to identify causes of pre-harvest losses and evaluate strategies adopted by plantain farmers in mitigating pre-harvest losses. Five (5) Local Government Areas (Yenagoa, Ogbia, Kolokuma-Opokuma, Sagbama, and Southern Ijaw) were purposefully selected using a multi-stage sample technique. These LGAs were selected based on the predominance of commercial plantain producers in each of the five (6) villages within each LGA. Additionally, there are eight (8) plantain farmers in each village, for a total of 240 plantain farmers. A structured questionnaire was employed to extract the necessary data from the selected farmers. The result indicates that theft, pest, flood, diseases and logging were the major causes identified affecting pre-harvest losses of plantain in the study area. Furthermore, planting of permanent crops as blockade, use of flood free zones for cultivation, use of improved varieties of sucker, practice of integrated pest management technique, better extension services and cultivating dwarfish breeds were strategies employed by plantain farmers to reduce pre-harvest losses. The recommendations made in light of the findings were for farmers to receive appropriate orientation and/or fundamental training in important farm management techniques, with a focus on plantain production pre-harvest losses. They will become more profitable as a result and become more effective.

Evaluating the Impacts of Integrated Pest Management Techniques on Cotton Crop for Cost-effectiveness as Recommended by Dr. PDKV, Akola, Maharashtra, India

Since cotton is a major crop grown for commercial purposes in the Vidarbha region, Dr. PDKV Akola conducted and recommended the current study, which has several goals, including determining the extent to which recommended technology has been adopted in cotton production, examining input utilization in cotton at varying levels of adoption of IPM technology, calculating the cost-effectiveness and profitability of cotton at varying levels of adoption of IPM technology, and analyzing the barriers to technology adoption. The districts of Akola and Buldhana in Maharashtra State's Vidarbha area served as the study's locations. Three tahasils—Akola, Akot, and Sangrampur—were chosen from these districts, and 120 farmers were chosen from these villages, namely Varvat Khanderao, Khiroda, Sangrampur, Rambhapur, Mandala, Kinkhed Purna, and Khambora. The primary data, which cover the years 2022–2023, were gathered using a straightforward random sample technique. As a result of input usage, the group with a high adoption level utilized the most human labor. All three categories had seed rates, resistant variety usage at the indicated level, and sowing times that were closer to the recommended level. Farmyard manure, at 30.68 quintals per hectare, is most commonly used in the high adopter category. This is followed by medium adopters (16.80 q/ha) and low adopters (14.05 q/ha). The results of applying fertilizer (NPK) indicate that more was applied in all three categories at the recommended level. The highest per hectare yield, 16.64 quintals, was recorded by the high adopter group, followed by 14.01 quintals for the medium adopter group, and 12.71 quintals for the low adopter group. The net returns at Costs "A1," "B2," and "C2" were in the high adopter category, with amounts of Rs. 76557.94/-, Rs. 59781.64/-, and Rs. 50163.47/-. For low, medium, and high adopters, the input-output ratios at cost "A1" were 1.95, 2.05, and 2.27, respectively, but the input-output ratios at cost "C2" were 1.36, 1.43, and 1.58 for these same adopters. High adopter farmers saved Rs. 599.58 and Rs. 854.32/-per quintal at Costs "A1" and "C2" as a result of the per unit cost decrease. IPM technology was discovered to make cotton farming profitable because it reduced the cost of plant protection measures while simultaneously increasing yield. As a result, all cotton growers need to employ IPM technology more widely.

Effect of Weeding Frequency for the Control of Flea Beetle (Podagrica spp) on the Production and Yield of Okra (Abelmoschus esculentus (L.) Moench) in Zaria, Kaduna State

