Insect Nets Research Articles

The diversity of butterflies (Lepidoptera: Rhopalocera) at Tanahbala Island, North Sumatra, Indonesia

Abstract. Mairawita, Duha S, Herwina H. 2023. The diversity of butterflies (Lepidoptera: Rhopalocera) at Tanahbala Island, North Sumatra, Indonesia.Biodiversitas 24: 1759-1765. The research was conducted from April to October 2015 to observe the diversity of butterflies (Lepidoptera: Rhopalocera), complete an inventory, and obtain information about biodiversity on Tanahbala Island, South Nias District, North Sumatra Province, Indonesia. Tanahbala Island is a small island in Indonesia with high biodiversity potential. Sampling in the study was carried out in the Fagugu and Tebolo areas with different habitat types, namely forests, forest edges, and residential areas. The tools used to collect samples are cylinder gauze and insect nets. After sampling, 617 butterflies were collected and identified. The identification results showed 52 species of butterflies consisting of 42 genera and nine families. The Nymphalidae family has the most observed species, namely 17, while the Acraeaidae family has only one observed species. The diversity index of all butterflies collected in this study showed a high average value of 3.00. This shows that the biodiversity of butterflies on Tanahbala Island is relatively high. The data obtained from this study will be beneficial to support biodiversity conservation efforts on Tanahbala Island, particularly in managing butterfly habitats. In addition, this data can also be a reference for researchers and conservationists to preserve butterfly biodiversity in Indonesia. This research also shows the importance of inventorying and monitoring biodiversity in Indonesian territory, especially in small islands such as Tanahbala Island, which should be addressed. With better inventory efforts, more complete and accurate data can be produced regarding the biodiversity in Indonesian territory so that more appropriate and effective conservation efforts can be carried out.

Keragaman Serangga pada Tanaman Terong Ungu (Solanum melongena)

Indonesia as a mega-biodiversity country has a very diverse diversity of insects. The diversity of these insects has both beneficial and detrimental roles. The beneficial role of insects is that they act as pollinators, predators of pests and regulators of wild plant populations, while the detrimental roles of insects are plant-eating pests and disease vectors in plants. Insects have many habitats, one of which is purple eggplant or solanum melongena. Eggplant is cultivated for consumption and contains many ingredients. This plant is widely cultivated because it contains nutrients consisting of minerals and vitamins such as A, B and C, is low in calories and fat, and contains some protein, fiber and carbohydrates. This research is included in the quantitative descriptive research. This research is located on the agricultural land of PT. BIO, which is located at Jl. Banjar Sari No. 38, Dusun Awisurat, Tanjungsari, Kec. Tanjungsari, Sumedang Regency, West Java and takes place for 2 weeks in November 2022. Insect data collection uses insect nets and data that can be analyzed using relative abundance and Shannon-Wiener diversity index values. The insects found consisted of 6 orders namely Diptera, Hemiptera, Coleoptera, Orthoptera, Mantodea and Hymenoptera. The six orders consist of 9 families. The eggplant planting area has a Shannon-Wiener diversity index value of 1.8 so that the planting area conditions are close to natural conditions with an index value of > 2. From the findings, insects can be classified into four groups based on their role in eggplant plants. Based on their roles, six pest species, three predator species, one pollinator species and one non-pest species. The abundance of insect species in eggplant planting fields has low criteria except for Henosepilachna vigintioctopunctata which is moderate. The level of insect diversity in purple eggplant plantings was moderate, with the species that had the highest abundance being Henosepilachna vigintioctopunctata

Species diversity of medically important necrophagous flies in Southwest Iran

Abstract. Akbari M, Rafinejad J, Fazeli-Dinan M, Aivazi AA, Jalilian A, Sheikhi S, Akbarzadeh K. 2023. Species diversity of medically important necrophagous flies in Southwest Iran. Biodiversitas 24: 1467-1472. Species diversity of medically important necrophagous flies in Southwest Iran. Biodiversitas 24: 1467-1472. The insects are the most successful group in the phylum Arthropoda. Flies are among the most diverse group of insects and organisms. Flies can affect human health in many ways, such as the transmission of a wide range of pathogens and myiasis. Species diversity is the middle level of the hierarchical system of biodiversity. Flies, like other insects, are sensitive to biotic and abiotic factors, and their biodiversity will change under different climatic conditions. This study was performed in Ilam province, in southwest Iran. Two methods were used for collecting the flies, including bottle traps and insect nets. Fly collections were done monthly at each collection site for a year, and to identify the trapped flies, reliable identification keys were used. Calculation of fly species diversity indices was done based on the Shannon-Wiener index, species dominance based on the Simpson dominance index, species richness employing the Margalef's index, and evenness was performed based on the Evenness index. Different aspects of species diversity were calculated using PAST V.3 software. The dominance and abundance of necrophagous flies were higher in the south of the province. The highest evenness was related to the north of the province. A comparison of the diversity of necrophagous flies also indicated that the north of the province has a high species diversity. A significant and positive relationship between fly frequency and the temperature was seen. There was also a significant and negative relationship between the frequency of flies and humidity. The results of this study completed one of the research puzzles on the biodiversity of Iranian flies. The abundance and diversity of necrophagous flies were high in the Ilam province, especially in spring.

