|Chu, Chang Chi|
Submitted to: Caribbean Food Crops Society Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 7/11/2005
Publication Date: 12/1/2005
Citation: Ciomperlik, M.A., Richards, M., Chu, C., Cohen, C. 2005. Field trials testing the efficacy of ‘cc traps’ for detecting and monitoring scirtothrips dorsalis (hood) in hot peppers in st. vincent.. Caribbean Food Crops Society Proceedings 41:161-165. Interpretive Summary: Tests of developed CC thirps traps on chili thrips (Scirtothrips dorsalis Hood) were conducted in wet season (2004) and dry season (2005) in St. Vincnet. Average weekly catches were low at 0.01-0.18 chili thrips per trap. Average weekly catches of a sticky card trap (blue, yellow and white) test in dry season were 19.8 chili thrips per 200 cm2.
Technical Abstract: Scirtothrips dorsalis Hood (Thysanoptera: Thripidae) is a newly identified invasive pest to the Caribbean, and poses a significant threat to agriculture and trade in the region. Methods are needed to detect the presence and to monitor populations of this pest so that they can be effectively managed. Studies were initiated during the wet season in 2004 and continued in the dry season of 2005 to test ‘CC’ traps designed for detecting and monitoring the pest in hot peppers (Capsicum chinensis L.) under field conditions in St. Vincent. The experiments test three different base color traps (blue, yellow and white), the addition of dichlorvos (Vapona) as a killing agent, and the addition of ethylene glycol as an insect preservative. Average weekly catches were low at 0.01 to 0.18 S. dorsalis per CC trap per week. A sticky card trap (blue, yellow and white) experiment was also conducted in the dry season. Average weekly catches on the yellow sticky card traps were 19.8 S. dorsalis per card per week. The potential benefits and shortcomings of using either or both of these detection methods are discussed.