What are the control methods for Angelica sinensis pests and diseases?
How do you control diseases and pests in Angelica sinensis? Please explain the methods. Here are several control methods for Angelica sinensis pests and diseases for reference: Root rot: soak the seedlings in 1:1:150 Bordeaux mixture, sterilize and kill insects in the soil: burn and smoke the soil more in the seedling bed. Brown spot: pay attention to field hygiene, promptly remove diseased leaves, and in the middle and late stages use 1:1:150...
How do you control diseases and pests in Angelica sinensis? Please explain the methods
Here are several control methods for Angelica sinensis pests and diseases for reference:
Root rot: soak the seedlings in 1:1:150 Bordeaux mixture, sterilize and kill insects in the soil: burn and smoke the soil more in the seedling bed.
Brown spot: pay attention to field hygiene, promptly remove diseased leaves, and in the middle and late stages spray 1:1:150 Bordeaux mixture once every 7 days.
Pests: mainly the peach aphid, commonly known as "youchong." It multiplies in large numbers during May, gathering densely on the undersides of new shoots and tender leaves of Angelica sinensis to suck sap, causing the heart leaves and tender leaves to thicken, curl up in a fist-like shape, and the plant to become dwarfed.
Control methods: clear the weeds around the field to reduce opportunities for aphids to move in; when aphids appear, spray 40% dimethoate 2000x solution or 5% fenitrothion 1000x solution, once every 5-7 days, for 2-3 consecutive times.
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