Responses of Selected Thysanoptera to Colored Surfaces

摘要: The color preferences of 3 thrips populations were determined by placing 7.5×12.7-cm painted cards coated with Stickem® on 1.3 m stakes in a rye field. Sericothrips variabilis Beach was most attracted to yellow, Anaphothrips obscurus Muller and Frankliniella fusca (Hinds) yellow white, F. tritici (Fitch) low ultraviolet remitting white surfaces. In the greenhouse, Taeniothrips simplex (Morison) orange. Only , general flower inhabitant, clearly distinguished between high UV Dilutions paints zinc (a remitter) revealed consistent linear relationship catch percentage mixtures within upper lower limits response. black-zinc dilution series, increased at near rate logarithm increase mean percent remission from 400 660 nm. red or black lead produced no distinctive responses; however, certain dilutions caught more than corresponding dilutions. Responses glass filters placed over various metallic surfaces indicated preference for which remit only UV, visible spectrum above 500 nm have strong peak blue-violet region. It also confirmed that elimination aluminum foil their attractiveness level white. Lead borders (28 cm2) greatly reduced all species 7 cm2 center cards, paper border 5 colors tested.