稻粉虱发生调查初报张时兴（福建霞浦县植保站，３５５１００）稻粉虱是一种小型昆虫，成虫粉白色，刺吸式口器，卵浅黄色，幼虫淡黄色，复眼褐色，蛹淡黄色。幼虫在水稻底叶至上叶为害，多集中在叶片背面，吮吸汁液。叶片被害处黄化枯萎，并能分泌蜜露，诱发煤烟病，稻叶... An investigation of the occurrence of rice whitefly Zhang Shixing (Plant Protection Station of Xiapu County, Fujian Province 355100) Rice whitefly is a kind of small insect with white powder and sucking mouthpart. The egg is light yellow, the larva is light yellow, the compound eye is brown and the pupae are light yellow. Larvae in the rice leaves to the upper leaves damage, and more concentrated in the back of the leaves, sucking juice. Vulnerable to yellow leaves withered, and honey can be secreted, induced soot disease, rice leaves ...