Prevention and Control of Chinese Cabbage Roots

November 01, 2024

Rootworm is one of the main pests that harm cabbage. Root larvae are larvae of flies. The flies look like ordinary house flies. Its eggs are produced on the back of the cabbage's basal pedicel, and hatch into small pods after two or three days, that is, root pods. The root worms then drilled into the soil, biting the epidermis of the roots of Chinese cabbage, and adapting to become pathogenic bacteria in the soil, causing Chinese cabbage to rot. Without timely prevention and control, the entire field can be victimized and no one is spared. How to prevent and treat Chinese cabbage roots? The main methods are:
First, soil treatment. Before planting Chinese cabbage, 3–4 kg methamidophos, or 2.5–3.5 kg phoxim granules per acre can be mixed with the fertilizer and applied to the soil to kill the eggs of the flies. And larvae.
Second, the ground spray. When Chinese cabbage grows to two or three true leaves, 1-1.5 kg of methamidophos powder can be applied per acre, or 0.5--1 kg of omethoate powder can be used for field ground dusting. To prevent the breeding of eggs into the field.
Third, vegetable root application. When Chinese cabbage grows to 6-8 leaves, mix it with plant ash, lime powder and 2.5% trichlorfon powder in a ratio of 2:1:1 and apply it around the vegetable root to prevent the fly from laying eggs. And kill the larvae before entering the soil.
Fourth, the drug irrigation root. When it is found that the Chinese cabbage in the field has a root damage, it is necessary to immediately irrigate the roots with 600--800 times of 90% crystal trichlorfon to avoid or reduce the damage.

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