Biocontrol Science and Technology (2000) 10, 617-625

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J. Ballard, D.J. Ellis and C.C. Payne (2000)
Uptake of granulovirus from the surface of apples and leaves by first instar larvae of the codling moth Cydia pomonella L. (Lepidoptera : Olethreutidae)
Biocontrol Science and Technology 10 (5), 617-625
Abstract: Cydia pomonella granulovirus (CpGV) has received considerable attention as a potential microbial insecticide for the control of the codling moth (Cydia pomonella L.), a worldwide pest of apples. Laboratory experiments were established to investigate virus uptake by first instar larvae, using a novel leaf disc bioassay technique. Virus uptake was found to be independent of active feeding and larvae became infected simply by walking or browsing on sprayed leaf disc surfaces in as little time as 3.5 min. Infection increased as a function of time spent on the leaf disc surface and a linear log time/probit mortality relationship could be fitted. The bioassay technique used has potential for the realistic laboratory testing of virus spray formulations. A field experiment showed that virus infection could be contracted by newly hatched codling moth larvae both from the surface of sprayed leaves and sprayed fruit. The potential for exploiting this knowledge for improving spray formulations is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website


Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
transmission/dispersal


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Cydia pomonella
Cydia pomonella granulovirus (entomopathogen) Cydia pomonella