What to do when water spinach gets white rust? Detailed control methods
①Use disease-free seeds or treat seeds with 0.3% of seed weight of ridomil-mancozeb seed dressing. ②This disease is limited to infecting Convolvulaceae vegetables; after 2~3 years of crop rotation, the control effect is good. ③Pay attention to field drainage and thin out plants for ventilation. ④At the early stage of the disease, spray 48% metalaxyl-mancozeb wettable powder, 40% metalaxyl-copper wettable powder...
①Use disease-free seeds or treat seeds with 0.3% of seed weight of ridomil-mancozeb seed dressing.
②This disease is limited to infecting Convolvulaceae vegetables; after 2~3 years of crop rotation, the control effect is good.
③Pay attention to field drainage and thin out plants for ventilation.
④At the early stage of the disease, spray 48% metalaxyl-mancozeb wettable powder, 40% metalaxyl-copper wettable powder, or 64% sandofan wettable powder 600-fold solution, 72.2% propamocarb aqueous solution 800-fold solution, once every 7~10 days, for 2~3 consecutive treatments.