Brinjal Shoot Research Articles

Comparative field efficacy of biopesticides and insecticides for the management of brinjal shoot and fruit borer, Leucinodes orbonalis [Guenee

Comparative field efficacy of biopesticides and insecticides for the management of brinjal shoot and fruit borer, Leucinodes orbonalis [Guenee

Management of the Brinjal Shoot and Fruit Borer Leucinodes orbonalis (Guen.) through Newer Insecticides in Brinjal

Aims: This study aims to find out the most effective newer insecticides to control shoot and fruit borer in the brinjal.
 Study Design: The experiment of field was carried out with randomized block design.
 Place and Duration of Study: The field experiment on management of brinjal shoot and fruit borer Leucinodes orbonalis (Guen.) with newer insecticides were held on during October 2018 to April 2019 at Gwalior (Madhya Pradesh).
 Methodology: Infestation of shoot was observed from each plot by counting the total number of plants and the plants infested by shoot and fruit borer from the beginning of shoot formation. Total number of healthy fruits and infested fruits were counted from five plants of each plot at the time of fruit picking. The weight of both type of fruits (healthy and infested) were recorded to calculate the fruit infestation by weight basis. The treatments were applied from the initiation of infestation to till the complete harvest of the crop at 15 days interval regularly. The recorded data were subjected to statistical analysis after transformation. The count data also transformed and percentage were transformed to angular values.
 Results: The treatment of spinosad 45 SC and indoxacarb 14.5 SC1 (suspension concentrate) were found best among all treatments with 3.42 percent and 3.58 percent shoot infestation respectively and the treatments chlorantraniliprole 18.5 SC and flubendiamide 20 WG2 were found least effective with 4.69 percent and 4.78 percent infestation of shoot respectively. Treatments spinosad 45 SC and indoxacarb 14.5 SC were significantly reduced the 3.11 percent and 3.28 percent fruit infestation respectively. Whereas the treatments flubendiamide 20 WG (Water-Dispersible Granule) and chlorantraniliprole 18.5 SC were the least effective with 4.99 percent, 4.69 percent fruit infestation, respectively.
 Conclusion: Among all used treatments spinosad 45 SC and indoxacarb 18.5 SC, were the most effective treatments as they recorded higher yield and higher benefit cost ratio.

Evaluation of some bio-pesticides for eco-friendly management of brinjal shoot and fruit borer (Leucinodes orbonalis Guen.) in the northwest region of Bangladesh

Evaluation of some bio-pesticides for eco-friendly management of brinjal shoot and fruit borer (Leucinodes orbonalis Guen.) in the northwest region of Bangladesh

Bioefficacy, phytotoxicity and insecticide residue dynamics of chlorantraniliprole in brinjal (Solanum melongena) under field condition

Brinjal shoot and fruit borer (BSFB) (Leucinodes orbonalis (Gennadius)) causes significant economic harm to brinjal (Solanum melongena L.) production. The present study was carried out at research farm of ICAR-Indian Institute of Vegetable Research, Varanasi, Uttar Pradesh to standardize the optimum dose of chlorantraniliprole 18.5% sc (CAP) to manage BSFB under field conditions and to quantify the residue of CAP in brinjal for food safety. Three CAP doses (20, 40, and 80 g a.i./ha) along with an old generic insecticide (cypermethrin 25% ec @50 g a.i./ ha) as a check and an untreated control were examined during 2017–19. CAP applications of 40 and 80 g a.i./ha were similarly efficient against BSFB and resulted in a significantly higher yield of brinjal fruit. The population of borers was reduced significantly in the treatment, CAP @40 g a.i./ha as compared to the untreated control. Phytotoxic effects of chlorantraniliprole 18.5% sc were not observed. Natural enemies of the brinjal ecosystem, viz. predatory pentatomid bug [Eocanthecona furcellata (Wolff)], ladybird beetle [Coccinella septempunctata (Linn.)], and spider were unaffected by CAP treatment. When CAP was applied @40 and 80 g a.i./ha, chlorantraniliprole degraded from brinjal fruits with half-lives of 4.85 and 7 days, and pre-harvest intervals of 7 and 10 days were prescribed, respectively. Even at greater application doses, residues in a person's meals were found to be lower than the maximum permissible intake (24.96 mg/person/day) in day-zero samples. Chlorantraniliprole @40 g a.i./ha can be an effective alternative to the conventional insecticides against BSFB in brinjal, ensuring quality, sustainability, and safety.

