Red spot disease is one of the major diseases in the production of broad bean in Qidong City. It often causes a 20% loss in production. It should seize appropriate drug control and control hazards.
In the April 11th census of Daejeon, the disease rate of broad bean red spot disease was 94.7%, the diseased leaf rate was 32.76%, and the disease index was 8.2. The systematic observation rate was 100%, the diseased leaf rate was 31.08%, the diseased index was 7.77, and the disease was low. In the same period last year. Due to the rapid rise in temperature in the near future, the condition will develop rapidly and it is expected that this year, broad bean spot disease will occur moderately.
To control faba bean red spot disease, we should clear the gully in time to reduce soil moisture and improve plant disease resistance; cut off invalid stems and severe disease stems to bring out the field, reduce field disease sources; use 22% synergistic carbendazim per acre Wet powder 120 grams or 40% polyketone wettable powder 120 grams, add water 50 to 60 kilograms of spray, every 7 to 10 days before the drug once again, the whole plant penetrating, in order to improve the control effect.
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