Field efficacy of some new insecticides against brinjal shoot and fruit borer, Leucinodes orbonalis (Guen.) (Lepidoptera: Pyralidae) and their toxic effects on natural enemies (original) (raw)
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Journal of entomology and zoology studies, 2020
The studied data of shoot and fruit borer shows that, results were statistically superior over control in suppression of shoot damage caused by shoot borer. Lowest shoot infestation was recorded in treatment spinosad 0.01% (12.13%). The other effective treatments in minimizing the percentage damage of shoot borer were listed in descending order as emamectin benzoate 0.002% (15.05%) > cypermethrin 0.005% (17.19%) > imidacloprid 0.025% (21.95%) I > Metarrhizium anisopliae 1 lit/ha (23.16%) > B. Bassiana 1 lit/ha (24.88%) > Azadirachtin 2.5 ml ml/lit (24.88%) > mechanical shoot clipping (27.10%) respectively, these treatments were found superior over control (water spray) recording highest shoot infestation (36.60%) and for the fruit borer The next effective treatments in minimizing the percentage of fruit borer are listed in descending order as emamectin benzoate 0.002% (16.57%) > cypermethrin 0.005% (18.70%) > imidacloprid 0.025% (22.06%) > Metarrhizium ani...
Msc Work on Brinjal - Journal of Survey in Fisheries Sciences , 2023
During Kharif 2022, an experiment was carried out in the brinjal field (Cultivar- Makra) at the Central Research Farm of Bidhan Chandra Krishi Viswavidyalaya, Gayeshpur, Nadia, West Bengal, to investigate the field efficiency of several pesticides against the brinjal shoot and fruit borer. Nine treatments (including control) i.e., Diflubenzuron+Deltamethrin 20% WP + 2% SC @ 2.25 ml/3L, Spinosad 45 SC @ 0.1ml/3L, Indoxacarb 14.5 SC @ 0.3 ml/3L, Diflubenzuron 25% WP @ 2.4 ml/3L, Deltamethrin 2.8% EC @ 2.13 ml/3L, Cypermethrin+Quinalphos 3%+20% EC @ 3.6 ml/3L, Deltamethrin+Triazophos 1% WP+35% EC @ 7.5 ml/3L, Emamectin Benzoate 5 SG @ 0.20 ml/3L were imposed with three replications in RBD. All the insecticidal treatments were significantly superior to the untreated control. Spinosad 45 SC was discovered to be the best-performing pesticide treatment against shoot and fruit borer with the lowest percentage of fruit loss (10.04%). Deltamethrin 2.8% EC was the poorest effective treatment when compared to the other treatments because it generated the highest fruit destruction (13.88%). In terms of yield Spinosad 45 SC performed well than all other treatments (227.05 q/ha) and Deltamethrin 2.8% EC was the lowest (176.10 q/ha).
Management of Brinjal Shoot and Fruit Borer, Leucinodes orbonalis Guenee, with Selected Insecticides
Brinjal shoot and fruit borer (BSFB), Leucinodes orbonalis Guenee is a serious insect pest of brinjal (Solanum melongena L.) in all brinjal growing countries. It is the most important pest in Asia, including Pakistan. Different insecticides were evaluated for the control of BSFB in a field study at Sahiwal, Pakistan during spring and fall sowing seasons. The study was carried out using Nirala variety of brinjal. Transplanting of nursery was done in the field on March 11 and August 15, 2012 for spring and fall seasons crop, respectively. The experiment was laid out in a Randomized Complete Block Design having four replications. Each plot had four rows at 50.0 cm spacing and plant to plant spacing was 30.0 cm. Insecticides used were spinosad (Tracer 240SC), flubendiamide (Belt 48 SC), emamectin benzoate (Timer 1.9EC), bifenthrin (Talstar 10EC), spinetoram (Delegate 25WG) and chlorantraneiliprole (Coragen 20SC). Insecticides were sprayed on April 2, 17 and May 2 for spring sown crop and on September 3, 18 and October 4 for fall sown crop. All infested fruits were picked from plots one day before insecticide application. Infected shoots were marked by tying a ribbon to all drooping shoots one day before spray. Fruit and shoot infestations were recorded seven and 14 days after insecticide application from plants in the middle two rows of each plot. All treatments reduced shoot and fruit infestation significantly as compared to the control. However, flubendiamide (Belt 48SC) and emamectin benzoate (Timer 1.9EC) treated plots had the least shoot infestation. For control of the borer in fruits, spinosad (Tracer 240SC) proved to be the most effective insecticide.
Field experiments were conducted during Kharif-2009 and 2010 to evaluate the efficacy of new generation insecticides against brinjal fruit and shoot borer, Leucinodes orbonalis (Guenee). The new generation insecticides used in this study included Chlorantraniliprole 18.50% SC (Coragen), Flubendamide 39.35% SC (Fame), Indoxacarb 14.50% SC (Avaunt), Chlorfenapyr 10% SC (Intrepid) and Spinosad 45% SC (Spintor). Observations on shoot damage and fruit damage were recorded at regular intervals and insecticide sprays were done based on economic threshold level. The lowest fruit damage was recorded in the plots sprayed with Coragen in 2009 and 2010. Chlorantraniliprole 18.50% SC and Flubendamide 39.35% SC proved their superiority over other insecticides in reducing infestation of L. orbonalis and resulted in higher yields.
