The scale insects are common in succulents and rely on the absorption of plant sap. The scale insects seriously affect the normal growth of the plants. In severe cases, the plants may even cause dryness and death. What are the effective methods for controlling the scale insects? Let's follow the Xiaobian to understand it.
1. The scale insects occur 2 to 3 generations a year. From late May to early June, it is the most serious generation. Because there is a layer of wax in the body, and the occurrence is not uniform, the prevention and treatment are divided into two steps. Before the bud, that is, in the winter or early spring, the stone sulphur mixture is used for 1~2 times, and the rod can be coated with kerosene for 3~5 times in the affected part;
2, pay attention to observe, from late May to early June, the nymphal nymphs out of the shell active period, available 48% chlorpyrifos or 40% chlorpyrifos + synergist, malathion or butyl thiocarbamate + imidacloprid Or pyridine insects sprayed, sprayed once every 5 to 7 days, can kill most of the scale insects.
TIPS:
If normally orchard insecticide cypermethrin been selected matrine synthetic biological pesticides, such as an ideal biochemical out Changfeng, cyano pentyl matrine, scale insects can without special control, Park naturally eliminated.
Special medicine for controlling scale insects:
40% omethoate 1000 times solution, or 50% malathion 1500 times solution, or 255 imipenem 1000 times solution, or 50% dichlorvos 1000 times solution, or 2.5% deltamethrin 3000 times solution, spray. Spray once every 7-10 days for 2-3 times.
Presumably through the introduction of Xiaobian, you have a general understanding of the methods to control scales, and want to know more about pesticides , please pay attention to China's pesticide network.
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