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Relative toxicity and insecticide resistance of different field population of tomato leaf miner, Tuta absoluta (Meyrick)

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Title Relative toxicity and insecticide resistance of different field population of tomato leaf miner, Tuta absoluta (Meyrick)
Not Available
 
Creator N. R. Prasannakumar
N. Jyothi
S. Saroja
G. Ram Kumar
 
Subject Insecticide resistance . SouthAmerican tomatomoth . Tomato pinworm . Bioassay . Cytochrome P450 . Esterase
 
Description Not Available
South American tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), is an oligophagous insect pest that infests
solanaceous crops like tomato, brinjal and potato. The incidence of T. absoluta could cause significant yield losses of up to 100%
on tomato crop and therefore farmers are following chemical management practices to tackle the pest. However, continuous and
indiscriminate usage of certain insecticides may lead to development of resistance in T. absoluta. The aim of the study therefore
was to know the level of resistance to different commonly used insecticides viz., indoxacarb14.5SC, flubendiamide 39.35SC,
emamectin benzoate 5SG, spinosad 45SC, spinetoram 11.1SC and cyantraniliprole 10.25SC from different field population of
T. absoluta viz., Bangalore and Kolar districts ofKarnataka,Madurai and Salemdistricts of Tamil Nadu and Ananthpur district in
Andhra Pradesh, India. A variable level of susceptibility of different field population of T. absoluta was noticed against
frequently used insecticides viz. flubendiamide 39.35SC, cyantraniliprole 10.25SC and indoxacarb14.5SC. Biochemical
assays indicated a significant increase in cytochrome P450 monooxygenase and esterase level in all relatively resistant
population of T. absoluta. The cytochrome P450 monooxygenase and esterase enzymes therefore play a major role in the
development of resistance in field population of T. absoluta. The reduced susceptibility of T. absoluta to various field
collected population thus indicates a development of resistance to various insecticides necessitating the judicious use of
chemicals for its management
DST-SERB
 
Date 2021-07-19T07:34:34Z
2021-07-19T07:34:34Z
2020-10-11
 
Type Journal
 
Identifier N. R. Prasannakumar , N. Jyothi, S. Saroja, G. Ram Kumar
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/48704
 
Language English
 
Relation Not Available;
 
Publisher Springer