Struktur Komunitas Artropoda di Pembibitan Kelapa Sawit

Nurseries are one of the essential agronomic activities in oil palm cultivation. Oil palm seedlings are cultivated on a large scale, different from nurseries for other plantation commodities. The nursery expanse comprises various biotic components, one of which is Arthropods. This study aims to determine the Artropod community and its function in oil palm nurseries. The research was carried out at two nurseries, Nagari Gunung Medan and Nagari Kurnia Selatan, Dharmasraya Regency, West Sumatra Province. Sampling using the pitfall trap, yellow pan trap, insect nets, and direct collection methods. The results showed that the Arthropods that make up the oil palm nursery ecosystem were insects and spiders. Arthropods in oil palm nurseries act as phytophages, predators, parasitoids, and detrivores. Phytophage insects found in oil palm nurseries were 700 individuals consisting of 4 orders, nine families, and 14 genera/species. Predatory insects, parasitoids, and detritivores were found in as many as 466 individuals consisting of 5 orders, 14 families, and 16 genera/species. There are two species of spiders in oil palm nurseries: Pardosa sp and Oxyopes javanus. Valanga sp was the species with the highest number of individuals in oil palm nurseries.

Diversity of insect flower visitors of cayenne pepper in agricultural landscapes, Banggai, Central Sulawesi

The existence of semi-natural habitats around agricultural land has the potential to support ecosystem services by providing resources for beneficial insects. The study aimed to analyze the abundance, diversity index, and evenness of the insects visiting cayenne flowers. This research was carried out in cayenne cultivation areas in the Banggai Regency. Sampling locations were divided into two categories: cayenne fields close to and far from forests or semi-natural habitats. Insect collection was carried out from June 2022 to August 2022, in the morning and evening, using insect nets. The results showed that 16 families and 52 cayenne flower-visiting insects were identified. Lasioglossum sp.3, Lasioglossum sp.5, Megachile sp.2, ?Parancistrocerus sp. and Rhynchium sp. have a higher abundance than the others. The highest Shannon and Wiener diversity index was found in cayenne fields in Tolisu Village (H'= 2.491), Mansahang (H'= 2.216), Salodik (H'= 2.145), and the lowest in cayenne fields in Kembang Merta Village (H'= 1.211), Dale-Dale (H'= 1.112 ), and Beringin Jaya (H'= 1.149 ). The highest evenness index (E) was found in the fields in Lembah Makmur Village (E= 0.9721) and Mansahang (E= 0.9172), and the lowest was found in cayenne fields in Petak Village (E= 0.3975) and Lenyek (E= 0.4405). The highest species richness was found in cayenne fields in Tolisu (14 species), Salodik (14 species), and Petak (12 species). Cayenne fields in the three villages are close to semi-natural habitats. Our findings show that agricultural land adjacent to semi-natural habitats has increased the species richness of cayenne flower visitor insects. Thus, semi-natural habitats are critical to sustaining insect communities in agricultural landscapes.

The Study of Dragonfly (Odonata) Diversity as Bioindicator of Water Quality in Science Techno Park Spring-Beleknehe Village

Dragonflies are bioindicator insects for the quality of the aquatic environment, especially springs. This study aims to determine the types of dragonflies that live in the Science Techno Park (STP) spring, Beleknehe village, Nekemese sub-district, Kupang District. STP is owned by Widya Mandiri Catholic University. This research was conducted in September 2022. Data collection consisted of dragonfly samples and abiotic factors. Dragonfly samples were obtained using insect nets and hand sorting, while abiotic factor measurements included physical (TDS, DHL) and chemical (hardness, iron, sulfate, Mn, NO3, NO2) parameters. The results of the study revealed that there were four types of dragonflies namely Neurothemis stigmatizans, Coenagrion lunulatum, Megalagrion sp., and Orthetrum pruinosum. The four dragonflies found showed that the quality of the Science Techno Park spring was still in good condition.

