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When I was a child, there was no good insect repellent, so adults had to dig soil on the hillside to dry the roots of wild grass called "seed worms", dry the roots, mash them, mix them with farm manure and apply them to the fields. The control effect of soil silkworms is very good. When I grew up, I knew that the "seed worm" was actually the root of wolf venom.
It is a perennial herbaceous plant of wolf poison flower, which grows in northeast China, Qinghai-Tibet Plateau, Loess Plateau and other places.
Its roots, stems and leaves contain greater poison, which can be made into a medicinal skin to clear the blood. As a pesticide, it can also control borers and aphids, native silkworms are also known as centipedes, and adults are also known as beetles, which not only harm various vegetables, but also one of the main underground pests of many crops. I was first introduced to my hometown, which mainly cultivated hardy crops such as potatoes, peas, and buckwheat.
However, the soil silkworm is the most harmful to the potato, and a variety of soil silkworms occur when digging potatoes in autumn every year, with 4-5 in a nest for a long time. Sometimes the silkworm eats the potato as the shell, and the potato after the bite of the silkworm has a bad smell, and later the silkworm is also found in the root of the cabbage. The bird flew away and caught the insect.
What are we going to do? Try not to influence them. Country Cuisine:
There are often birds eating vegetable pests in vegetable fields.
There are a few athletes making birds on some vegetables. Vegetable plots are not sprayed with pesticides. There are often birds that go to eat insects.
This is a big no-no for vegetables. Bugs eat sprayed vegetables, birds eat insects, and can harm the bird because it may cost the bird's life. After that, there may not be so many bird vegetables.
Their partners are safer.
Some people may say that birds don't eat insects, so how can there be no medicine to prevent pests? Actually, it doesn't need to be particularly expensive, it doesn't have to be troublesome to prevent pests, and pests can be prevented. If vegetables are not available, use medicine.
For example, for yellow sticky insects hidden on the ground, pests reproduced with industrious grass without hiding plants, vegetables and wood scattered on the ground, vinegar water of a certain concentration diluted with chili water on vegetables, springs, sad lime, etc., pests, abstract pests, and even worm vegetables are found.
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Before planting crops, the land is ploughed in advance in autumn and winter, the soil is treated with medicine, the crops are dressed, and the phototaxis of the silkworm is used to trap and kill the adults of the silkworm by using a black light.
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I think the best thing to do is to bury some insecticides in the soil, so that this pest can be effectively killed.
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I think the best thing to do is to spray the pests regularly, so that the pests can be controlled.
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There are too many silkworms in the field, and the vegetables are always eaten, how to prevent and control them?
Control silkworms. The main methods are as follows:
Before planting crops, the land should be ploughed in autumn and winter in advance, so that the adults and larvae of the silkworms turn over to the surface of the land, and then some of the silkworms will be killed by the sun, and some of the silkworms will be eaten by birds, which can also effectively reduce the number of silkworms. In addition, silkworms have a certain tendency to fertilize. When fertilizing, it is necessary to use completely decomposed farmhouse fertilizer, which can not only avoid silkworm raising, but also use the heat released by the decomposed farmhouse fertilizer to kill some silkworms in the field.
For medicated treatment of soil, 4-6kg of 3% phosphine can be used.
Pellets, or mixed with 35kg of 5% toxin phosphine granules, then sprinkled directly on the soil surface, then ploughed, and then prepared for sowing, transplanting and planting, can also effectively kill soil silkworms in the field.
Crop seed coatings. For some lands where the soil is more severe than silkworms, the crops can be medicated before sowing. Choose 40% zinc sulfate.
Mix zinc sulfate, water and crop seeds well in the ratio of 1:20:1000, soak for 1-2 hours, dry and start sowing. Take advantage of the phototaxis of silkworms and use black lights.
Booby trapping adult silkworms. Place the sugar.
Vinegar and phosphine are mixed in a certain proportion to trap silkworms.
Use black light combined with sweet and sour liquid to trap and kill insects: ground silkworms have the habit of chasing black light, and at the same time like the smell of sweet and sour liquid. Setting up black lights and sweet and sour liquid in vegetable greenhouses can effectively collect and kill silkworms in vegetable fields.
Kill with a mixture of vegetable ash and wheat miscanthus: vegetable ash is alkaline and highly corrosive, which can effectively corrode the surface of silkworms. Wheat mango has sharp needles that can effectively pierce mollusks in motion.
body, the more you struggle, the better. The combination of the two has a significant effect on the control of silkworms. The method is to first sprinkle a layer of dry plant ash on the ground, and then sprinkle a layer of wheat miscanthus on top of the plant ash.
