经山东省上半年农作物病虫发生趋势会商会专家分析会商,山东省植物保护总站近日对全省2015年上半年农作物主要病虫发生趋势预报如下:一、小麦病虫总体中等发生。虫害主要有麦蚜、麦蜘蛛、地下害虫、吸浆虫等,病害主要有纹枯病、赤霉病、白粉病、锈病等。预计发生面积1.67亿亩次,接近常年。虫害:麦蚜大发生,半岛及鲁南中 The first half of Shandong Province pests and diseases will occur in the Chamber of Commerce expert analysis meeting, Shandong Province Plant Protection Station recently on the province in the first half of 2015 the main crop pest occurrence forecast as follows: First, the overall incidence of wheat pests. Pests mainly wheat aphids, wheat spiders, underground pests, inhalation of insects, etc., the main diseases are sheath blight, scab, powdery mildew, rust and so on. Estimated area of ​​167 million mu times, close to perennial. Pests: wheat aphid occurred, Peninsula and Lunan in