Various pest methods in the cultivation of radical facilities

In order to eradicate pests in facility cultivation, it is necessary to adhere to the ventilation openings of the facilities to install insect nets. Before planting the seedlings, implement high-temperature sheds and eradicate worms; net seedlings should be planted when entering the house; the greenhouses will be closed and closed at ordinary times, and facilities will be closed. Pest harm can no longer occur.

After planting the seedlings and finding a small amount of pests, they must immediately take the diuretic fumigation, or extermination smoke smoke to control. Fumigation should be done once every 5 to 7 days for 2 consecutive times in order to achieve complete eradication.

Using dichlorvos fumigation to exterminate insects, the crops in the facility must be sprayed 600 times “Tianda-2116” 1 to 2 days before the operation to improve the plant's resistance to stress, and in particular to increase the plant's resistance to high concentrations of dichlorvos. Performance, to prevent fumigation, dichlorvos damage plants.

Dichlorvos fumigation method to eliminate pests, should change the fumigation at night when the low temperature during the daytime high temperature fumigation, prolong the fumigation time, improve the control effect. Fumigation should be carried out at 9:00 a.m. on sunny days. It should last until the end of the curtain drawing on the 2nd day. Then it should be ventilated and ventilated. After 1 or 2 hours, it can enter the facility for management. When fumigation occurs, the temperature is high, the pests have strong respiration, the amount of inhaled drugs is large, the duration is long, and the insecticide is thorough. If it can be carried out continuously for 2 times in 5 to 7 days, the adult larvae and eclosion which can infest the remaining eggs can be extinguished immediately, and the problem can be solved without leaving any trouble. In the future, as long as the facility vents are equipped with insect-proof nets, strict implementation of technical regulations during operation will ensure that insecticides will not be sprayed in the facilities and pests will not occur.

When dichlorvos are fumigated, the temperature inside the facility must be observed. When the high temperature is at noon, a small amount of grass curtains can be properly shaded to prevent the temperature in the shed from being too high and damage crops.

In addition, the whitefly has a strong tendency towards yellow color. It can use yellow cardboard in the shed to cut into 10.2 meters long strips. Apply a layer of viscous oil (10th motor oil plus a little butter and mix thoroughly). Each acre facility is uniform. Dispersing and suspending 30 to 35 pieces, the hanging height of the insecticide cardboard and the same height of the plant can effectively eliminate the whitefly adult and reduce occurrence. After the cardboard is covered with white powder, it can be oiled again (recoated every 7-10 days).

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