果园施用石硫合剂五忌黑龙江省绥棱县农调队学凤石硫合剂是防治果树病虫害的常用农药，可防治白粉病、锈病、黑星病以及红蜘蛛、介壳虫等多种病虫害。但若使用不当，不但防效差，还会引起药害。因此，用石硫合剂防治果树病虫害应注意以下五个问题。一、忌配制后久置：石硫... Orchard application of sulfur sulfur mixture Five Bogey Heilongjiang Province Suining County Nongjiaodiao Xuefeng sulfur mixture is a common pest control pests of fruit trees, can control powdery mildew, rust, scab and spider mite, scale insects and other pests and diseases. However, if used improperly, it will not only cause poor control effect but also cause injury. Therefore, the use of lime sulfur stone pest control should pay attention to the following five questions. First, avoid long after the preparation set: stone sulfur ...