Bio-efficacy of some insecticides against fruit and shoot borer, Leucinodes orbonalis Guenee of brinjal and their effect on natural enemies

2021 ◽  
Vol 45 (1) ◽  
pp. 95-97
Author(s):  
Shalini Pandey ◽  
M.M. Sundria ◽  
H.K. Ameta
Keyword(s):  
Natural Enemies ◽  
Shoot Borer ◽  
Leucinodes Orbonalis

scholarly journals Management of Leucinodes Orbonalis Guenee on Eggplants During the Rainy Season in India

2011 ◽  
Vol 51 (4) ◽  
pp. 325-328 ◽  
Author(s):  
Sudarshan Chakraborti ◽  
Pijush Sarkar
Keyword(s):  
Natural Enemies ◽  
Active Ingredient ◽  
Rainy Season ◽  
Seed Kernel ◽  
Neem Seed ◽  
Emamectin Benzoate ◽  
Leucinodes Orbonalis ◽  
Untreated Check ◽  
New Generation ◽  
The Impact

Management of Leucinodes Orbonalis Guenee on Eggplants During the Rainy Season in India Leucinodes orbonalis Guenee (Pyraustidae: Lepidoptera) is a fruit and shoot borer which is the key pest of eggplant (also known as brinjal and aubergine). L. orbonalis causes broad-based problems in eggplant cultivation. An effort was made to control the borer during the Indian rainy season, as this is the time when the problem is at its worst. The impact of treatments on natural enemies as well as pollinators was also assessed. Integration of phytosanitation, mechanical control and prophylactic application of neem seed kernel extract (NSKE) exerted a satisfactory impact on the incidence and damage of L. orbonalis. After two need-based applications of new generation pesticide molecules like flubendiamide or rynaxypyr or emamectin benzoate, fairly good, healthy yields were produced. A ready-mix formulation (triazophos 40% + cypermethrin 4%), and carbofuran also offered good protection against the borer but both were found highly toxic and unsafe for predators i.e. predatory coccinellids and spiders and pollinating bees. Flubendiamide and rynaxypyr appeared comparatively more unsafe for bees than emamectin benzoate, while both allowed a substantial proportion of coccinellids and spiders to survive. Naturolyte, with the active ingredient emamectin benzoate, was found safe for predators and bees and on par with the untreated check.

scholarly journals EFFICACY OF COMMERCIAL INSECTICIDES AGAINST FRUIT AND SHOOT BORER, LEUCINODES ORBONALIS GUENEE OF BRINJAL, SOLANUM MELONGENA L. IN DHADING, NEPAL

2020 ◽  
Vol 1 (2) ◽  
pp. 61-65
Author(s):  
Sushma Paneru ◽  
Santosh Bharati ◽  
Sramika Rijal ◽  
Rajendra Regmi ◽  
Shailesh Pandit ◽  
...  
Keyword(s):  
Field Experiment ◽  
Block Design ◽  
Solanum Melongena ◽  
Field Conditions ◽  
Shoot Borer ◽  
Leucinodes Orbonalis ◽  
Damage Reduction ◽  
Fruit Damage ◽  
Shoot Damage

A study was conducted from January to June 2019 in Dhading district to identify the effective commercial insecticide against fruit and shoot borer of brinjal (Leucinodes orbonalis). A field experiment was conducted in Randomized Completely Block Design with five treatments (T1: Spinosad @ 1 ml/ 3 liters, T2: Chlorantraniliprole 1 ml/ 3 liters, T3: Cypermethrin 3 ml/ 1 liter, T4: Neem 3 ml/ 1 liter and T5: Control) and four replications. Result indicated that the fruit infestation percent and shoot damage reduction percent, fruit infestation reduction percent were highly significant with the application of insecticides. The shoot damage percent and fruit damage percent was the lowest with spinosad followed by chlorantraniliprole, cypermethrin and Neem. Thus, spinosad is the most effective insecticides for the management of fruit and shoot borer of brinjal in field conditions.

Bio-efficacy of Millettia pinnata oil soap in the suppression of brinjal fruit and shoot borer, Leucinodes orbonalis Guenee

ENTOMON ◽  
2021 ◽  
Vol 46 (1) ◽  
pp. 41-46
Author(s):  
P. Jeevitha ◽  
K. M. Sreekumar ◽  
B. Ramesha ◽  
C.K. Yamini Varma ◽  
N.K. Binitha
Keyword(s):  
Soap Solution ◽  
Neem Oil ◽  
Minimum Level ◽  
Shoot Borer ◽  
Leucinodes Orbonalis ◽  
Millettia Pinnata ◽  
Pongamia Oil ◽  
Fruit Damage ◽  
Chemical Pesticides ◽  
Pungam Oil

