MySheen

Common pesticides for prevention and control of chrysanthemum diseases and insect pests

Published: 2024-12-23 Author: mysheen
Last Updated: 2024/12/23, First, the main symptoms: occur in the leaves, and mostly in the lower leaves. The initial stage of the disease spot is faded green macula; after expansion, the disease spot is round to irregular, the edge is dark brown, inside grayish brown; in the later stage, the disease spot is dry and black granules appear. Second, the cause of the disease: fungal diseases. Germs live in the soil.

There are many diseases and insect pests in chrysanthemum, which need to be prevented. In addition to the common physical control methods, chemical control is used relatively frequently and pesticides are used accurately in order to achieve the best control effect. First, there are many diseases of chrysanthemum, which are commonly used medicine, such as sheath blight, spot blight, rust, powdery mildew, spot disease, etc., and the commonly used pesticides are Banling, chlorothalonil, encyclopedia EC, topiramine, colloidal sulfur, methomyl, carbendazim, carbendazim, and so on. Second, insect pests commonly used pesticides chrysanthemum pests are on the ground, such as aphids, thrips, leaf moths, borers and so on. The main underground insect pests are ground tiger, beetle larva and so on. Ground pests can be controlled with 20% chrysanthemum EC, dipterex, trichlorfon crystal, Xingmianbao and so on. Underground insect pests can be controlled by Shachongshuang. There are also red spiders and rusty spiders, which can be controlled by propargite, copper, Tork, diformamidine, dichlorvos and so on. Pesticides in use should pay attention to weather changes, do not spray before heavy rain and cloudy days, this weather will affect the effect of pesticide use. Generally choose sunny morning or evening.

 
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