Comprehensive methods for controlling Underground pests of Chinese Medicinal Materials

The main results are as follows: 1. Deep ploughing of soil 35cm in winter destroys the survival and overwintering environment of insect pests and reduces the density of insect population in the following year.

2. Manure treatment of immature farm manure is a place for underground pests to spawn and reproduce. Therefore, fully mature farm manure should be applied to medicinal plants, and 5% carbaryl 500g per mu should be used for harmless treatment with good results.

3. After harvesting the previous crops in the field, the weeds in the field should be cleared in time to reduce the number of overwintering larvae and pupae. At the same time, during the growing period of traditional Chinese medicine, the weeds in the field should be shoveled out in time and deeply buried or transported out of the field for retting fertilizer.

4. Seed dressing with 3% carbofuran granule 1kg per mu can control underground pests such as golden needle worm, mole cricket, grub, yellow ant and ground tiger.

5. When root irrigation occurs, if it is found that the seedlings are broken and the larvae enter the soil, 2.5% of the enemy can kill 6000 times of the liquid or 4000 times of the liquid to irrigate the roots once every 8-10 days for 2-3 times, which can kill underground pests such as ground tigers, grubs and golden needles.

6. Spread poisonous soil with 50% phoxim EC 500g, mixed with fine sand or fine soil 25-30kg, ditched beside the roots of medicinal plants, and then covered with soil or combined with ploughing, the poisonous soil was applied to control a variety of underground pests.

7. The effective methods of trapping and killing adults are usually as follows: the adults of ① beetle, ground tiger and mole cricket have a strong tendency to black light, which is trapped and killed in the peak period of adults. ② diluted with 100g methomyl EC and water 1kg, sprayed on 100kg fresh grass or chopped vegetables (about 16cm), mixed into poison bait 25kg to kill tigers, the effect is better.

8. Spraying on the ground with 2.5% enemy killing 2000 times liquid in the evening can control all kinds of underground pests in the medicinal material nursery ground.

9. Plant application when the seedlings of medicinal plants show holes, defects and other symptoms, the leaves are sprayed with 1000-fold solution of 90% trichlorfon or 1000-1500 times of 50% diazinon EC. When the adult occurs, it is sprayed once every 7-10 days in the evening and sprayed continuously for 2-3 times to control pests.

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