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Title: SELECTIVITY OF CC TRAPS IN CATCHING GREEN LEAFHOPPERS AND THRIPS

Author
item WEI, YUAN'AN - GUANGXI UNIV., CHINA
item DOUMBOUYA, A - GUANGXI UNIV., CHINA
item DONGQIANG, ZENG - GUANGXI UNIV., CHINA
item YIHONG, DONG - GUANGXI UNIV., CHINA
item REDDY, V. - INT'L CROP RES. INDIA
item Chu, Chang Chi
item Henneberry, Thomas

Submitted to: Guangxi Sciences
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 6/10/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary: A newly developed whitefly trap, named CC trap, was tested for thrips catches with eight different colors of trap base. Results of the studies in China and India showed that blue and white colored trap bases caught more thrips: Chinese thrips, chillie thrips, and melon thrips, compared with yellow colored trap base, indicating the potential of using those two colored trap base traps for monitoring thrips densities under field conditions.

Technical Abstract: CC trap base colors of white, red, yellow, lime, green, dark green, blue and black, were evaluated for capture of leafhopper and thrips species in a yardlong beans (Vigna sesquipedalis Wright) in Nanning, Guangxi, People's Republic of China. Blue-colored traps caught an average of 22.8 Chinese thrips, Haplothrips chinensis Priesnes/trap/day, about twice many as were caught in CC traps with white trap bases. Numbers of thrips caught in CC traps with other trap base colors ranged from 0.1 to 1.7 thrips/trap/day. CC traps caught about four green leafhoppers (Empoasca spp.) per trap per day and there was no differences among trap colors. In Rajirdisnogar, Andhra Pradesh, India, CC traps with white, yellow or green colored trap bases were evaluated in a peanut field. Traps with white bases averaged 39.8 chillie thrips, Scirtothrips dorsalis Hood, per trap per day. More than 2x the numbers caught in traps with yellow bases. Traps with green colored bases caught the least numbers of thrips. Traps with white colored bases also caught significantly more melon thrips, Thrips palmi Karny, (17.3 thrips/trap/day) compared to 11.0 in traps with yellow colored bases. We conclude that CC traps with blue or white colored bases may be used for monitoring thrips populations in bean and peanut fields.