杀单·毒死蜱在粤糖60号配套栽培中的防虫效应研究

为明确5%杀单·毒死蜱在粤糖60号配套栽培上的总体防虫效应、速效性、持效期等,为其在粤糖60号大田生产上配套应用提供科学依据。以粤糖60号为供试甘蔗品种,设5%杀单·毒死蜱药剂处理,与常规农药3%呋喃丹及空白对照处理进行比较,采用沟施、撒施覆土方法进行杀单·毒死蜱防治粤糖60号易遭受的害虫药效试验。结果表明,在本试验条件下,各处理间的枯心率、虫节率、蔗茎产量、含糖量差异极显著或显著。在粤糖60号种植时和大培土时每667m2各施用低毒农药5%杀单·毒死蜱6kg,对甘蔗螟虫、绵蚜虫、蓟马和地下害虫金龟子等具有良好的防治效果,能减少品种遭受虫蛀茎为害,有效提高甘蔗蔗糖分,对粤糖60号增产、增糖具有明显的促进作用。建议在粤糖60号配套栽培中注意因虫选药、科学合理用药,尤其是螟虫、绵蚜虫、蓟马、金龟子等为害严重的地块种植该品种推荐配套使用5%杀单·毒死蜱进行防治,以达到增产、增糖和增收的目的。

Study on Monosultap and Chlorpyrifos Cartap Granules to control sugarcane borer in Yuetang60's cultivation

The control efficacy, rapid availability and continued time tap and Chlorpyrifos cartap granules coulf will be clear in Yuetang60 of pesticide efficiency of 5 % Monosul- ＇s cultivation, and the scientific support could also be provided for their appliction. The field effect test of 5% Monosuhap and Chlorpyrifos cartap granules, compared with 3% Carbofuran and blank control group which were both to control sugarcane borer, was carried out by planting significant difference among the sugarcane variety Yuetang60. Result show that：there was significant or very these different treats not only in the degree of insect pest, but also in cane and sugar yield. 5% Monosuhap and Chlorpyrifos cartap granules, which could be respectively applied with 90kg per hectare both in planting stage and in the earthing-up period, was supposed to be the most effective to control sugarcane borer and to increase cane and sugar yield. It is suggested that： In practice, the proper pesticide and its usage and dosage should be considered tang60＇s cultivation according to the different insect pest, field. for high cane and sugar yield and income in Yue- especially when there were many insect pests in the