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随着抗虫棉的大面积种植,棉铃虫已经降级为次要害虫,而以往的次要害虫盲蝽蟓危害逐渐加重,很多地区已经逐步上升为主要害虫。棉盲蝽蟓个体小,容易迁飞、喜欢早晚出来危害棉花,刺吸棉株幼嫩组织汁液,造成蕾铃脱落,形成破叶疯和扫帚棉,对棉花的产量造成较大的损失。为此,我们于2009年在湖北省云梦县进行了26%啶虫脒·高效氯氟氰菊酯水分散粒剂防治棉花盲蝽蟓田间药效试验。现将试验结果报告如下。1材料与方
With the large-scale planting of insect-resistant cotton, the bollworm has been downgraded to a secondary pest, while the harm of the previous major pest, Miridae, has gradually increased, and many areas have gradually risen to major pests. Cotton bugs are very small and easy to migrate. They like to come out sooner or later to endanger the cotton and sprout the young tissue juice of the cotton plants, causing the buds to fall off and form the broken leaf broom and the broom cotton, causing a big loss to the cotton yield. To this end, in 2009, we conducted a field trial of 26% acetamiprid / lambda-cyhalothrin water dispersible granule in the prevention and control of cotton planthoppers in Yunmeng County, Hubei Province. The test results are reported below. 1 material and side