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河北省永年县是小麦吸浆虫的老发生区,发生面积和程度有逐年加重的趋势,给粮食安全构成威胁。为筛选防治小麦吸浆虫的高效低毒新农药,永年县于2006年进行了5%毒死蜱颗粒剂防治小麦吸浆虫试验(5%毒死蜱颗粒剂由山东华阳科技股份有限公司提供,下称毒死蜱)。1.材料与方法。试验在河北省永年县东杨庄乡西杨庄村李运良麦田内进行,小麦吸浆虫发生较重,4月5日基数调查,平均6头
Yongnian County, Hebei Province, is an old occurrence area of the midge of wheat, and its occurrence area and degree have been increasing year by year, posing a threat to food security. In order to screen high-effective and low-toxicity new pesticides for preventing and controlling wheat midge, Yongnian County conducted a 5% chlorpyrifos granules control test on wheat midge in 2006 (5% chlorpyrifos granules supplied by Shandong Huayang Science and Technology Co., Ltd., hereinafter referred to as chlorpyrifos). 1. Materials and methods. The experiment was carried out in Li Yunliang wheat field in Xiyangzhuang Village, Dongyangzhuang Township, Yongnian County, Hebei Province. Midmid blotch occurred heavier and on April 5, the average number was 6