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近年来,金针虫在滨州市麦田发生为害程度逐年加重,特别是有机质含量少的疏松沙质土壤发生较重,田间虫量大,麦苗死亡率高,造成小麦减产,品质降低。2005年全市麦田金针虫发生面积约2万hm2,据4月上旬调查,平均每平方米有虫3.65头,最高达8头,发生地块缺苗断垄,严重影响小麦生产,发
In recent years, the insects in Binzhou City, wheat crop damage degree increased year by year, especially less organic matter content of loose sandy soil occurred heavier, field insects, wheat seedlings mortality, resulting in wheat yield, reduce the quality. In 2005, an area of about 20,000 hm2 of wheat-field insects occurred in the wheat field in the whole country. According to the investigation in early April, the average number of worms per square meter was 3.65 and the maximum was 8, causing the lack of seedlings and breaking the ridge, which seriously affected the wheat production.