FIELD EFFICACY STUDY OF DIFFERENT BIORATIONALS AND INSECTICIDES AGAINST BRINJAL SHOOT AND FRUIT BORER (Leucinodes orbonalis Guenee) UNDER TERAI REGION OF WEST BENGAL

At the Uttar Banga Krishi Viswavidyalaya's teaching farm, field tests were conducted on brinjal during the rabi seasons of 2018–2019 and 2019–2020 to assess the field efficacy of seven biorationals and insecticides against Leucinodes orbonalis Guenee, which infests brinjal (Solanum melongena L.). Results showed that Chlorantraniliprole 18.5 SC, Flubendiamide 39.35 SC, and Novaluron 5.25% + Emamectin Benzoate 0.9% SC were the most successful treatments in terms of lowest shoot infestation (2.24-6.05%) and fruit infestation (number basis: 11.01-13.29% and weight basis: 11.94-15.75%). Bacillus thuringiensis var. kurstaki and Chlorantraniliprole 18.5 SC both produced the highest commercial fruit yields, ranging from 13.54 to 14.54 t/ha and 14.11 to 14.51 t/ha, respectively. Azadirachtin 50,000 ppm was found to be the least effective compound against brinjal shoot and fruit borer.

Effect of temperature and BSFB population on the growth and yield of Brinjal

Brinjal shoot and fruit borer (BSFB) leucinodes orbonalis is very persist insect. The experiment on brinjal shoot and foot borer (BSFB) in brinjal was conducted from 5th July to 30th October in Bangabandhu Sheikh Mujibur Rahman Agriculture university, Gazipur. The results indicated that the number of BSFB adult was higher in the vegetative stage than the reproductive stages, among the reproductive stages; late fruiting stage encountered the maximum mean number of BSFB adults (5). The population of BSFB adult is highly correlated with temperature. A correlation between the number of BSFB adults and the rate of infestation in shoots or fruits was found. This correlation indicated that for each individual adult caught BSFB 4.70% shoot and 4.123% fruit infestation by number and 6.4% fruit infestation by weight. Percent fruit infestation both by number and weight and the daily temperature are positively correlated, which is indicated by the correlation coefficient of 0.7030 by number and 0.56 by weight. Similar effects of higher temperature on the population increase and increased activity of many insect pests including BSFB have been reported.

Biorational Based IPM Module for the Management of Shoot and Fruit Borer, Leucinodes Orbonalis in Brinjal

The present investigation was undertaken to evaluate the integrated pest management module against L.orbonalis in brinjal under field conditions. The brinjal fruit obtained Salem district is being sell to other states. Due to this massive requirement, farmers have a tendency to spray a higher number of pesticidal sprays to thwart slight damage or bore hole due to L.orbonalis. Crop damage produced by brinjal shoot and fruit borer was evaluated on the basis of damaged shoot and fruits separately. In order to assess the per cent shoot damage, the damaged shoots on five randomly selected tagged plants were counted as against total available shoots on the observed plants. In present study, Kharif and Rabi season recorded highest fruit yield of 288.71 and 307.50 quintals/ha and favorable cost benefit ratio of 1:2.07 and 1: 2.03 was recorded in IPM module plot respectively.

Refinement of different combinations of (Brinjal Shoot and Fruit Borer) in Brinjal

BSFB (Brinjal shoot and fruit borer) Lesinoides orbonalis is the most destructive insect for brinjal production. It reduces the value of market price. The experiment comprised eight (8) treatments including one untreated plot. The treatments comprised different rational combinations of mechanical control involving collection and destruction of infested plant parts, use of sex pheromone trap in the centre of the plot and at the canopy level and judicious application of Marshal 20 EC @ 2ml per litter of water based on adult monitoring or routine spray. The treatments differed among themselves in efficacy, and treatment that comprised pheromone trap placed at the plant canopy + mechanical control + spray of Marshal 20 EC @ 2ml per litter of water 2 days interval just from the flowering was adjudged showed significantly lower fruit infestation (different fruiting stage 6.43%, 13.70%, 8.90% respectively) compared to other treatments. Among all the treatment T3 (pheromone trap placed at the plant canopy + mechanical control + spray of Marshal 20 EC @ 2ml per litter of water 2 days interval just from the flowering) was the best option. This treatment also provided the highest benefit cost ratio (2.09) among all the treatments.

FIELD SCREENING OF BRINJAL ACCESSIONS FOR RESISTANCE AGAINST BRINJAL SHOOT AND FRUIT BORER, Leucinodes orbonalis (Lepidoptera: Guenee)

Resistance potential of 100 brinjal accessions against brinjal shoot and fruit borer (BSFB) was evaluated under field condition at Sivapuri village, Chidambaram, Tamil Nadu, India in Kharif 2020. The data obtained from this study revealed that amongst the 100 accessions screened, the lowest shoot and fruit damage was observed on the genotype IC-136546 followed by IC-136451 whereas, the highest shoot and fruit damage was observed on Manapaarai Local followed by IC-089847. Based on the standard scale, none of the accessions show immune response to BSFB. Hence, the accessions which imparted resistance against the BSFB were selected for breeding to develop BSFB resistance varieties.

