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随着棉花棉铃虫统防统治技术的推广普及，对棉铃虫防治药械的要求越来越严格。为进一步明确不同药械对棉铃虫的防治效果，于１９９８年第四代棉铃虫幼虫发生期，就背负式喷雾喷粉机与背负式喷雾器防治棉铃虫进行了田间比较试验。１试验材料和方法试验地设在安乡县农科所３...
With the popularization and popularization of cotton bollworm unite prevention and control technology, the requirements for cotton bollworm prevention and cure equipment are becoming more and more strict. In order to further clarify the control effect of different medical devices on Helicoverpa armigera, field trials were carried out on the fourth generation cotton bollworm larvae in 1998 in response to the control of the cotton bollworm by the knapsack sprayer and the knapsack sprayer. 1 test materials and methods experimentally located in Anxiang Agricultural Science Institute 3 ...