If vegetables are not treated with pesticides, what are the methods of insect treatment?

1. You can raise chickens in the vegetable field and eat the insects, 2. You can cover the vegetables with a wire net, and 3. Put a fluorescent lamp to attract insects, these insect control methods are very effective, so that the vegetables can grow well.

The first method is that all these greens can be transplanted into the greenhouse for planting, the second method is that you should maintain sufficient sunlight every day, the third method is to increase the distance of planting, try to stay away from some, the fourth method is to water more, and the fifth method is to fertilize more when planting, so that there will be no small insects on the surface.

Insects can be exterminated in a physical way, such as setting up an insect-proof net outside the circle, and then you can also place a fluorescent lamp next to the vegetable garden, and then put a large basin next to it, and then you can also choose to catch insects manually.

1. Loofah insect treatment method: mash an appropriate amount of fresh loofah with water, then filter to obtain the original solution, then mix the original solution with water, add soapy water, shake well and spray. 2. Garlic insect treatment method:

Mash 1 kg of garlic with a small amount of water, pour in 5 kg of water, filter the residue and spray. 3. Cucumber vine insect control method: mash 1 kg of cucumber vine with water, drain the water after removing the slag, and spray each kilogram of the original solution with 5 kg of water.

1. Four ways to treat vegetable insects without pesticides

1. Loofah insect treatment method.

1) Harvest an appropriate amount of fresh loofah, then put it in a container and pour a small amount of water, mash it, and filter it to get the original solution.

2) Mix the original solution and water in a ratio of 1:2, then add an appropriate amount of soapy water, shake well and spray.

2. Garlic insect treatment method:

Prepare 1 kg of garlic, then put it in a container and pour an appropriate amount of water, mash it into a puree, then pour 5 kg of water, filter the residue and spray it, which can not only control cabbage insects, but also treat aphids and other pests.

3. Cucumber vine insect control method.

1) Prepare 1 kg of fresh cucumber vine, then put it in a container and pour an appropriate amount of water, mash and remove the slag, and drain the water to get the original solution.

2) Each kilogram of stock solution can be mixed with 5 kg of water, and it can be sprayed after mixing.

4. Insect treatment method.

After the occurrence of cabbage worms, catch them in time, collect about 100 grams and mash them, then pour 400 grams of water and soak them for 1 day to let them rot, then filter the original solution, mix 50 kg of water and add 50 grams of laundry detergent, spray on Chinese cabbage to control cabbage.

Second, when the control effect of cabbage worm is good

1. Before or after planting, use irrigation and drowning, deep ploughing and fine raking to kill larvae and pupal eggs to reduce the number of insect sources.

2. Before the adult butterfly and after the larvae hatch, the pupa and larvae are manually hunted and killed, and the adults are killed with a cordyceps trap net before laying eggs.

3. Before the larvae are instar 2, spray 2000-2500 times of 1% insecticide EC or BT500-1000 times, 1000-1500 times of insecticide EC, 20% rice man, 25% chlorpyramide 3 1000-2000 times and other drugs.

4. The cabbage worm mainly damages the leaves with larvae, and the hatched larvae will sneak into the mesophyll to feed, forming a small tunnel. After 2 instars, the larvae burrow out of the tunnel and begin to feed on the mesophyll on the foliage, leaving only the epidermis and a transparent skylight. After the 3rd instar, the larvae will eat more, and after feeding on the leaves, many holes or notches will be formed, and even the leaves will be completely eaten, leaving only the leaf veins.