The sargus is a lepidopteran, and the moth extermination family, also known as persimmon moth, persimmon fruit moth, is the main pest harming persimmon trees. The larvae persimmon fruit persimmon is larvae, and the first generation of larvae in the early stages are injurious. It can cause the persimmons to shrink from green to brown and not fall off, commonly known as “small black persimmonâ€. The scientific prevention and treatment of kakitos is introduced as follows:
Scratching the pedicle The stalks are peeled off in winter to peel off the rough skin and old rough skin, remove the remaining shitty from the tree, and burn them in a concentrated manner to eliminate overwintering larvae.
Remove pest fruit In mid-June, mid-August and early September, the pests will be removed timely, picked up and buried deeply, which will reduce the risk of second-generation larvae.
The grass lured the mid-August. Before shaving the rough trunk, the main branch was attached with a straw handle. The larva was lured into the winter, and after the winter, the grass was destroyed and burned.
Chemical control 1. In the two generations of adult emergence, spraying 5000-5% of 2-5% deltamethrin or 20% of fast killing D can receive significant control effect; or use 50% of malathion Phosphorus, or 50% dichlorvos EC, 50% killer pine, and 40% dimethoate 1000 times also have better control effects. 2. Herbal medicine Shidi. This method is suitable for small persimmon trees. In early August, using a brush or cotton ball to dip the liquid persimmon can completely eliminate the second-generation larvae.
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