Disinfect and sterilize underground pests, using 10 methods

Underground pests refer to omnivorous insects that live in the soil throughout their lives or at some stage of their lives and harm the underground parts, seeds, seedlings or main stems of plants near the surface of the soil. The types of underground pests vary from place to place, and generally occur in dry farming areas. In particular, cricket, grub, golden needle insect, ground tiger and root maggot are the most typical. After crops are damaged, the lighter ones wilt, grow slowly, and dry up and die, resulting in lack of seedlings and broken ridges, resulting in reduced production. What types of underground pests are included? How can underground pests be controlled?

1. Spread medicinal soil:

When fertilizing the ground, generally use 1000-2000 grams of 2% imidacloprid granules and 30-50 kg of organic fertilizer per mu to mix evenly, sprinkle, and then prepare the ground, which can effectively kill grubs, golden needles, crickets and other underground pests. It can also treat aphids, thrips, planthoppers and other ground pests.

2. Clean the countryside:

After the first crop is harvested, remove the weeds in the field in time to reduce the number of pests laying eggs and hidden places. Before the crop emerges or the larvae of the 1-2 instar of the ground tiger are at their peak, remove the weeds in the field in time to reduce the early feed of the larvae. Bury the weeds deep or transport them out of the field to eliminate the host of egg laying.

3. Pharmaceutical seed dressing:

Mixing seeds with 35% Fumeshuang · wilting · thiamethoxam can effectively kill or repel underground pests such as grubs, golden needle insects, beetles, and crickets, and control piercing-sucking mouthparts pests such as aphids, thrips, and planthoppers in the seedling stage. At the same time, it has excellent control effect on rotten seedlings and dead trees caused by rotten seeds, root rot, and stem-base rot caused by Rhizoctonia solani and Fusarium pylori.

4. Venom root irrigation:

In plots with high density of underground pests, the method of venom irrigation can be used to control pests. When crops such as beets, corn, and peanuts are harmed by ground tigers at the seedling stage, 30% dipyrifos 300 ml can be used, 50-60 kg of water can be added, and the roots of seedlings can be irrigated at 4 pm. The insecticide rate reaches more than 90%, and both grubs and golden needles can be treated.

5. Poisonous weed trap:

Chop up fresh grass or vegetables, use 100 grams of 50% capryl emulsifiable concentrate, add 2-2.5 kilograms of water, and spray on 100 kilograms of grass. Divide into small piles in the evening and place them in the field to trap and kill ground tigers. Soak fresh poplar branches about 1 meter long in 50 times the 40% oxidized diethyl solution, take them out after 10 hours, and insert them into the spring crops at night, 10-15 branches per mu, the effect of trapping beetles is better.

6. Light trap:

The adults of ground tigers, beetles, and grubs have a strong tendency towards black lights. According to the actual situation in various places, some black lights can be used to trap and kill them during the peak of adult insects.

7. Bait killing:

① Use fried wheat bran and bean cakes to lure and kill crickets. Generally, on rainy days in the evening, dig holes in the fields, cast poison bait, and clean up the lured pests the next morning for centralized treatment.

② Placing a 'sweet and sour wine mixture' plate (or basin) can trap and kill the adult worms of the ground tiger.

Production of 'Sweet and Sour Wine Mixture': Take 0.5 kg of sugar, 1 kg of vinegar, 0.1 kg of Baijiu, 7.5 kg of water, add 15-25 grams of crystal trichlorfon, mix the above raw materials well and place them on a plate. In the evening, place them at a height of about 1 meter in the field. The next morning, take back the medicine plate to trap and kill a large number of ground tiger adults.

③ Rub 2.5 kilograms of new rapeseed cakes, stir-fry them in a pot, put the fried rapeseed cakes in a bucket, and then pour the trichlorfon boiled with warm water into the bucket for 3-5 minutes. In the evening, divide the bait into several small parts and disperse them in the fields of transplanted cotton fields. The poisoned ground tiger insects can be seen early the next morning.

8. Irrigation and insect control:

In areas where conditions permit, after the farmland is watered before spring sowing, the temperature and humidity of the soil can change, which is not conducive to the survival of underground pests such as tigers and grubs, and can cause their mortality rate to exceed 90%.

9. Ground application:

The method is: after finishing work in the evening, use a backpack sprayer, use 2 buckets of water per mu, add 2.5% of each bucket of water to kill 8 milliliters of the enemy, prepare 2000 times the liquid, stir well, and spray all over the ground.

When all kinds of ground tiger larvae come out to harm the seedlings, they are encountering the drug, causing stomach poisoning, heavy fumigation, and a few arrows to be shot simultaneously. The drug effect can be fully exerted, and all ground tiger larvae are poisoned, with excellent results.

10. Manual capture:

Using the suspended animation of the beetle to beat, protect the trees from harm, and reduce the occurrence of grubs in the soil. When the local tiger spots occur, the soil is used to capture, which has a certain effect. Manual capture can also be carried out on mole crickets to reduce harm.

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