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CpGV-M Replication in Type I Resistant Insects: Helper Virus and Order of Ingestion Are Important
Aurélie Hinsberger1, Christine Blachère-Lopez1,2, Caroline Knox3,4
1Hydrosciences Montpellier, Univ. Montpellier, IMT Mines Ales, IRD, CNRS, 6 Avenue de Clavières, 30319 Alès, France.
Viruses
|September 28, 2021
Summary
Understanding baculovirus genetic diversity is key to overcoming pesticide resistance. Multiple infections, influenced by ingestion order, enhance insect control, but virus interactions require further study.
Area of Science:
- Entomology
- Virology
- Pest Management
Background:
- Baculovirus genetic diversity offers sustainable pest control solutions against rising biopesticide resistance.
- Multiple baculovirus infections increase host mortality, but the underlying mechanisms remain unclear.
Purpose of the Study:
- Investigate the factors influencing successful multiple baculovirus infections in the codling moth, *Cydia pomonella*.
- Determine the roles of genotype ingestion order, delay, and specificity in overcoming insect resistance.
Main Methods:
- Studied interactions between *Cydia pomonella* granulovirus genotypes (CpGV-M, CpGV-R5) and *Cryptophlebia peltastica* nucleopolyhedrovirus (CrpeNPV).
- Manipulated the order and timing of virus genotype ingestion in *Cydia pomonella*.
Main Results:
- The order of baculovirus genotype ingestion is critical for achieving multiple infections in resistant insects.
- A delay between ingesting different genotypes does not significantly impact multiple infection success.
- CrpeNPV cannot facilitate CpGV-M replication, highlighting genotype-specific interactions.
Conclusions:
- Baculovirus genotype order is a crucial factor for effective pest control strategies involving multiple infections.
- Understanding specific baculovirus interactions is essential for developing robust biopesticide resistance management plans.
Keywords:
CpGVCrpeNPVCydia pomonellabaculovirusesmultiple infectionsresistance mechanismsresistance type IMore Related Videos
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