Brief introduction of Prevention and Control of Orchid Diseases and insect pests
Like any plant, orchid is affected by air and insect transmission factors, as well as carelessness of orchid farmers, excessive humidity, unclean plant material, plant disease, improper fertilization, poor ventilation, lack of light and other human factors, leading to the occurrence of diseases and insect pests. First of all, it is necessary to solve the causes of man-made diseases and insect pests, and the second is to prevent bacteria in air circulation from invading people and insect-borne diseases and insect pests. As for viruses, except for human factors, most orchid viruses are transmitted by insect bites. For this reason, killing insects in Orchid Field is the main category to prevent the occurrence of viruses.
The diseases, insect pests and virus diseases of orchids are basically the same as those of grain, vegetables and other crops, so the effect of using pesticides to control orchid diseases and insect pests and virus diseases is ideal.
When the Spring Equinox goes to the Autumn Equinox every year, it is the breeding and spread of insects. During the season of spreading germs and viruses, insecticides are sprayed once or twice a month. Insecticides can be mixed with fungicides. This reduces the frequency of pesticide application, but it must be used now. And it must be operated in accordance with the instructions of the medicine to avoid mistakes.
The method of treating both bacteria and viruses can be adopted, and some pesticides have the effect of treating both pathogens and viruses, such as anthracnose, leaf spot, Fusarium wilt, powdery mildew, white silk disease, etc. at the same time, it also has the effect of inhibiting and killing some viruses. (Chen Jisheng)
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