The larvae hatched in the base tunnel of the trunk and hatched in mid-April of the next year. The first-instar larvae fed on humus and turned to the roots of the tree neck after 2-3 years of age. Adults appeared from late August to September.
Control methods
1. Protection of natural enemies, insectivores, predatory beetles, and parasitic flies all have a certain inhibitory effect on the amount of bat moths.
2. Check the orchard and find that when there is a worm pack at the base of the trunk, remove the worm pack, insert the wormhole with a thin wire, and stab the larvae. Or with 50% dichlorvos 50 times drip injection, or with a cotton ball vinegar stuffed into the fistula hole, or with aluminum phosphide tablets, 0.1 g per hole can be blocked with wet mud mouth, poisoning larvae.
3. Remove the miscellaneous woods near the orchard, such as host plants such as vitex, wild tung.
4, combined with pruning, cut off the injured vine burned.
5. During the period of ground activity, the first-instar larvae can spray 10% cypermethrin 2000 times under the canopy to eliminate 2, 3rd instar larvae.
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