How to control pests in Codonopsis pilosula

The main underground pests harmful to Codonopsis pilosula are grubs, ground tigers, mole crickets, and aboveground pests are red spiders. Underground pest control methods: trap and kill with poisonous soil and bait. Preparation of poisonous soil: 35% endosulfan 0.5 kg 1.5 kg per mu, 15 kg soil, mixed and sprinkled in the seedling root; poison bait preparation: 1 kg of fried cake powder per mu, plus 35 grams of trichlorfon, mixed well with water, sprinkled on the border, furrow or ridge. Aboveground pest control methods: the aboveground pests of Codonopsis pilosula are red spiders, which generally occur in July, and can be sprayed with 40% dimethoate emulsion 1000 Mel 1500 times.