甜核·苏云菌对水稻二化螟的防效

摘要

为减少化学农药在稻田的使用,在四川新都进行了2种生物农药混配制剂--甜核·苏云菌防治水稻二化螟试验和示范.结果表明:采用PB-16手动喷雾器防治试验,甜核·苏云菌对水稻二化螟的枯心、白穗和虫伤株的防治效果分别为98.0%、99.56%和99.29%,采用东-18机动喷雾器喷雾示范,甜核·苏云菌对二化螟的枯心、白穗和虫伤株的防治效果分别为96.44%、97.83%和96.69%,效果良好,可以在大面积生产中推广应用.%To reduce chemical pesticide use in paddy fields, we tested the Beet armyworm nuclear polyhedrosis virus · Bacillus thuringiensis, a mixture of 2 bio-pesticides, for its effects on the rice stem borer in Xindu county.The results of field trials showed that, by using the PB-16 manual sprayer, its control efficacies to dead heart,dead head and infested plants were 98.0％, 99.56％ and 99.29％, respectively; by using the Dong-18 machine sprayer, its control efficacies were 96.44％, 97.83％ and 96.69％, respectively.The mixture can be extended for large-scale use in agricultural production.