In this way, as long as the silkworm comes out of the ground and touches anything, it cannot escape the fate of death.
Manual Capture: Manual capture mainly relies on freshly gnawed seedlings to find ground silkworms, and is usually caught in the early morning. After the silkworm bites off the roots of the seedlings, they drag the seedlings into the hole to eat, and sleep in the hole after eating.
At this time, as long as you see the gnawed thread leaf, when you dig a hole, you can find the ground silkworm 2 3 cm underground and kill it.
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The soil needs to be treated, weeds need to be cleaned up on time, watering, and the selection of varieties can be better controlled.
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You should spray more pesticides, repel disasters regularly, water frequently, and remove weeds regularly, so that you can prevent and control them.
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It is necessary to spray pesticides reasonably, pay attention to the treatment of the soil, dry the soil, and plough the soil before planting.
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You can give some pesticides to the soil to kill insects, or give enough light to the soil, turn the soil more before the middle, and you can stir the seeds and medicines.
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You can go to a specialist and buy some medicine, which does not do any harm to vegetables, but can get rid of these pests and can solve such a phenomenon.
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You can go to the epidemic prevention station to buy some medicine for this insect, and then mix it in the planting land, so that there will be a lot fewer silkworms.
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You can add some corresponding pesticides to the soil before planting to spray it to inhibit the growth of this insect, so that the vegetables will not be eaten.
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You can sprinkle some pesticides at the right time to kill these silkworms, so that the harvest will be particularly good.
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You can put some pesticides on top of the dish so that these pests can be killed. The dish will not be spoiled either.
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The silkworm, whose scientific name is grub, is the larva of the beetle or beetle. As an underground pest, the silkworm can harm a variety of vegetables and crops, they have different types, according to their food can be divided into herbivorous, dung-eating and scavenging. The most harmful to vegetables is the herbivorous silkworm.
The appearance and living habits of the silkworm. The body of the silkworm is hypertrophied, mostly in the shape of "C", most of them are white, a few are yellowish-white, the head is brown, the abdomen is swollen, and there are few bristles. The silkworm hides in the soil during the day and comes out at night to feed, it has feigned death and negative phototaxis, has tropism to unrotted manure, and the larvae and adults overwinter in the soil.
The occurrence law of soil silkworms. Adults prefer to lay eggs on moist soil after watering, and each one can lay about 100 eggs at a time. Like to live in sugarcane, sweet potato and other fertilizer root plant planting areas, the harm to vegetables and crops mainly occurs in spring and autumn, adult soil silkworms bite the tender stems of plants, potato plants gnaw on the stems.
How to control silkworms.
Agricultural control measures. Mainly carry out water and drought rotation, do not use organic fertilizer that is not rotten during the growth of vegetables, remove weeds in the field in time, turn the ground to dry the soil before cultivating the land in spring, and the areas with serious harm can be manually captured to eat. After the silkworm is processed, it is directly put into the oil pan and fried, which is rich in protein and can supplement the protein required by the human body.
Pharmaceutical prevention and control measures. When plowing the land in spring, sterilize with pesticides, or sprinkle the soil with phoxanthion emulsion, which can effectively kill the soil silkworm seedlings. You can also use pesticides to mix seeds, and the agent is mixed with water and seeds with 50% octathion emulsion, and then sowed, which can not only treat soil silkworms, but also treat other underground pests.
In addition to the measures mentioned, it is also a good way to use natural enemies to control silkworms, catch insectivorous flies, black soil bees, etc., and use lights to trap them. No matter what kind of vegetables are grown, there will be underground pests to eat, but we can control them to reduce losses and improve vegetable quality and yield. I am Xiao Li, who pays attention to agriculture, supports rural areas, and cares for farmers.
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There are several reasons for this:1. Avoid daytime predators: The behavior and living habits of ground silkworms are related to their predators.
During the day, silkworms are easy prey for birds, insects, or other animals. At night, when the number of predators is smaller, it is easier for silkworms to find food without being threatened.
2. Reduce water evaporation: The night is relatively cool and the humidity is high, which helps to reduce the evaporation of water on the silkworm. Silkworms are hygrotactic insects that need to maintain a water balance in their bodies, and finding food at night can better meet their water needs.
3. Avoid high temperatures: Silkworms usually move at night because they can avoid the high temperature of the cave during the day. Silkworms are not adapted to higher temperatures, and the temperature at night is lower, which is more suitable for their life and activities.
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