1, artificial prevention: artificially cut off the net curtain. Using the habit of netting before the fourth instar of larvae, the net curtain is cut manually in time to completely eliminate the larvae in the net curtain; Using the habit of mature larvae pupating under the tree, the pupating larvae under the tree were trapped by tying grass stems to the trunk, and the larvae were eliminated centrally.

2. Natural enemy control: using natural enemies to control. Natural enemies in egg stage: Chrysopa, ladybug; Natural enemies in larval stage: spiders, lacewings, mantis; 1-3 instar larvae: spiders; The mortality rate caused by spiders is about 30%-90%. Pupal stage: parasitic flies.

3. Physical control: trapping and killing adults with black light. Insect-trapping lamps should be set in the open space where serious accidents occurred last year in order to achieve ideal control effect. Spray and poison the lamp to attract adults within 50- 100 m of the lamp center.

4, biological control: releasing the Zhou's biting wasp in the larval stage and the early pupation stage; Spraying BT at the pre-3rd instar larval stage is highly toxic to adults. In the late larval stage, matrine is used to spray smoke or spray for prevention and control; Nuclear polyhedrosis virus: safe for people and livestock, does not kill natural enemies, and the control effect is as high as 90%.

5. Biomimetic preparation control: Biomimetic preparation can be used for spray control in larval stage, and the main chemicals available are: 25% diflubenzuron III, 20% diflubenzuron and 20% hexaflumuron.

6. Chemical control: When entering the advanced stage of larvae, chemicals with low toxicity and low residue can be selected for smoke spraying or spray control. The available chemicals include pyrethroid emulsifiable concentrate, beta-cypermethrin emulsifiable concentrate and deltamethrin emulsifiable concentrate.

7. Sex pheromone attraction: In the adult stage of mild occurrence area, use its sex pheromone to attract and kill male adults. The height of the trap should be 2.0-2.5 m in the lower branch of the crown in spring and 5-6m in the upper branch of the crown in summer. Set a trap every 100 m with a trapping radius of 50 m. During use, replace the dichlorvos cotton balls placed in the trap every 3-5 days to ensure the fumigation effect. The decoy core can be used for the second generation. After the first generation is used, the bait core is sealed with film and stored at low temperature, and the second generation can continue to use.