Impact of Front Line Demonstration on Integrated Management of Brinjal Shoot and Fruit Borer (Leucinodes orbonalis Guenee) in Nagarkurnool District, Telangana state

The front line demonstrations were organised in 30 farmers fields during 2017–2020 in Nagarkurnool district. The IPM strategy included clipping and disposal of infested shoots, removal of fruits with boreholes, installation of pheromone traps @ 25 ha-1, spraying of Bacillus thurinjiensis @ 1 g l-1 and Emamectin benzoate 5% SG @ 0.4 g l-1. The mean of the parameters in 30 demonstrations during three years (pooled) revealed that shoot and fruit borer damage at a vegetative phase as shoot damage was 18.29% in demo field and 29.92% in farmers practice. Fruit damage was recorded low 23.02% in the demo field while in farmer’s practice it was 47.37%. Higher marketable fruit yield was recorded 274 q ha-1 in demo field and 17.6% yield increased over farmers practice (233 q ha-1) with benefit Cost Ratio of 2.97:1 and 2.11:1, respectively. Besides this, number of pesticide sprayings reduced significantly in the demo field (5.2 times) when compared to farmers practice (13.13 times). It is also observed that higher gross returns (` 264700 ha-1) and net returns (` 201806 ha-1) were recorded in the demo field than farmer’s practice (` 264700 and ` 131496, respectively). The technology gap and extension gap enumerated from this study ranged 252-367.5q ha-1 and 28.5-63.81 q ha-1 respectively with the technology index of 54% during demonstration years. The results clearly showed that the positive impact of front-line demonstrations over farmer’s practice towards increasing the productivity and reduce the cost of cultivation of Brinjal in Nagarkurnool dist. of Telangana State.

English

Brinjal shoot and fruit borer, Leucinodes orbonalis Guenee is a major pest. The frequent use of toxic chemical insecticides ultimately poses a problem due to pollution of the environment, health hazards, and adverse effects on beneficial organisms. Hence, the current researches looked into the efficacy of various botanicals against brinjal pests. This experiment was carried out to see how ethyl acetate and methanol extracts of grinded seeds of Ricinus communis, Abroma augusta, and Bombax ceiba affected the growth of brinjal shoots and fruit borers. Among the three plant extracts of ethyl acetate, 100% of R. communis and A. augusta extracts controlled 100% borers after 72 h of administration, 50 and 25% of R. communis extract controlled 100% borers after 72 and 96 h of administration. In the case of methanolic extracts, 100% of A. augusta extract controlled 100% borers after 72 h of administration, and 50 and 25% of R. communis extract controlled 100% borers after 72 and 84 h of treatment, respectively. When compared with the other two botanical extracts, R. communis seed extract performed the best against the pest attack. A. augusta and B. ceiba seed extract showed moderate efficacy against those pests. Key words: Crude extract, brinjal pest, insecticides, botanicals, pest control, ethyl acetate, methanol extracts.

Evaluation of Resistant Genotype Against Brinjal Shoot and Fruit Borer (Leucinodesorbonalis Guenee)

Brinjal shoot and fruit borer (BSFB), Leucinodesorbonalis Guenee, is a devastating pest of brinjal (Solanummelongena L.) in all brinjal growing countries across the globe. Ten genotypes of brinjal were evaluated against the pest in experimental field of Khulna University, Bangladesh following arandomized block design with three replications. The genotypes were BARI Hybrid Begun-2, BARI Hybrid Begun-4, BARI BT-4, Begun-4, BARI Begun-9 and BARI Begun-10, Local Cultivar-1, Local Cultivar-2, Local Cultivar- 3, Local Cultivar-4 and BARI Begun-4among the ten brinjal genotypes, reduced shoot and fruit infestation were recorded in local cultivar-1 and BARI Begun 2. On degree of infestation, BARI hybrid BT begun 4 appeared to be resistant while rest of the genotypes were susceptible or highly susceptible. Volume index was documented to be high in BARI hybrid Begun 4 and low in local cultivar 3, while shape index was high in cultivar 2 and low in BARI hybrid begun 4 and BARI Begun-10. BARI Hybrid Begun 4 possessed greater meso and pericarp thickness although those were not resistant. Above all, using resistant genotypes of BARI hybrid BT begun 4 may be considered as a last resort inan optimized IPM package to ensure maximum brinjal productivity.
 Bangladesh Agron. J. 2021, 24(2): 21-30

Novel Molecules Targeted Control of Brinjal Shoot and Fruit Borer, Leucinodes orbonalis in Subtropical Conditions of Punjab (India)

