Record Details

Compatibility of Steinernema carpocapsae and Heterorhabditis indica with insecticides registered against Helicoverpa armigera (Lepidoptera: Noctuidae)

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Compatibility of Steinernema carpocapsae and Heterorhabditis indica with insecticides registered against Helicoverpa armigera (Lepidoptera: Noctuidae)
Not Available
 
Creator Devindrappa M.
Jagadeesh Patil
Manjunatha Gowda
Vijayakumar. R.
 
Subject Helicoverpa armigera
 
Description Not Available
The gram pod borer, Helicoverpa armigera (Lepidoptera: Noctuidae) is considered as a key pest of pigeonpea and is also a major polyphagous pest of several agricultural and horticultural crops in India. Combining chemical insecticides with Entomopathogenic Nematodes (EPNs) could be an effective alternative to reduce the use of harmful chemicals. Experiments were conducted to determine the compatibility of Steinernema carpocapsae and Heterorhabditis indica with registered insecticides used for H. armigera control in pigeon pea, under laboratory conditions. Compatibility of the insecticides with EPNs was evaluated by observing infective juveniles (IJs) survival and virulence of Galleria mellonella at 24 and 48 h after dipping in insecticide solutions. It was observed that, insecticides showed moderate effect on IJs survival. IJs were able to infect G. mellonella larvae after exposure to these chemicals, but their progeny production was significantly (P < 0.05) reduced. Both nematode species showed differential sensitivity to the tested insecticides, with H. indica exhibiting better tolerance than S. carpocapsae. The studies revealed that the chemicals showed a strong sub lethal effect on the nematode reproductive potential, limiting seriously their possible recycling in the field.
Not Available
 
Date 2020-06-12T05:30:38Z
2020-06-12T05:30:38Z
2017-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/37094
 
Language English
 
Relation Not Available;
 
Publisher Not Available