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

The 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:...

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Bibliographic Details
Published inCanadian entomologist Vol. 149; no. 3; pp. 399 - 407
Main Authors Shirale, Dattatray, Patil, Meena, Parimi, Srinivas
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.06.2017
Subjects
Agrochemicals
Assaying
Bioassays
Borers
Carbaryl
Cotton
Crambidae
Deltamethrin
Eggs
Endosulfan
Entomology
Fenvalerate
Fruits
Helicoverpa armigera
Horticulture
Insect Management
Insecticide resistance
Insecticides
Laboratories
Larvae
Lepidoptera
Leucinodes orbonalis
Mortality causes
Pesticide resistance
Pesticides
Plant resistance
Populations
R&D
Ratios
Regions
Research & development
Solanum melongena
Spodoptera litura
Toxicity tests
Zoology
Bangladesh
United States > US
India
South Asia
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Summary:The 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.
ISSN:0008-347X
1918-3240
DOI:10.4039/tce.2017.3