Field trials were carried out at Samaru, Zaria in the 2022 and 2023 cropping seasons to study the effect of weeding frequencies for the management of flea beetles (Podagrica spp.) on the production and yield of okra (Abelmoschus esculentus L. Moench). A randomized complete block design (RCBD) replicated four times was used to evaluate the four weeding frequencies: no weeding, one weeding, two weeding, three weeding, and four weeding. Data were collected on the number of beetle populations, the number of flowers produced, number of damaged fruits, number of leaves damaged and the weight of the fruits. The results of the present findings demonstrated that, in comparison to other weeding frequency, fruit yield were higher in plots that were weeded four times, while the populations of flea beetles (Podagrica spp.), number of flowers and leaves damaged were significantly (P<0.05) higher in one, two and four weeding compared with no and three weeding frequencies. Fruit damaged weight was considerably (P≤0.05) decreased in two and three weeding. Thus, as part of integrated pest management (IPM) techniques to optimize flea beetle control, this study highlighted the significance of two and three weeding frequencies

Understanding Insect Behavior and Physiology for Effective Pest Management

Effective pest management is crucial for sustainable agriculture and public health, necessitating a deep understanding of insect behavior and physiology. This paper explores the intricate mechanisms that govern insect activities and their interactions with the environment, which are pivotal in developing targeted and efficient pest control strategies. By delving into the sensory and neural processes that drive insect behavior, we uncover how insects locate food, mates, and habitats, providing insights into disrupting these processes to control pest populations. Additionally, the study examines the physiological adaptations that enable insects to thrive under various environmental conditions, such as resistance to pesticides and adaptation to climate changes. Understanding these adaptations is essential for designing novel, more sustainable pest management techniques. The paper also discusses the role of chemical ecology in pest management, focusing on pheromones and other semiochemicals used in integrated pest management (IPM) programs. By combining behavioral studies with physiological research, this paper aims to highlight the synergy between these fields, offering a comprehensive approach to developing innovative and effective pest control methods. The ultimate goal is to contribute to the advancement of pest management practices that are not only effective but also environmentally sustainable and economically viable.

Comparative proteome analysis of Spodoptera litura-infested Zea mays reveals a robust defense strategy targeting insect peritrophic membrane

Herbivorous insects such as Spodoptera litura, pose a constant threat to agricultural crops. The incompetence of contemporary pest management tools and techniques stipulates unravelling of molecular dogma, that drives pest-plant interaction. From our previous observations, we inferred that despite being a voracious polyphagous herbivore, S. litura growth and adaptability is severely hampered on maize foliage diet. In this investigation we explored further and demonstrated the impact of maize diet on the insect gut peritrophic membrane (PM, a crucial membrane involved in compartmentalizing digestive events and absorption of nutrients), its structural analysis using scanning electron microscopy (SEM) revealed damaged and perforated PM. Further, this study delves into the intricate resistance mechanism adapted by Z. mays against S. litura by conducting a comparative proteome analysis. We have detected 345 differentially abundant proteins (DAPs) at p < 0.05 and fold change ≥1. The DAPs were categorized as plant defense, secondary metabolite synthesis, redox homeostasis, cytoskeleton/cell wall biosynthesis, primary metabolism, transport and molecular processes. We remarkably report differential expression of proteolysis- and defense-related proteins that have potential to target insect gut, digestion and absorption of nutrients. Our findings contribute to a deeper understanding of the molecular dynamics governing maize resistance against S. litura. Understanding of such intricate molecular dialogues at these interfaces could provide valuable information on the arms race between plants and herbivores, it may pave the way for innovative pest management strategies.

The current pathogenicity and potential risk evaluation of Crimean-Congo hemorrhagic fever virus to cause mysterious "Disease X"-An updated literature review.

