Do you need to spray star anise?

In particular, it should be noted that chemical agents need to be sprayed during the flowering period of Illicium verum, mainly spraying anti-falling agents and foliar fertilizers, which can greatly increase the number of fruit sets. In addition, when Illicium verum wilts 70% to 80%, plant hormones and foliar fertilizers should be sprayed on the crown of Illicium verum to increase the nutrition of the tree and prevent the fruit from falling after flowering and freezing.

Pest control of Illicium verum;

1, killing larvae artificially. Spread a layer of film on the ground under the crown, then climb the tree and shake it one by one from the upper part to the lower part of the crown to make the frightened larvae fall to the ground, and then collect the ground larvae and kill them.

2, artificially digging pupae to reduce insect sources; Or combined with weeding and loosening the soil, cultivate the soil around the foundation 4 cm high and slightly compact it to prevent adults from appearing. At the peak of adult emergence, black light is used to trap and kill.

3. Create a mixed forest in strips or blocks, improve the forest environment, and create a suitable environment for natural enemies such as birds, frogs and parasites, so as to control the occurrence of inchworm.

4. Biological control. Beauveria bassiana powder was applied in March and April, and the larvae were sprayed with1~ 200 million spores /ml Bacillus thuringiensis solution in July and August.

5. Drug control. 90% trichlorfon crystal or 80% dichlorvos EC 500 ~ 1000 times solution or 10% cypermethrin EC 2500 ~ 3000 times solution can be used to kill larvae.