Even rainy to prevent jujube brown spot disease
Due to the recent continuous rain, the current high temperature and high humidity climatic conditions have led to serious occurrence of brown spot disease in some jujube gardens, reminding the farmers to pay attention to prevention and treatment.
Brown spot disease is a rotten disease and rotten fruit disease commonly referred to by jujube farmers. The onset of the disease is mostly from the beginning of the jujube, but also from the middle part of the jujube fruit. The disease is mainly related to the mouth sucking pests. After the mouth sucks the insects, the bacteria will be immersed from the sucking mouth, rainy, humid, hot weather. It is a favorable condition for the occurrence of the disease.
The key to brown spot prevention is to combine the health of the orchard with the control of the chemical. In the case of chemical control, one is to spray the leaves before flowering to protect the leaves, and the other is to control the fruit damage after falling flowers. Protecting the blade 1 can generally spraying; control victims need to begin spraying the fruit after falling about half, 10 to 15 days, 4 times or even spray.
Alternatively the drug even 30% suspension Four times 1000 to 1200, 70% of dragon thiophanate-methyl wettable powder 1000 to 1200 times, 500 g / l carbendazim suspension system busy times 1000 to 1200, 80 % too wettable powder 800 ~ 1000 times liquid, 77 % Daning wettable powder 600 ~ 800 times liquid, 60 % Tongjia wettable powder 600 ~ 800 times liquid, 1 : 2 ~ 3 : 200 ~ 240 times Bordeaux liquid, etc. .
　　 ( Zhang Mingjun, Agricultural Bureau of Jixian County , Hebei Province )
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