Population dynamics of brown planthopper Nilaparvata lugens stall and arthropod diversity on rice ecosystem with returned straw and different spectrum of insecticides

The natural ecosystem of lowland rice in Indonesia is rich in biodiversity. However, high-intensity insecticide accompanied by a lack of organic matter in the form of straw returned to the fields causes the fragile agroecosystem, decreasing the abundance and species diversity of natural enemies, causing a broken food chain, and the tremendous potential for the outbreak of rice pests. Need study to understand the impact of returned straw and different insecticide spectrums on the diversity and abundance of arthropods and the brown planthopper (BPH) in rice fields. The experiment was located in Ciwaringin, Lemahabang, Karawang, West Java, during the rainy season from January-April 2022.The field trial was conducted under a split-plot design consisting of two main plots: rice field with and without returned straw and three subplots: without insecticide, fipronil as insecticide broad-spectrum, and triflumezopyrim as insecticide narrow-spectrum. The first insecticide was applied at an economic threshold level. Arthropods were sampled biweekly by systematically using a vacuum and insect nets. Population observation of BPH was done weekly until one week before harvest. The result showed that there are 40 morphospecies, 29 families, and 9 orders of arthropods. Based on the functional roles, there were 48.6% pests, 19.2% predators, 5.8% parasitoids, and 26.4% other role arthropods. Plots with returned straw showed a 5.4% higher abundance and diversity of arthropods than those with unreturned straw. The plot treated with triflumezopyrim showed a significantly lower population of the BPH than the plot treated with fipronil and was similar arthropod diversity to the untreated plot. In conclusion, returning straw to the paddy fields provides many ecological and economic benefits.

Insect netting: effect of mesh size and shape on exclusion of some fruit pests and natural enemies under laboratory and orchard conditions

To improve exclusion systems for fruit trees, insect nets of various types were evaluated for their permeability to different beneficial and pest species, under laboratory and field conditions. Pests studied were the apple maggot, Rhagoletis pomonella (Diptera: Tephritidae) and the spotted wing drosophila, Drosophila suzukii (Diptera: Drosophilidae). Beneficials were Aphidoletes aphidimyza (Diptera: Cecidomyiidae), Aphidius matricariae (Hymenoptera: Braconidae) and Aphelinus abdominalis (Hymenoptera: Aphelinidae). Mesh nets with five different apertures (square, rectangle, triangle, rhombus and hexagon) and six different sizes (from 0.4 to 2.8 mm) were 3D-printed from strands of polylactic acid and tested in the laboratory along with two commercially available nets made of polyethylene. The physical and behavioral characteristics of the six studied species affected their ability to cross the nets. For an equal size (open area), the intrusion rate was generally greater through the square- and/or hexagonal-shaped meshes. Rectangular-shaped apertures totally excluded the apple maggot in both laboratory and field trials, provided their shortest side did not exceed 1.9 mm. For the spotted wing drosophila, a maximum of 1.0 mm was similarly required for exclusion in the laboratory. The shape factor (length/width ratio) of the apertures appeared to affect net selectivity. Field trials confirmed that more aphid predators and leafroller parasitoids colonized trees covered with larger mesh nets (2.3 × 3.4 mm), while still excluding the apple maggot. Thus, for a similar aperture size (area), an elongated rectangular-shaped mesh appears to facilitate access for beneficials, while continuing to provide effective protection against apple pests.

Inventory of Pests on Local Potato Plants from Soe in South Central East District, Province of East Nusa Tenggara

Sub-districts Kie and Fatumnasi are two sub-districts in mainland West Timor that cultivate local potatoes from Soe. This germplasm needs to be preserved and developed to diversify non-rice alternative food. One of the main obstacles in cultivating potatoes is the presence of pests, but so far there have been no reports of pests on local potato plants from Soe from the two sub-districts, so this research needs to be done. This study aimed at an inventory of important pests on local potato plants from Soe as a database for early detection to prevent the occurrence of explosive pests. This research was conducted on potato plantations in Fatuulan Village, Ayofanu Village, Nunleu Village, and Nenas Village. The method used is a purpose survey at a specified sample point. A sampling of insect pests is done by direct observation and insect nets. The pests found were put in a killing bottle or 70% alcohol, collected, and identified. Observation variables include the type of pest, symptoms of pest attack, and morphological characteristics of the stadia found. The data obtained were analyzed descriptively. The results showed that five species of pests damaged local potatoes from Soe. The five pests were Spodoptera litura, Henosepilachna vigintioctomaculata, Liriomyza sp, Phthorimaea operculella, and Nezara viridula. The identification results showed that in Kie District there were three pest species, namely S. litura, H. vigintioctomaculata, and Liriomyza sp. Meanwhile, in Fatumnasi District, there were four types of pests, namely H. vigintioctomaculata, Liriomyza sp, P. operculella, and N. viridula

