Do green lacewings ('Mallada signata') add mortality of 'Helicoverpa armigera' on transgenic Bt cotton?

Title
Do green lacewings ('Mallada signata') add mortality of 'Helicoverpa armigera' on transgenic Bt cotton?
Publication Date
2009
Author(s)
Bahar, Md Habibullah
Stanley, John
Gregg, Peter
( author )
OrcID: https://orcid.org/0000-0001-7534-3567
Email: pgregg@une.edu.au
UNE Id une-id:pgregg
del Socorro, Alice
Type of document
Conference Publication
Language
en
Entity Type
Publication
Publisher
Entomological Society of Canada
Place of publication
Ottawa, Canada
UNE publication id
une:9085
Abstract
Experiments were done to study the compatibility of a general predator, a green lacewing, to control 'Helicoverpa armigera' eggs and larvae with transgenic Bt cotton. Bt cotton did not affect green lacewing performance. Green lacewings consumed statistically identical numbers of 'Helicoverpa' eggs and larvae on both Bt and conventional cotton plants. On Bt cotton plants 83% of the 'H. armigera' larvae died within 72 hours. Mortality increased to 98% when lacewing larvae were present. This 'mopping-up' of surviving 'Helicoverpa' on Bt cotton by lacewing larvae has the potential to reduce immediate pest damage but perhaps more importantly remove potentially Bt-resistant genotypes.
Link
Citation
ESCM 2009 Program and Abstracts, p. 37-37
Start page
37
End page
37

Files:

NameSizeformatDescriptionLink