摘要
试验结果表明:利用热雾机喷撒粉锈宁防治橡胶白粉病,比用喷粉机喷撒硫磺粉具有更好的防治效果。粉锈宁是一种效果好、有效期长、成本低的优良农药。应用粉锈宁以早期施药(总指数在6以下)最为有效,其有效剂量为每亩次5克纯药,有效期12—19天。
The results of field control experiments on commercial plantations applications showed that in controlling Oidium heveae, Triadimefon sprayed with fogging machine was better than sulphur dusting. Triadimefon had the merits of higher efficiency, longer effective period and lower cost. The suitable time for the first spraying was at early stage when the total disease index was less than 6. The effective period per spray lasted 12—19 days.
出处
《热带作物学报》
CSCD
1989年第2期65-72,共8页
Chinese Journal of Tropical Crops