KEANEKARAGAMAN BELALANG (ORTHOPTERA : CAELIFERA) PADA AREA PERSAWAHAN DI DESA SEKETI, KECAMATAN MOJOAGUNG, KABUPATEN JOMBANG

Rice field ecosystem is an artificial ecosystem that is used in agriculture. Rice fields in Seketi Village have vegetation types of corn, sugar cane, and rice, so that it will affect of grasshopper diversity in each vegetation. The purpose of this study was to determine the diversity of grasshoppers (Caelifera) and to determine the effect of vegetation on the diversity of grasshoppers in the rice fields of Seketi Village. The method used is purposive sampling and direct capture, namely research by making 5 plots measuring 5m x 5m with different types of plant vegetation (paddy, corn, sugar cane) catching with Sweep Net (insect nets). The results showed that there were species of Phlaeoba antennata, Phlaeoba fomusa, Oxya chinensis, Valanga nigricornis, Caryanda spuria, Atractomorpha crenulata, and Tettigidea sp. with a total of 152 individuals from 3 families. The diversity index value shows that plot 4 (maize plants) has the highest H' = 1.58 with 6 species of grasshoppers found and plot 1 (cane plants) has the lowest diversity index value of H = 1.09. Based on the differences in the value of grasshopper diversity in each plot caused by different types of vegetation, habitat conditions, and abiotic factors.

PM 4/17 (3) Certification scheme for olive trees and rootstocks

<scp>PM</scp> 4/17 (3) Certification scheme for olive trees and rootstocks

Surveys on the Pyraloidea and Geometridae (Lepidoptera) Fauna of Mount Ararat and its surroundings

The present study is carried out between 2017-2019, to determine Pyraloidea and Geometridae fauna of Mount Ararat and its surroundings. The studies are conducted at night with light traps and insect nets during the day. Samples are firstly identified by using their external morphological characteristics and genital structures of taxa are examined when necessary. As a result of the researches, 135 species from Pyraloidea superfamily and 70 species from Geometridae family are determined. Among these taxa, 65 species of Pyraloidea and 41 species of Geometridae are newly discovered in Lepidoptera fauna of Iğdır province. The number of pyraloid species in Iğdır province increased to 217 and the number of geometrid species increased to 118. Information on the new location records and distributions of Ancylodes pallens Ragonot, 1887, Aphyletes nigrisparsella (Ragonot, 1887), Calamotropha paludella (Hübner, [1824]), Cydalima perspectalis (Walker, 1859), Ephestia kuehniella Zeller, 1879, Gymnancyla nomiella (Ragonot, 1887) G. hornigii (Lederer, 1852), Myrlaea mimicralis (Amsel, 1950) and Tephris verruculella (Ragonot, 1887), whose distribution areas are limited in Turkey, are presented.

Determining Noctuidae, Erebidae, Euteliidae and Nolidae (Lepidoptera, Noctuoidea) Families of Hasankeyf in Batman, Turkey

The present study conducted on the Noctuoidea (Lepidoptera) fauna takes place in Hasankeyf, Batman prov., southeastern Turkey, between 2018-2020. Field based investigations were prominently carried out from sunset till sunrise due to the fact that the dominance of Noctuoidea species are regarded as nocturnal. Insect nets and UV light traps took over efficient roles in capturing noctuoid moths. The cycle of collecting those samples comprised of softening, stretching and identifying consecutively in accordance with the current literature. The results of the research indicated that there are 160 noctuoid moth species in the study area, 110 of which are newly recorded from Batman. The second report of Haemerosia vassilininei A. Bang-Haas, 1912 and endemic Dryobotodes glaucus Ronkay &amp;amp; Gyulai, 2006 in Turkey, are highlighted.

