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深层施药防治水稻害虫,是近年开展的一种新的施药方法。不但治虫效果显著提高,残效期延长,而且能保护害虫的天敌,协调化学防治与生物防治的关系,同时减少了对环境的污染。 华南农学院于1975年开始进行研究,为我国稻田深施农药打下了基础。湖北黄冈地区农科所在早稻、晚稻秧田、晚稻上试验,证明用呋喃丹、杀虫脒+乐果、叶蝉散等深施,能有效地防治水稻害虫,同时保护了天敌。湖北监利县病虫测报站防治褐稻虱试验结果,呋喃丹残效可达30天以上。江苏丹阳县农科所对杂交稻南优3号试验,用3％呋喃丹,亩施7斤(折合有效成分105克),残效可达70天。浙江嘉兴县农业局试验,呋喃丹和巴丹深施对褐稻虱、黑尾叶蝉,残效最长
Deep application of pesticides to control rice pests is a new method of application in recent years. Not only the effect of pest control is significantly improved, the residual period is prolonged, but also the natural enemies of pests are protected, the relationship between chemical control and biological control is coordinated, and the pollution to the environment is reduced at the same time. South China Agricultural College started in 1975 to study for the deep paddy pesticide in our country laid the foundation. Experiments on early rice, late rice and late rice in the agricultural sciences in Huanggang, Hubei Province proved that the use of carbofuran, chlordimeform + dimethoate and leafhoppers can effectively prevent rice pests and protect natural enemies. Jianli County, Hubei Province pests and diseases test station control brown planthopper test results, residual carbofuran up to 30 days. Danyang County, Jiangsu Province, hybrid rice hybrid rice Nanyou 3 test, with 3% carbofuran, Mushi Shi 7 pounds (equivalent to 105 grams of active ingredients), the residual effect of up to 70 days. Zhejiang Jiaxing County Bureau of Agriculture test, carbofuran and Bardan deep application of brown planthopper, black-leafhopper, the most effective