甘蔗二点螟各代发生期较长,第一代成虫发生期从5月上旬至6月上旬,因此整代产卵期长达30余天。 我们进行了室内杀卵效果试验:用3％呋喃丹加水稀释至有效浓度0.1％,浸二点螟卵块一分钟。 同时在盆栽的蔗苗根区,每株根部挖孔撮施3％呋喃丹颗粒剂2克(折3％呋喃丹颗粒剂每亩12斤),进行内吸杀虫及药效期试验。 Each generation of sugarcane two-spot borer longer period, the first generation of adult occurrence from early May to early June, so the entire generation spawning period of up to 30 days. We conducted an indoor ovulation test: 3% carbofuran diluted with water to an effective concentration of 0.1%, immersed two borer eggs one minute. At the same time, in potted cotyledon root zone, 3% carbofuran granule 2g (3% carbofuran granule 12g per acre) was excavated in the root of each plant for insecticidal and excretion control.