FLUKTUASI KELIMPAHAN DAN KERAGAMAN KUPU-KUPU (PAPILIONOIDEA) DI HUTAN KOTA ARBORETUM CIBUBUR JAKARTA

The Arboretum City Forest is located in Cibubur, East Jakarta, in this area there is biodiversity, one of which is butterflies. Butterflies act as an indicator of environmental change, in a habitat. There are two types of habitats in this urban forest, open and closed habitats, which greatly affect the diversity of butterflies. This study aims to determine the diversity of butterflies in the two habitats. The research was conducted in May 2021. The method used was a quantitative descriptive method, and the plot was carried out by purposive sampling. The study was carried out 4 times in each habitat (3 plots), with an interval of 1 week of observation. The research was conducted from 08:30 to 12:30, using insect nets and digital cameras. The number of butterflies found in open habitats was more (39 species, 177 individuals) than in closed habitats (25 species. 94 individuals). Based on, and the diversity of butterflies found shows a significant correlation with habitat conditions. In open forest habitats it is more suitable for butterflies. This difference is strongly influenced by the environmental conditions of the habitat, especially light, and plant diversity.

Evaluation of Methods to Collect Diurnal Culicidae (Diptera) at Canopy and Ground Strata, in the Atlantic Forest Biome.

Simple SummaryAutomatic traps employing CO2 chemical attractants and BG-Lure® (Biogents AG, Regensburg, Germany) were evaluated as an alternative to insect nets, which is the standard method in Brazil for capturing mosquitoes that transmit sylvatic arboviruses. The collections were conducted during the day, in the forest canopy and ground strata, at an environmental reserve in the Atlantic Forest. From the 18 collections conducted, 3570 specimens from 52 taxa were obtained. Nets were the best way to capture insects. The yield was similar in traps with CO2 and traps using CO2 combined with BG-Lure®. CO2 traps can complement collections with nets; however, for species of epidemiological interest in the genera Haemagogus and Sabethes, insect nets are still the best method, especially in the canopy.Hand-held insect nets are the standard method for capturing vector mosquitoes of sylvatic arboviruses; however, occupational risks and biases due to individual skill and attractiveness are important limitations. The use of chemical attractants and automatic traps could be an alternative to resolve these limitations. This study compares the yields achieved using nets with those employing electrical traps with CO2 and BG-Lure®, near the ground and in the canopy strata (6.0 and 8.0 m high). The study was conducted at the Cantareira State Park, which is in the Brazilian Atlantic Forest biome. In the 18 collections performed, 3570 specimens of 52 taxa were obtained. The most frequent species captured near the ground were Wyeomyia confusa and Limatus durhamii, whereas Sabethes albiprivus, Sabethes purpureus, and Haemagogus leucocelaenus were the most frequent in the canopy. The nets resulted in greater species richness and abundance, followed by the trap employing CO2. The combination of CO2 traps with BG-Lure® did not improve performance. The use of BG-Lure® alone resulted in low abundance and a low number of species. Our results demonstrate that the use of traps with CO2 can be complementary to collections with nets; however, for species of epidemiological interest such as those of the genera Haemagogus and Sabethes, especially in the canopy, the net remains the method of choice.

Inventory and identification dragonfly Family Libellulidae at Slamet Reservoir, Surabaya, East Java

Slamet Reservoir is an artificial reservoir located in the lowlands of urban areas. The existence of this reservoir with a stagnant water habitat type has great potential to become a natural habitat for various types of dragonflies, especially the Libellulidae family. This study aims to inventory and identify the types of dragonflies in the family Libellulidae in the Slamet Reservoir. In this study, the Visual Encounter Survey (VES) method was modified by using the Belt Transect method. This method is an observation by following a predetermined circular line. Sampling was carried out by catching adult dragonflies using insect nets and then preserving them using 50% acetone. After preservation, the body part of the dragonfly was measured using a caliper. The results showed that in the Slamet Reservoir there were 12 species of dragonflies from the Libellulidae family with a total of 131 individuals. The species with the highest relative abundance value in the Slamet reservoir is Brachythemis contaminata with a value of 51.15%. While the species with the lowest relative abundance values were Acisoma panorpoides, Diplacodes trivialis and Pantala flavescens with a value of 0.76%.

