摘要
【目的】为了明确几种新药剂及目前广泛使用的两种药剂对稻飞虱的防治效果,为指导生产提供科学依据。【方法】采用烯啶·吡蚜酮、吡蚜酮、噻虫嗪、噻嗪酮、吡虫啉等5种农药在水稻孕穗期防治稻飞虱试验。【结果】80%烯啶·吡蚜酮WG 9g/667m^2、50%吡蚜酮WP 12g/667m^2、25%噻虫嗪WG 4g/667m^2药后3d防效分别为94.66%、86.31%、83.30%;药后7d防效分别达到97.05%、93.13%、90.73%;药后14d防效仍分别保持在99.29%、96.75%、94.41%。10%吡虫啉WP 40g/667m^2和25%噻嗪酮WP 80g/667m^2药后3d防效分别为80.53%和68.46%;药后7d防效分别为85.84%和82.24%;药后14d防效分别为83.77%和84.94%。【结论】80%烯啶·吡蚜酮WG 9g/667m^2、50%吡蚜酮WP 12g/667m^2、25%噻虫嗪WG 4g/667m2对稻飞虱都有很好的防治效果,是当前防治稻飞虱比较理想的药剂,建议在生产上大力推广应用;25%噻嗪酮WP 80g/667m2和10%吡虫啉WP 40g/667m2对稻飞虱还有一定的防治效果,但防效比使用初期已明显大幅下降,建议逐步减少使用或与其他农药混合使用。
To clear the effects of two kinds of pesticide for controlling rice planthopper in field, guiding production, we conduct field trials for rice plant hopper controlling during rice booting stage by applying 5kinds of pesticide as follows： ene organism, pyrazole ketone of aphid, pyrazole ketone of aphid,thiamethoxam, buprofezin, imidacloprid.The results showed that these pesticides achieve idea effect on rice plant hopper controlling： applying 80% of ene organism, pyrazole ketone of aphid WG with 9g /667m^2, 50%of pymetrozine WP with 12g/667m^2, 25% thiamethoxam oxazine WG4 with667g/m^2, which advice can be promoting in paddy rice production; while 25% buprofezin WP with 80g/m^2 and 10% imidacloprid WP with40g/667m^2, which still achieve some control effect on rice plant hopper, because the effect obviously decline which compare with the effect in early stage, we suggested that it should be gradually reduce applying or mixed with other pesticide.
出处
《广西农学报》
2015年第6期16-18,共3页
Journal of Guangxi Agriculture
基金
2015年广西水稻防治技术推广项目
关键词
稻飞虱
药剂
防治
药效
Rice plant hopper
pesticide
prevention and controlling
efficacy
