Determination of the best IPM strategy to manage the Lepidoptera complex on callaloo in two major agroecological zones and seasons in Jamaica


Project Code:
Not Available

Start Date:

End Date:

CRSP Phase:
Phase 2

Not Available



Lead University:

Other Partners:
Caribbean Agricultural Research and Development Institute CARDI (Trinidad), Rural Agricultural Development Authority (RADA) (Jamaica); Penn State University, Ohio State University (US)

Principal Investigator(s):

Co-Principal Investigator(s):
Dionne Clarke-Harris, F. D. McDonald (CARDI), Shelby J. Fleischer (Pennsylvania State University), Clive Edwards (Ohio State University), Phillip Chung (RADA)


This activity focused on minimizing the use of production systems by identifying non-chemical methods that can be used to control callalloo pests.


1. Integrate a scouting system in the control programs for callaloo pests. 2. Integrate exclusion tactics in control programs in callaloo production 3. Select and evaluate more effective, safer pesticides for controlling major pests of callaloo 4. Develop protocols that would ensure freedom from contamination due to arthropod pests and pesticide residue in callaloo produced in selected areas 5. Develop protocols to assist in putting callaloo back on the preclearance list


1. Exclusion and biorationals using a threshold-based spray application guide,the use of which gave significantly improved protection of the crop from insect damage when compared to the farmer practices. 2. Exclusion plots can be a pesticide-free system giving the product a competitive advantage which could fetch a higher price. 3. Exclusion as a management option can be maintained without the use of pesticides. However other compatible non-chemical tactics would enhance the system (sticky traps, soaps and oils and biopesticides) 4. The threshold-based sampling plan demonstrated the potential to reduce frequency of pesticide applications by 46%-92%. 5. The research model for high pesticide input vegetable systems which was developed on vegetable amaranth in Jamaica was explained to nine researchers from Barbados, Trinidad and Tobago

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