What are the precautions for using pesticides in the shed?

First of all, it is necessary to do a good job of ventilation, and it is also necessary to choose the right product according to the variety planted, and it is also necessary to pay attention to the dose, and it is necessary to wear protective clothing, and then it is also necessary to take a bath in time and change clothes in time.

Be sure to ventilate in time, pay attention to the concentration of insecticides, take protective measures to prevent poisoning, and also pay attention to the time of spraying.

The correct selection of aerosols should be based on the type of pests and diseases, and the right pesticide and insecticide varieties should be selected. If multiple pests and diseases occur at the same time, a composite aerosol needs to be chosen. The medicine must be a small package product of a regular manufacturer, with a weight of 40-50 grams per package, so that the trouble of large packaging can be saved when used.

Do not dilute aerosols into solutions for use, such as spraying or irrigation. The shed should be sealed well before spraying. Before using pesticides and pesticides, carefully check the sealing of the whole shed, repair the leakage and gaps of the shed film, close the ventilation holes, and ensure that the whole shed is sealed.

Strictly control the amount of pesticides. According to the size of the shed, the content of pesticide active ingredients and the different growth periods of crops, the amount of pesticides is determined by Heqing Mululi. The dosage of tall greenhouses should be more, otherwise the dosage should be less; The dosage of aerosol with high active ingredient content should be small, otherwise the dosage should be increased; In the early stage of crop growth, due to the young seedlings and poor drug resistance, they are prone to pesticide damage.

Doses should be reduced as appropriate. <>

The pressure sprayer with good quality and performance should be selected, which does not leak medicine, does not leak air, and is easy to operate. Equipped with linear nozzles, the former for gap spraying and the latter for spraying general surfaces, and fan nozzles. Spraying should be done after dinner.

First, it is convenient for the development and management of the work of pest control companies, especially in public canteens and kitchen operating rooms, which are inconvenient to work during the day; Secondly, because cockroaches begin to live and resist movement after dusk, controlling insect pests at night can improve the insecticidal effect. When spraying, close the doors and windows, fans and exhaust fans, and seal for 1 hour after spraying to prevent the drug from being lost with the wind and cockroaches escaping. Open the cabinet door, open the drawer of the table, and spray it inside.

At the beginning of spraying, spray a barrier belt at the entrance of the passage such as doors and windows, so that the pest can also come into contact with the drug when it is in contact with the drug. Prevent escape from these entrances and exits. Then spray from the outside to the inside, from top to bottom.

Spraying height: wall meters. For ground where pests often crawl, trap spraying is carried out using fan-shaped nozzles.

Cabinets, countertops, corners, and wall joints can all be sprayed. <>

You can first mix the insecticide into the water, and then put the finch in the watering can, and go directly to the greenhouse to spray it.

First of all, you should choose the right insecticide, and you should choose a good insecticide with a good effect, and then spray it on the leaves or roots, and you must pay attention to the amount of spraying, not too much.

When spraying pesticides, be sure to wear a mask and protective clothing so that you don't hurt yourself.

Answer: Greenhouse insecticide is the same as ordinary farmland, what insects are killed, but insecticide in greenhouses is less pesticides than insecticide outside sheds.

The air flow in the greenhouse is reduced, and there is less wind, so the insecticide in the greenhouse is easy to be effective, and the amount of pesticides can be reduced.