The Pharma Innovation Journal, 2021
The present investigation was carried out during the Kharif season, 2017-18 at Student's Instructional Farm, N.D. University of Agriculture and Technology, Kumarganj, Faizabad (U.P) to study the efficacy of bio-insecticides and botanicals against brinjal shoot and fruit borer (Leucinodes orbonalis Guenee). The bio-insecticides and botanicals tested were: Emamectin benzoate 5 SG @ 75 g a.i/ha, Spinosad 45 SL @ 18 g a.i/ha, NSKE 5%, Karanj seed extract 5%, Onion extract 5%, Garlic extract 5%, Tobacco extract 5%, Cannabis (bhang) leaf extract 5%, Wood ash 10 g/ plant and compared with control. Results showed that Emamectin benzoate 5 SG (75 g a.i/ha) treated plots showed lowest infestation and gave higher fruit yield (313.85 q/ha) followed by Spinosad 45 SL (18 g a.i/ha) and NSKE (5%) which gave 300.58 and 284.33 q/ha fruit yield respectively. The least effective treatment was Wood ash (10 g/plant) and yielded only 225.14 q/ha healthy fruits. The maximum cost-benefit ratio was obtained from Emamectin benzoate 5 SG 75 g a.i/ha (1:21.23) treated plots. Tobacco leaf extract 5% treated plots though ecofriendly but gave least cost-benefit ratio (1:1.27). This study recommends the use of bioinsecticides and botanicals as they are significantly efficient in managing the brinjal shoot and fruit borer infestation.
An experiment was undertaken to know the effectiveness of different biorational insecticides for controlling brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) under field conditions during winter season 2017-18. The different treatments were Bioneem 1% EC (Azadirachtin 1000 ppm @ 1 mL L −1 (T1) Noclaim 5 SG (Emamectin benzoate) @ 1 mL L −1 (T2), Tracer 45 SC (Spinosad) @ 0.4 mL L −1 (T3), Suntec 1.8 EC (Abamectin) @ 1.2 mL L −1 (T4) and untreated control (T5). The results revealed that the treatments Spinosad (T3), Abamectin (T4) and Emamectin benzoate (T2) were effective to suppress brinjal shoot and fruit borer infestation in brinjal field. The rate of shoot infestation was observed 6.25% and 26.01% in Spinosad (T3) treated and control plot, respectively. The lowest fruit infestation (6.98%) by number and (9.32%) by weight was recorded in Spinosad (T3) treated plot. Reduction rate of fruit infestation over control was 82.82, 51.19, 41.15 and 38.17% by number and 66.11, 43.75, 33.13 and 24.44% by weight in Spinosad (T3), Emamectin benzoate (T2), Abamectin (T4) and Azadirachtin (T1), treated plot, respectively. The yield in different treatments ranged between 22.02 and 32.52 t ha −1 . Healthy fruits yield increase over control varied from 19.36 to 85.46%, where the highest increase was found in Spinosad (T3) treated plot and the lowest in Azadirachtin (T1). The highest adjusted net return and benefit-cost ratio (BCR) of Tk. 2,61,564 and 11.08, respectively were obtained from Spinosad (T3) treated plot. The lowest BCR was 2.66 in Azadirachtin (T1) treated plot. Among the four bio-rational inecticides Tracer 45 SC (Spinosad) showed the highest efficacy and it could be used against brinjal shoot and fruit borer in brinjal production.
Pakistan Entomologist, 2017
Brinjal is one of the important vegetable of world. It is smooth shiny skinned deep purple fruit and considered as staple vegetable. It accumulates vitamin A & D and minerals like calcium, phosphorus, potassium, sulphur, iron, iodine and copper. Brinjal shoot and fruit borer (Leucinodes orbonalis Guenee) is one of major chewing insect pest of brinjal and its infestation cause severe losses to this crop. In Pakistan farmers mostly rely on the chemicals to control pests. In the present study the efficacy of some new chemistry insecticides was evaluated against brinjal shoot and fruit borer. The experiment was conducted by using fruit dip method against 1st instar larvae. The results revealed that flubendamide was most effective insecticide among all the tested insecticide with 87% mortality after 72 h of application while imidacloprid was the least effective. The finding of this research provides useful information regarding better management of BFSB in the field.
An attempt was made to evaluate the efficacy of novel insecticides against brinjal fruit borer, Leucinodes orbonalis at Student Instructional Farm of C.S.A.U.A&T., Kanpur, during Rabi season 2015-16 on var. Type-3. Among the various treatments like imidacloprid 17.8 SL @ 1.0 ml/lit., indoxacarb 14.5 SC @1.0 ml/lit., profenofos 50 EC @ 2.0 ml/lit., spinosad 45 SC @ 0.4 ml/lit., thiamethoxam 25 WG @ 0.1 gm/lit., acephate 75 SP @ 0.7 gm/lit. and untreated control, among them imidacloprid 17.8 SL was found most effective in reducing the mean shoot infestation and fruit infestation followed by indoxacarb 14.5 SC, profenofos 50 EC, spinosad 45 SC, thiamethoxam 25% WG and acephate 75 SP.