Effect of Trap Color on Species Composition of Alate Aphids (Homoptera: Aphididae) Caught over Watermelon Plants
1994; Florida Entomological Society; Volume: 77; Issue: 1 Linguagem: Inglês
10.2307/3495881
ISSN1938-5102
AutoresSue Webb, Moh Leng Kok‐Yokomi, David J. Voegtlin,
Tópico(s)Plant Pathogenic Bacteria Studies
ResumoThe species composition and abundance of alate aphids caught in water traps containing green or yellow tiles were compared. Traps were operated in a watermelon field during the spring and autumn growing seasons of 1992. Aphis spiraecola Patch, a vector of watermelon mosaic virus 2 (WMV-2), accounted for 79% of the aphids caught in the spring and 91% of those caught in the autumn in yellow traps. However, this species accounted for only 6% and 11% of aphids caught in green traps in the spring and autumn, respectively. Uroleucon pseudambrosiae (Olive), also a vector of WMV-2, was the most abundant aphid in green traps in the spring but was absent in the autumn. Aphis gossypii Glover (16% of aphids in green traps) and Aphis craccivora Koch (31%) were more common in the autumn than in the spring and may be important vectors of cucurbit potyviruses at that time.
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