A field experiment to evaluate the efficacy of pungam (Millettia/Pongamia) oil soap at four different concentrations against brinjal fruit and shoot borer (BFSB), Leucinodes orbonalis Guenee and its effect on spiders of brinjal field revealed that application of 3% pungam oil soap brought down fruit damage to minimum level (12.94% on 7 days after third spray) followed by chlorantraniliprole 18.5% SC (0.3 mL/L), 2, 1 and 0.6% pungam oil soap and neem oil soap 0.6%. Efficacy of chlorantraniliprole persisted up to 14th day of spray followed by pungam oil soap. None of the botanical or chemical pesticides found to influence the spider population until seven days. After 14 days of application soap solution either alone or with pungam oil increased spiders over the control whereas 14 DAS it was minimum in standard check.

Insecticide resistance in field populations of Leucinodes orbonalis (Lepidoptera: Crambidae) in India

2017 ◽  
Vol 149 (3) ◽  
pp. 399-407 ◽  
Author(s):  
Dattatray Shirale ◽  
Meena Patil ◽  
Srinivas Parimi
Keyword(s):  
Insecticide Resistance ◽  
Solanum Melongena ◽  
Susceptible Strain ◽  
Field Strain ◽  
Shoot Borer ◽  
Leucinodes Orbonalis ◽  
The Status ◽  
Cropping Seasons ◽  
Lethal Dosage

AbstractThe status of insecticide resistance in field populations of eggplant fruit and shoot borer, Leucinodes orbonalis (Guenée) (Lepidoptera: Crambidae) from the major vegetable growing regions of India was determined during the cropping seasons of 2009–2010 and 2010–2011. Six commonly used insecticides: carbaryl, chlorpyriphos, deltamethrin, endosulfan, fenvalerate, and profenofos were tested against L. orbonalis larvae. The resistance ratios (RR) at the lethal dosage (LD)50 levels were estimated as RR=LD50 field strain/LD50 susceptible strain. The L. orbonalis populations exhibited widespread resistance to tested insecticides. The highest average RR in the two-year study was observed in the assays of populations with deltamethrin (21.50–82.42-fold) followed by assays conducted with endosulfan (24.47–68.26-fold), chlorpyriphos (22.17–63.14-fold), carbaryl (39.18–49.09-fold), and fenvalerate (14.00–44.66-fold); and the lowest average RRs were observed in the assays with profenofos (16.65–39.43-fold). The high levels of LD50 values can be attributed to the long-term indiscriminate use of these insecticides in eggplant (Solanum melongena Linnaeus; Solanaceae) growing regions.

scholarly journals Susceptibility of Field Populations of Eggplant Fruit and Shoot Borer (Leucinodes orbonalis Guenée) to Cry1Ac, the Protein Expressed in Bt Eggplant (Solanum melongena L.) in Bangladesh

Insects ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 198 ◽  
Author(s):  
Md. Zulfikar Haider Prodhan ◽  
Dattatray K. Shirale ◽  
Md. Zaherul Islam ◽  
Md. Jahangir Hossain ◽  
Vijay Paranjape ◽  
...  
Keyword(s):  
Management Strategy ◽  
Natural Variation ◽  
Inhibitory Concentration ◽  
Insect Pest ◽  
Resistance Management ◽  
Solanum Melongena ◽  
Shoot Borer ◽  
Leucinodes Orbonalis ◽  
Median Lethal Concentrations ◽  
Limited Basis

Eggplant (Solanum melongena Linn.), or brinjal, was engineered to express an insecticidal protein (Cry1Ac) from Bacillus thuringiensis (Bt) and commercialized in Bangladesh on a limited basis in 2014. As part of an insect resistance management strategy, studies were conducted to determine the susceptibility of the targeted insect pest, the eggplant fruit and shoot borer, Leucinodes orbonalis (Guenée), to Cry1Ac using a diet-incorporation bioassay method. Eighteen populations of L. orbonalis were collected from the main brinjal growing areas in 17 districts of Bangladesh during 2018–2019 and assayed. Larvae from each population were reared to adults and allowed to mate. Eggs from the matings were allowed to hatch, and neonates were used for bioassays. Bioassays were performed with different concentrations of Cry1Ac and an untreated control. Median lethal concentrations (LC50) ranged between 0.035 and 0.358 ppm and molt inhibitory concentration (MIC50) values ranged from 0.008 to 0.181 ppm. Variation in susceptibility among field populations was 10.22-fold for LC50 and 22.63-fold for MIC50. These results were compared to values from 73 populations in India. Overall, the results showed similar natural variation and suggest that these Bangladeshi values can be used as benchmarks for resistance monitoring as Bt brinjal becomes more widely adopted in Bangladesh.

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