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United States Department of Agriculture

Agricultural Research Service

Related Topics

Research Project: Targeting the Asian Citrus Psyllid (Ascp) Feeding Mechansim As a Means of Blocking Psylllid Feeding on Citrus

Location: Subtropical Insects and Horticulture Research

2013 Annual Report

1a.Objectives (from AD-416):
Develop Asian citrus psyllid control strategy based on inhibition of crucial psyllid feeding processes used to locate the phloem tissue.

1b.Approach (from AD-416):
Use artificial diet for the Asian citrus psyllid (AsCP) to study molecular mechanism of highly specialized feeding process of the AsCP. Analysis will be through protein and genomic studies targeting the salivary glands and secreted salivary proteins. Use artificial diets to screen for chemicals/transgenic strategies that will inhibit the AsCP ability to form salivary sheaths that are needed for successful phloem feeding.

3.Progress Report:

This project is related to Objective 3b: Develop novel control methods based on disrupting key processes in pest biology.

Proteins that block salivary sheath formation have been identified and used in topical applications studies to citrus leaves. These applications prevented subsequent Asian citrus psyllid feeding on these leaves. An invention disclosure was submitted on this and accepted by the patent review board. The patent is currently being written.

Last Modified: 3/2/2015
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