How to control anthracnose of Euonymus tomentosa?
The methods to control anthracnose of Euonymus tomentosa are as follows: first, collect diseased branches and leaves in autumn and winter and burn them centrally to reduce the source of the disease. Second, in the early stage of the disease, 75% chlorothalonil wettable powder 500 times, or 50% anthrax Fumi wettable powder 500 times, or 1: 1: 160 Bordeaux, or 50% carbendazim wettable powder 800 times.
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How to control leaf spot of Euonymus tomentosa?
Prevention and control of leaf spot of Populus tomentosa: first, thoroughly remove the diseased leaves in winter, burn them or bury them deeply, and reduce the source of the disease. Second, select strong seedlings to build Gracilaria or make yellow poplar balls. Third, spray 1% Bordeaux solution, or 50% benzoate wettable powder 1000 to 1500 times, or 50% carbendazim, or 75% chlorothalonil, once every 10 to 15 days, 2 to 3 times in a row. Or spraying with 200 times non-toxic high-fat membrane for 4 times is also effective.
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How to control gray spot of Euonymus tomentosa?
The methods to control the gray spot of Populus tomentosa are as follows: first, strengthen plant quarantine and select healthy seedlings. Second, strengthen tending and management, cultivate strong seedlings and enhance plant disease resistance. Third, thoroughly remove diseased leaves and diseased fallen leaves in autumn, winter and early spring, concentrate on burning, and reduce the source of infection. 4. in the early stage of the disease, the plants were sprayed with 200-fold liquid of non-toxic high-fat membrane every 20 days for 3 to 4 times continuously. Fifth, during the epidemic period of the disease, spray 50% carbendazim or 75% chlorothalonil 500 to 1000 times, use alternately, spray 4 to 5 times continuously.
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