Crimean-Congo hemorrhagic fever (CCHF) is a severe and potentially lethal illness. Tick bites of the Hyalomma genus are the primary source of transmission of CCHF to humans. The virus responsible for CCHF is the CCHF virus (CCHFV). It is a single-stranded negative sensed RNA virus. The virus belongs to the Orthonairoviridae genus within the Nairoviridae family. It occurs in an extensive geographical area spanning the Middle East, western China, southern Asia, southeastern Europe, and much of Africa. The current study aimed to evaluate the pathogenicity and potential risk of CCHFV to cause a public health emergency of international concern. We searched updated relevant information from PubMed, Google Scholar, and Scopus databases using Crimean-Congo hemorrhagic fever, tick-borne virus, and Nairovirus as keywords. The case fatality rate (CFR) varies by region. It can be more than 30% in some cases. Three segments in the genome of CCHFV (L, M, and S) are different in size and function. It is unknown whether the pathogenicity of CCHFV varied based on the genomic diversity. CCHFV can be transmitted through tick bites, handling of infected ticks, contact with infected humans, contaminated body fluids, and so on. A wide range of severity is associated with CCHF, ranging from a moderate fever with no apparent cause to increased vascular permeability, failure of several organs, bleeding, and shock. Hospitals with high-level isolation units should be the first choice for treating CCHF patients. Individual safety equipment is crucial in healthcare to prevent the spread of the virus. In the farm environment, using integrated pest management techniques, minimizing activity in tick-infested regions, and dressing appropriately in long sleeves and pants will help to reduce the risk of CCHFV infection via tick bites. There are no approved vaccinations or therapeutics for CCHF except supportive therapeutic approaches. Therefore, scientists recommend early ribavirin therapy for cases of high-risk exposures.

Do maternal allocations towards offspring quality and quantity ameliorate the effects of predators on offspring survival?

AbstractReproductive allocation is often balanced between the quantity and quality of offspring. Ecological stresses, like exposure to predators, can cause organisms to shift their allocations along this continuum. While the consequences of such plastic shifts for offspring performance are often untested, they are critical to understanding the potential long‐term benefits of manipulating predation risk as an agricultural pest management technique. Predation risk induces reductions in egg production and increases in nutritional condition due to maternal provisioning in Colorado potato beetles (Leptinotarsa decemlineata, CPB). Here, we tested whether reductions in density or increases in offspring condition, which may increase per‐capita larval survival, can compensate for the reduction in total egg production, especially when offspring are exposed to predators. In two field trials, we manipulated density and condition of larval CPB and measured survival through development to adulthood in field cages with and without predaceous stink bugs (Podisus maculiventris). As expected, cages with the higher initial larval densities had more larvae and adults surviving in the treatments without predators – about 30%–50% survival across densities. When predators were present, this relationship did not hold because of density‐dependent predation. Larval condition interacted with density and impacted larval survival in both trials albeit in different ways. In trial 1, unprovisioned beetles had higher survival at the higher densities; in trial 2, provisioned beetles had higher survival across densities. Synthesis and Applications: Overall, our test of the effects of predation risk via manipulations of larval density and condition revealed few net compensatory benefits to the prey of reduced density and higher condition. Benefits to the prey of shifts in allocation from the quantity to quality of offspring may depend on factors that influence the strength of density dependence, including predation intensity. Our results suggest a new strategy of taking advantage of the reductions in prey density due to non‐consumptive effects of predators as a pest management approach to protect plants.

Indigenous Knowledge in Termite Management of Agricultural Crops – A Review

Some species of termites are becoming a threat to the farming community as they are directly and indirectly using major losses to the agricultural system. Reports on economic losses caused by termite infestations have been made worldwide. Intensive use of insecticides which is of great environmental and health concerns was the most frequently control option. To make termites management environmentally friendly, there is a need to integrate indigenous knowledge about pest management techniques into the scaling-up process in order to improve farmers’ pest management practices. For centuries, humans planned agricultural production and conserved natural resources with the instruments of indigenous knowledge (IK). The development of indigenous knowledge systems is cumulative, representing generations of experience, careful observations, trial and error experiments. The objective of this review, we present the available information related to indigenous technology in termite management practices and to identify suitable and sustainable indigenous methods adopted by resource poor farmers for termite control.

Relish involved in immunity and larval survival in the willow leaf beetle Plagiodera versicolora.

