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山东省植物保护总站近日发出预报,2013年上半年全省农作物主要病虫害呈偏重发生趋势。经分析预测,2013年上半年全省农作物主要病虫发生趋势为:小麦病虫总体中等偏重发生,虫害主要有麦蚜、麦蜘蛛、地下害虫、吸浆虫等,病害主要有小麦锈病、纹枯病、白粉病、赤霉病等。预计发生面积1.74亿亩次。其中小麦赤霉病,由于菌源丰富且主要发病区主栽小麦品种多数不抗病,若扬花期遇连阴雨天气或田间小气候适宜,仍有偏重发生可能。
Plant Protection Station of Shandong Province recently issued a forecast, the main crop pests and diseases in the province in the first half of 2013 tended to be the trend. According to the analysis and forecasting, the main crop pest occurrence trends in the province in the first half of 2013 are as follows: the overall incidence of wheat pests and diseases is moderate and moderate. The main pests are wheat aphids, wheat spiders, underground pests and midge insects. The main diseases are wheat rust and sheath blight , Powdery mildew, scab and so on. Estimated area of 174 million mu times. Among them, the wheat head blight, because of the rich source of bacteria and the majority of the main cultivated wheat cultivars in the main disease-causing areas, is not resistant to disease. If the flowering period is suitable for even the rainy days or the microclimates in the field, the emphasis may still occur.