苹果蚜虫防治有新法文＼田彩芳苹果蚜虫（俗称油汗），它分泌粘液，吸食汁液，使带虫植株有的叶片向背面纵卷、嫩叶凋枯，枝梢瘦弱；有的叶片向背面横卷、凋萎、新梢不长或者发育不良，从而降低了光合效率，还有的使小枝和根系出现肿疣，皮部木栓化，树势衰弱，使整个树体... Apple aphid control a new French Tian Caifang Apple aphids (commonly known as oil sweat), which secrete mucus, juice, so that some insects plant leaves to the back of the vertical roll, withered leaves, shoots thin; some leaves to the back horizontal Volume, wilting, shoots are not long or poorly developed, thus reducing the photosynthetic efficiency, as well as the emergence of branchlets and roots of swollen warts, epidermis cork, tree weakness, the entire tree body ...