文档介绍：2022 50 6 885-890
山西农业科学 ， （ ）： Journal of Shanxi Agrint pest on pear trees in China. It can be differentiated into winter-type
and summer-type in different seasons. In order to study the taxis of two types of Psylla chinensis Yang et Li to LED light with
different wavelengths, and provide a theoretical basis and a new idea for the field monitoring and comprehensive control of Pear
psylla, thereby develop a new light source insecticidal lamp and solve the disadvantages of the traditional insecticidal lamp. In this
study, the phototaxis of two types of Pear psylla to LED lights with different wavelengths and intensities was tested by using a
testing device for phototaxis of micro insects in the laboratory. The results indicated that Pear psylla showed different levels of the
phototaxis to six kinds of monochromatic light in the range of 435–630 nm when it was stimulated by a single light. Winter-type
Pear psylla was the most sensitive to violet light (435 – 445 nm) with an % phototaxis rate, whereas summer-type Pear
psylla was the most sensitive to green light (525–530 nm) with an % phototaxis rate. When the four short wavelengths of
LED light of violet, blue, green, and yellow were used to stimulate the two types of Psylla chinensis Yang et Li at the same
time, the phototaxis rate of winter-