Discovering allatostatin type-C receptor specific agonists.

Area of Science:

• Entomology
• Pesticide Development
• Computational Biology

Background:

• Pine processionary moth outbreaks are increasing due to climate change, impacting forests and public health.
• Current control methods for Thaumetopoea pityocampa are non-specific or mechanical.
• There is a need for targeted insecticides to manage this pest effectively.

Purpose of the Study:

• To identify a T. pityocampa-specific pesticide targeting the Allatostatin Type-C Receptor (AlstR-C).
• To develop a novel insecticide with minimal off-target effects.
• To advance next-generation pesticide design using insect GPCR targets.

Main Methods:

• Utilized computational biology for target identification.
• Employed cell-based screening assays to find AlstR-C ligands.
• Conducted in vivo toxicity and side effect assays for specificity and safety.

Main Results:

• Identified a series of AlstR-C ligands as potential T. pityocampa-specific insecticides.
• Demonstrated specificity of the novel agonists to lepidopteran larvae.
• Confirmed no harmful effects on coleopteran larvae or adults.

Conclusions:

• This study presents the first AlstR-C targeted pesticide for T. pityocampa.
• The developed agonists offer a selective and potentially safer alternative to current pest control methods.
• The approach is applicable to other invertebrate GPCR-targeted pesticide development.