Intercropping patterns effect of cardamom and cayenne pepper on population and intensity of whitefly pest’s attacks (Bemisia tabaci)

The study aimed to determine the population and intensity of attacks caused by whitefly pests on intercropping and monoculture cultivation areas. This research was conducted from June to August 2021 in Pace Village, Silo District, Jember Regency. The method used is to compare two intercropping and monoculture cultivation areas of medicinal plants cardamom - cayenne pepper. The first plot was cultivated in monoculture with pest control using an insecticide with the active ingredient Alfametrin 15 EC, while in the second plot, cayenne pepper - cardamom intercropped cultivation with a spacing of 1x2 meters and pest control without pesticides. A systematic random sampling of 50 plants in both cropping patterns on cultivated land. Observation of pest populations using insect nets, pitfall traps, and insect suction in the field. The data were analyzed using SPSS version 15.0. The data were tested for normality using Kosmorogrof Smirnov with non-parametric analysis. The results showed that the whitefly population in monoculture cayenne pepper cultivation had a higher average of 57.58 individuals, while in cayenne-cardamom intercropping cultivation, the population average was 51.00 and showed significantly different results. The intensity of whitefly attack showed significantly different results in monoculture cultivation of 45.58% while intercropping pattern of 50.10%.

Keanekaragaman Kupu-Kupu (Sub Ordo Rhopalocera) pada Dua Tipe Habitat

This study aims to determine butterflies' species composition and species diversity in the Siabu area. The sampling method in this study used two ways, namely direct sampling using insect nets (transect count and netting) and bait traps along the transect (500 m transects in each habitat). The results showed that the number of individuals ranged from 109-114 (steppe-secondary forest) individuals and the number of species ranged from 19-52 species (pasture-secondary forest). The secondary forest has an index of species diversity and evenness of species, namely H'= 3.63 and E= 0.92 and grasslands have H'= 2.31 and E= 0.78. In conclusion, the diversity index value of the Siabu Village area is in the high category. In addition, there is one rare and protected butterfly species included in the CITES Appendix II list, namely Trogonoptera brookiana, which is found in secondary forest.&#x0D; Keywords: Species Diversity Index, Secondary Forest, Sub Order Rhopalocera

Identification of Soil Transmitted Helminths Eggs on Flies in KM 5 Market, Palembang City

The prevalence of Soil Transmitted Helminths (STH) infection in the world is still high, especially in areas with poor sanitation. This condition is often found in markets which becomes a favorite place for flies. Flies are insects that have the ability to fly far and habits of life that move around so they can become human health problems as mechanical vectors of STH infection. Therefore, this study aimed to find out the type and number of flies, and the contamination of STH eggs in flies in Pasar KM 5 Palembang City. This research was an observational descriptive study with a cross sectional design. The samples of this study were caught with accidental sampling using insect nets and fly traps. The samples processing and observation were made at the Biooptic and Chemistry Medic Laboratory, Faculty of Medicine Sriwijaya University. The number of flies obtained 419 flies and consisted of 136 Musca domestica (32.4%), 183 Chrysomya megacephala (43.7%), and 100 Lucilia sp. (23,9%). From 42 total samples studied, 14 samples positively contaminated with STH eggs (33.4%), that consisting of 3 samples of Musca domestica (7.2%), 6 samples of Chrysomya Megacephala (14.3%), and 5 samples of Lucilia sp. (11,9%). The number of STH eggs obtained 17 eggs, consisted of 16 eggs of Ascaris lumbricoides (94.1%) that was 3 eggs in Musca domestica (17.7%), 7 eggs in Chrysomya megacephala (41.1%), and 6 eggs in Lucilia sp. (35.3%), and 1 egg of Trichuris trichiura in Chrysomya megacephala (5.9%). The conclusion was that there was contamination of STH eggs on flies in KM 5 Market Palembang City.

English

The objective of this research is to assess the effects of the use of insect nets in vegetable production. To achieve this goal, data were collected in four departments of southern Benin (Mono, Couffo, Ou&eacute;m&eacute; and Plateau) using an interview guide and a structured questionnaire. A total of 223 producers chosen at random from these areas where the CRSP Horticulture Project is located were surveyed. The results of the study show that growers using insect nets have not given up using chemical pesticides. However, a significant reduction in treatment frequencies was recorded in the nursery and after transplanting for most of the pesticides identified. Similarly, a significant reduction (more than 60.0%) in pest attacks (Helicoverpa armigera, Hellula undalis, Plutella xylostella, Bemisia tabaci and cochineals) was recorded among producers using anti-insect nets at 5%. These results involve that it is necessary to sensitize farmers to the use of nets to protect plants. This will significantly reduce pest attacks and reduce the use of pesticides in production. Key words: Anti-insect nets, effects, pests, market gardening, Benin.