Insects mainly rely on innate immunity against pathogen infection. Plagiodera versicolora (Coleoptera: Chrysomelidae), is a worldwide leaf-eating forest pest in salicaceous trees. However, the mechanisms behind the immunodeficiency pathway (IMD) remain poorly understood. In this study, we obtained a Relish gene from transcriptome analysis. Tissue and instar expression profiles were subsequently obtained using quantitative real-time polymerase chain reaction analysis. The results showed that Relish has high expression levels in eggs, larvae and adults, and especially in fat bodies. Transcripts of the tested antimicrobial peptides (AMPs), defensin1, defensin2 and attacin2 were downregulated by dsRelish. Knockdown of Relish led to greater mortality in larvae after Staphylococcus aureus infection. In addition, we performed bacterial 16S ribosomal RNA-based high-throughput sequencing. The results showed that the relative abundance of some gut bacteria was significantly altered after dsRelish ingestion. This study provides a greater understanding of the IMD signaling pathway, facilitating functional studies of Relish in P. versicolora. Moreover, a genetic pest management technique might be developed using Relish as a lethal gene to control the pest P. versicolora. © 2024 Society of Chemical Industry.

Neem's promise: The way to a sustainable future and eco-friendly biopesticides

Modern agriculture must include pest management since pests can seriously harm crops and lower yields, resulting in considerable financial losses. Conventional chemical insecticides have been used as the main method of pest management, but their detrimental effects on the environment and human health have inspired the quest for new environmentally friendly options. In this situation, Azadirachta indica showed promise as a sustainable and eco-friendly biopesticide. This research shows many aspects for Azadirachta indica as an environment friendly biopesticide. Neem is well known for having antiviral, antiseptic, and antifungal characteristics, which make it a crucial component in remedies for many illnesses, skin disorders, and mouth care. It is also beneficial to the environment. When added to the soil, its seeds and leaves help increase the fertility of the soil and structure. Additionally, the tree's large root system helps stop soil erosion. Azadirachta indica, is a great asset in the field of pest control and agricultural sustainability due to its repellent and antifeedant qualities. These characteristics are a result of neem's bioactive substances, known as Azadirachtin which has been the subject of in-depth study and use because of its function as a natural repellent and antifeedant Azadirachtin is a potent natural insect growth regulator because it interferes with beetle feeding, molting, and reproduction. Furthermore, the eco-friendliness of azadirachtin and its safety for people and non-target animals highlight its essential function in sustainable pest management techniques, aiding in the advancement of environmentally friendly and healthier agricultural systems. The neem plant is a unique botanical gem that has enormous medicinal, farming, and cultural significance. Its adaptability and environmental friendliness make it an important resource for sustainable agriculture and human well-being. Three commercialized neem-based formulations were tested aphid, Myzus persicae, including Azatrol, Triple Action Neem Oil (70% neem oil), and Pure Neem Oil (100% neem oil) in greenhouse and laboratory settings. A bioassay using a leaf disc choice test indicated that of the established neem-based insecticides tested were effective against the aphid at the recommended concentrations. However, a doubling in the quantity of Azatrol and Triple Action Neem Oil resulted in a 50% decrease in the number of aphids landing on handled leaf tissue compared to untreated leaf tissue.

Wolbachia Interactions with Diverse Insect Hosts: From Reproductive Modulations to Sustainable Pest Management Strategies.

Effective in a variety of insect orders, including dipteran, lepidopteran, and hemipteran, Wolbachia-based control tactics are investigated, noting the importance of sterile and incompatible insect techniques. Encouraging approaches for controlling Aedes mosquitoes are necessary, as demonstrated by the evaluation of a new SIT/IIT combination and the incorporation of SIT into Drosophila suzukii management. For example, Wolbachia may protect plants from rice pests, demonstrating its potential for agricultural biological vector management. Maternal transmission and cytoplasmic incompatibility dynamics are explored, while Wolbachia phenotypic impacts on mosquito and rice pest management are examined. The importance of host evolutionary distance is emphasised in recent scale insect research that addresses host-shifting. Using greater information, a suggested method for comprehending Wolbachia host variations in various contexts emphasises ecological connectivity. Endosymbionts passed on maternally in nematodes and arthropods, Wolbachia are widely distributed around the world and have evolved both mutualistic and parasitic traits. Wolbachia is positioned as a paradigm for microbial symbiosis due to advancements in multiomics, gene functional assays, and its effect on human health. The challenges and opportunities facing Wolbachia research include scale issues, ecological implications, ethical conundrums, and the possibility of customising strains through genetic engineering. It is thought that cooperative efforts are required to include Wolbachia-based therapies into pest management techniques while ensuring responsible and sustainable ways.