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Sugarcane moth mainly harms ornamental plants such as cycad, brazilwood, pachira, pineapple, tiger peland, acacia and other ornamental plants. The larvae penetrate into the underside of the bark, and when the density is high, the host's cortex can empty, leaving only a thin outer skin. The skin is full of dung, dry and dead. The methods of prevention and treatment are as follows: 1. Treat the sawhorse of Brazilian wood. Before planting the stumps, the red and black paraffins are evenly coated to seal the cuts, which can significantly reduce the damage rate of the studs. If the insecticides are applied once after sealing the wax, the protective effect will be better. 2. Process by source. When Brazilian wood is introduced, it is not necessary to quickly kill 20% of diclofenac to soak the tree stump for 5 minutes, dry it, and then plant it. 3. Growth period control. The cortex of the bark of the host plant is sprayed or perfused with 2.5% dichlormic EC or 20% of extinct DF 2500 times, once every 7 days for 3 to 5 days, and good control effect can be obtained. 4. Treat the soil. Using the larvae's habit of ploughing into earthworms, 5% Shennongdan is mixed with fine sand soil in a ratio of 1:200. It is applied to the potted soil surface. This medicine has a systemic action and can kill larvae inside the bark. 5. Greenhouse control. Winter cane moth can not winter in the north of China can not winter, according to this characteristic, in the greenhouse with a piece of cloth with dichlorvos placed fumigation, put a block every 30 square meters for 3 months, the control effect of more than 90%.