Brinjal shoot and fruit borer, Leucinodes orbonalis (Guenee) (Lepidoptera: Crambidae), is one of the most dreaded pests of brinal crop worldwide and the annual crop losses are estimated to the extent of around Rs. 2,000 crores. The trials were conducted to manage this pest at Entomological Research Farm, PAU, Ludhiana and at farmers fields of districts Ludhiana and Gurdaspur, Punjab during 2014–17. Different doses of chlorantraniliprole (18.5 SL) and emamectin benzoate (5 SG) were evaluated against brinjal shoot and fruit borer and compared with the existing recommended insecticide, triazophos (40 EC). The tested molecules were found highly effective against brinjal shoot and fruit borer and reduction in fruit infestation ranged from 53.2–84.1% after 10 days of 2nd spray. Similarly, the significant higher yields (313.1–325.5 q ha−1) were recorded in treated plot as compared to untreated control (307.3 q ha−1).

Influence of abiotic and biotic factors on seasonal abundance of brinjal shoot and fruit borer, Leucinodes orbonalis Guenee

A field experiment was carried out to investigate the influence of abiotic and biotic factors on seasonal abundance of brinjal shoot and fruit borer in brinjal crop during Kharif season. The infestation of brinjal shoot and fruit borer on shoots of brinjal reached to its peak in the second week of September, whereas, infestation on fruits of brinjal reached to its peak in the third week of October during both the years. The infestation of L. orbonalis on brinjal shoots had significant positive correlation with maximum temperature during both the years. The total rainfall had non-significant correlation and significant negative correlation with infestation of L. orbonalis on brinjal shoot during 2019 and 2020, respectively. Whereas, the infestation of L. orbonalis on fruits of brinjal had significant positive correlation with maximum temperature during both the years. The fruit infestation had non-significant negative correlation with average relative humidity during 2019, while, and contrary to this it had significant negative correlation during 2020. The population of braconids had significant positive correlate with infestation caused by L. orbonalis during both the years.

Toxicity of insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis (Guenee) (Pyraustidae: Lepidoptera)

Toxicity of insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis (Guenee) (Pyraustidae: Lepidoptera)

MANAGEMENT OF BRINJAL SHOOT AND FRUIT BORER USING EXCLUSION NETS

The brinjal shoot and fruit borer, Leucinodes orbonalis is one of the most serious pests of the brinjal crop in Bangladesh and causes damage up to 90% yield loss. It is very difficult to control. An experiment was conducted at the Entomology Field Laboratory, Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh from December 2020 to April 2021 on the management of Brinjal Shoot and Fruit Borer (BSFB) using three colored exclusion nets, viz., white, blue, and yellow, along with an untreated control. Brinjal, specifically the Singnath variety, was used as an experimental crop. The experiment was laid out in a Randomized Complete Block Design (BCBD) with three replications of each treatment. The effectiveness of three exclusion nets was evaluated based on the following parameters: plant height (cm), number of healthy and infested shoots and fruit, percent protection of shoot and fruit over control, length and diameter of healthy and infested fruit, yield attributes, and benefit cost ratio (BCR). The results clearly indicated that these mentioned parameters were highly significant with the application of different colored exclusion nets. From the results, the white net showed the greatest reduction of shoot (50.51%) and fruit (65.58%) infestation over control, the highest percentage of shoot (20.55%) and fruit (25.92%) infestation, the minimum number of infested shoots (14.00) and fruits (28.54), plant height (46.34cm), and the maximum length (21.67cm) and diameter (10.07cm) of healthy fruit and returned the highest yield (24.55 t/ha), percentage increase of yield (56.70%) and benefit cost ratio (2.15) compared to other tested exclusion nets. And then, this result was followed by blue and yellow, respectively. Hence, white-colored net could be recommended as the best exclusion net for the sustainable management of BFSB in the field.

Field efficacy of different biorationals and insecticides against brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) under terai region of West Bengal

Field efficacy of different biorationals and insecticides against brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) under terai region of West Bengal

Evaluation of botanicals against brinjal shoot and fruit borer (Leucinodes orbonalis) in vitro.

Evaluation of botanicals against brinjal shoot and fruit borer (Leucinodes orbonalis) in vitro.

Studies on biology and morphometrics of brinjal shoot and fruit borer (Leucinodes orbonalis)

Studies on biology and morphometrics of brinjal shoot and fruit borer (Leucinodes orbonalis)

Influence of meteorological parameters on population build-up of brinjal shoot and fruit borer, Leucinodes orbonalis Guenee in Assam

Influence of meteorological parameters on population build-up of brinjal shoot and fruit borer, Leucinodes orbonalis Guenee in Assam