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 base of Chinese Cabbage. After 2 to 3 days, they hatch into small quails, which are roots. The root worms then drilled into the soil, biting the epidermis of the roots of the Chinese cabbage, and facilitating the invasion of pathogens in the soil, causing the 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:
I. Soil treatment Before planting Chinese cabbage, 3 to 4 kg of methamidophos per acre or 2.5 to 3.5 kg of phoxim granules may be mixed with the fertilizer and then applied to the soil to kill eggs and larvae of the flies. .
Second, the ground spray When the cabbage grows to 2 or 3 true leaves, 0.5 to 1 kg of omethoate powder can be used per acre to spray the ground on the field to prevent seed flies from entering the field to lay eggs.
Third, the cabbage root application in the cabbage grow to 6 to 8 leaves, use grass ash, lime powder and 2.5% trichlorfon powder mix, the ratio is 2:1:1, spread around the roots of the vegetable to prevent the fly species Spawning and killing larvae prior to burial.
IV. Irrigation of pesticides When it is found that the cabbage in the field is harmful to roots, it is necessary to immediately irrigate the roots with 600-800 times of 90% crystal trichlorfon and kill the root fleas to avoid or reduce the damage.
China leading manufacturers and suppliers of Medical Tray,Kidney Shaped Tray, and we are specialize in Disposable Medical Tray,Disposable Plastic Basin, etc.
Medical Tray,Kidney Shaped Tray,Disposable Medical Tray,Disposable Plastic Basin
Luck Medical Consumables Co.,LIMITED , https://www.luckmedical.com