Effects of pirimicarb, buprofezin and pymetrozine on survival, development and reproduction of Coccinella undecimpunctata (Coleoptera: Coccinellidae)

The effects of pirimicarb (a neurotoxin), buprofezin (an insect growth regulator) and pymetrozine (an antifeedant) on Coccinella undecimpunctata were assessed by studying the survival and development of all immature stages and the survival and reproductive performance of adults. Insecticides were sp...

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Bibliographic Details
Published in:Biocontrol science and technology 2008, Vol.18 (3-4), p.307-318
Main Authors: Cabral, S, Garcia, P, Soares, A.O
Format: Article
Language:English
Subjects:
adverse effects
Aphididae
application rate
biological control
biological control agents
buprofezin
buprofezin pirimicarb
Coccinella undecimpunctata
Coccinella undecimpunctata L
Coccinellidae
Coleoptera
fecundity
insect development
insect reproduction
insecticides
integrated pest management
IPM
larvae
mortality
natural enemies
nontarget organisms
ova
pirimicarb
predatory insects
pymetrozine
side-effects
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Summary:The effects of pirimicarb (a neurotoxin), buprofezin (an insect growth regulator) and pymetrozine (an antifeedant) on Coccinella undecimpunctata were assessed by studying the survival and development of all immature stages and the survival and reproductive performance of adults. Insecticides were sprayed at doses recommended by the manufacturers for the control of aphids and/or whiteflies. None of the three insecticides had a significant effect on the survival of C. undecimpunctata eggs. When sprayed on larvae, buprofezin significantly reduced survival to adulthood to 45% for the control and other insecticide treatments. Rates of adult survival, fecundity, and fertility, and the percentage of egg hatch, were not significantly different between control and insecticide treatments. Thus, larval stages were more susceptible to insecticides than were adults. In general, pirimicarb and pymetrozine had no adverse effects on immature or adult stages of C. undecimpunctata, and hence are suitable for IPM of sucking pests.
ISSN:0958-3157
1360-0478
DOI:10.1080/09583150801902072