摘要
用20％三环唑(tricyclazole)可湿性粉剂750—1000倍液浸湿秧苗半分钟左右取出,堆置半小时后移栽,药后33—55天防效达85％以上,本田不再施药即可有效地控制本田叶瘟。较常规喷雾更有效地发挥了三环唑内吸性强、持效期长、耐雨水冲刷的特点,减少本田施药1—2次,省工省药且方法简便易行。通过四川大面积示范推广,效益非常显著,为稻瘟病综合防治提供了一项有效措施。
The blast of rice (Piricularia oryzae Cav.) could be effectively con-troled by the treatment of the rice seedling with 20% tricyclazole wet-table powder.The rice seedling was drilled in the tricyclazole waterformulation of 1/750—1000 for about 0.5 minute and then piled up forabout 0.5 hour before planting.The control effect of blast of rice wasabove 85% within 35—55 days,therefore,the blast of rice leaf couldbe effectively controled even without spray at paddv field.Comparedwith conventional spray,this method gave more effective,because thetricyclazole was highly systemic,long persistance and persistant torainy washing.As a result,the application of spray at paddy field wasreduced,the need for fungicide and labor lowered.Extention at largearea in Sichuan Province of China demanstrated.that the treatment ofrice seedlings is an effective tactic to control the blast of rice.
出处
《植物保护学报》
CAS
CSCD
北大核心
1989年第3期211-215,共5页
Journal of Plant Protection
关键词
三环唑
浸秧
稻瘟病
blast of rice
tricyclazole
drilling treatment
