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据近年调查,我省各地危害山楂的病、虫种类较多。危害果实的主要有桃小、白小、梨小等食心虫:危害花器和叶片的有卷叶虫、山楂粉蝶、天幕毛虫、舟形毛虫、小青花金龟子及苹毛金龟子;危害枝干的有沙里院褐球蚧、槐枝坚蚧和木囊蛾。主要病害有白粉病和花腐病。因此,要搞好山楂生产,提高品质,必须在早春防治的基础上,做好如下几项防治措施。
According to the survey in recent years, hawthorn in our province all over the disease, insect species more. Harm the fruits of the main peach small, white small, pears and other small heart worms: endanger the flowers and leaves have leaf roller worms, hawthorn butterflies, celestial caterpillars, boat caterpillars, small blue-eared beetles and bearded scallops; endanger the branches of Shaliyuan Brown ball scale, Sophora japonica and woodworm moths. The main diseases are powdery mildew and flower rot. Therefore, to do a good job hawthorn production and improve quality, we must do the following prevention and control measures on the basis of early spring prevention and control.