Mites sometimes appear in the process of growing garlic, what kind of medicine should be used to tre

Friends who have grown garlic know that mites sometimes appear during the planting process.

How does garlic prevent mites?

1. Strictly select the seeds before sowing, remove the garlic cloves with pests and diseases, and then use 80% dichlorvos.

The emulsion is soaked in 1000 times solution for 24 hours, and the acaricidal effect can reach 100%. After the garlic is crushed, the remaining garlic skin, roots, garlic seedlings, and garlic stems are burned in a centralized manner to reduce the source of infection.

2. When sowing, first sprinkle ephedrine particles evenly in the sowing furrow, 3 4 kg per 667 square meters.

3. Green onions, onions, and leeks should not be cropped continuously, nor planted side by side, and 3 or 4 years of rotation should be implemented.

4. During the growth of garlic in the field, water the roots with 80% dichlorvos emulsion 300 400 times.

5. Remove the damaged plants in the field in time, burn or bury them deeply to reduce the source of mites.

6. If mites are found to be harmful during the storage of garlic, sulfur powder can be used.

Fumigation. Use 100 grams of sulfur powder per 1 cubic meter of space, add a small amount of wood chips, stir well, put it in a container, put it in the garlic storage room, close the doors and windows after lighting the lamp, fumigate for 24 hours, the effect of killing mites is 100, but it is effective for eggs. Ineffective, the eggs can be fumigated once after hatching.

Garlic is a common symptom of mite disease.

1. Caseinous mites: It is a worldwide pest with wide distribution, fast reproduction and great harm. It is mainly the destruction of garlic storage, and in recent years, it has also occurred from time to time in garlic fields. In garlic with eggs, nymphs.

or adult mites overwinter together. Adults lay their eggs in the crevices of the base of the garlic cloves on the garlic bulbs, or in the holes in the injured parts. They mostly lay eggs in piles, and a few are single.

Cheese mites live in groups and prefer to live in moist, moldy environments. When adults and nymphs damage garlic, start eating: the surface of the garlic clove will gradually eat into the inside of the garlic cloves, forming many irregular holes.

Injured garlic will rot in a humid environment, but will wilt and wilt in a dry environment.

3. Root mites: widely distributed, reproduced quickly, and seriously harmed. They are dangerous pests in garlic fields and during storage.

Adults and nymphs overwinter in garlic plants or soil, and their eggs can overwinter in garlic bulbs. Adults lay eggs in a depression at the base of the garlic bulb. Most of them are single or several, and tend to occur in acidic sandy soils rich in organic matter.

Adults and nymphs feed on the bulbs of garlic plants, causing the damaged bulbs to rot and stink, and the ground parts to wither and die.

If mites are found during the storage of garlic, sulfur powder can be used for fumigation. 100 grams of sulfur powder per 1 cubic meter of space, add a small amount of sawdust, mix well and put it in a container, put it in the garlic storage room, close the doors and windows after ignition, fumigate for 24 hours, the acaricidal effect is 100%, but it is ineffective for the egg, and it can be fumigated once after the egg hatches. Do not plant with green onions, onions, leeks, and do not plant next to each other, and implement 3 or 4 year crop rotation.

Before sowing, the seeds are strictly selected, the garlic cloves with diseases and insects are eliminated, and then the selected seed cloves are soaked in 1000 times of 80% dichlorvos emulsion for 24 hours, and the acaricidal effect can reach 100%. The remaining garlic skins, garlic roots, garlic sprout residues and stems should all be burned in a centralized manner to reduce the source of infection.

At the time of sowing, 1 per mu should be damaged with 800 1 000 times of nicotinine EC or 6 000 times of 10% Uranus EC, 2 000 times of 73% gite EC, and 3 000 4 000 times of 15% net EC of sweeping mite.

Can be fumigated with sulfur powder**. An appropriate amount of sulfur powder per 1 cubic meter of space, add a small amount of sawdust, mix well and put it in a container, put it in the garlic storage room, close the doors and windows after ignition, and fumigate for 24 hours, the killing effect is very good.

Use 100 grams of sulfur powder for every 1 cubic meter of space, put it in the garlic storage room, close the doors and windows after ignition, and fumigate for 24 hours, so that it can be effectively solved.

What are the main pests and diseases of garlic? How to prevent it? Garlic is an overwintering crop, and the common diseases mainly include gray mold, leaf blight, purple spot and yellow spot of garlic sprouts. The main insect pests are aphids, root maggots, allium thrips, etc.

The main pest control measures are briefly introduced as follows:

1.Purple spot disease: spray 70% mancozeb wettable powder at the initial stage of the disease; or 75% chlorothalonil wettable powder 500 times liquid, or 64% alum wettable powder 400 500 times liquid. Once every 7 10 days, spray 2 times in a row.

2.Leaf blight: After the onset of the disease, spray 500 600 times of 50% tobuzin wettable powder, or 500 times of 75% chlorothalonil wettable powder, or 1000 times of 50% dry wettable powder for prevention and control. Spray once every 7 days, 2 3 times in a row.

3.Botrytis cinerea: After the central diseased plant is found in the field, it should be removed or treated in time with 1500 times of 50% Sukrin wettable powder, or 1000 times of 50% promethane wettable powder.

4.Root maggot (garlic maggot): After the occurrence of garlic field, inject 4000 times of pyrethrin solution or avermectin solution into the root soil; Adults can also be trapped, the proportion is 6 parts of sugar, 3 parts of vinegar, 1 part of liquor, 1 part of 90% trichlorfon powder, mix evenly in a pot, put it in the field, and wait for a sunny day to trap it.

5.Allium thrips: When found, it was sprayed with a mixture of 40% dimethoate emulsion and 80% dichlorvos emulsion 1500 times.

6.Aphids: pesticide control, imidacloprid, four seasons red, etc., pay attention to different pesticides to be sprayed in rotation. Physical control, use a yellow organic oil plate to trap aphids in the field, or use silver-gray plastic film to cut into strips of cloth about 20 cm wide, and put them in the garlic field to reject aphids.

The dosage and precautions of the medicine must be used with reference to the corresponding instructions.

We look forward to your attention and valuable comments on rural affairs.

There are four main types of garlic diseases: fungal diseases, bacterial diseases, viruses and nematodes. Fungal diseases mainly include leaf blight, leaf spot, rust, gray mold, white rot, and sclerotinia sclerotinia. Bacterial diseases include bacterial soft rot, viral diseases such as garlic mosaic disease and garlic nematode disease caused by nematode infection.

Garlic insect pests mainly include garlic maggots, thrips, aphids, leaf miners, grubs and coffee bean elephants.

Pharmaceutical control measures for various pests and diseases of garlic.

Onion thrips. It can be sprayed with 6000 times of killing liquid, 1000 times of 50% octane emulsifiable concentrate, 1000 times of 50% dimethoate emulsifiable concentrate, 1500 times of 10% chrysanthemum and horse emulsifiable concentrate, and 7000 times of 25% synergistic quinthion emulsifiable concentrate.

Root maggots. Both adults and larvae should be controlled. The control of adult insects is to kill 6000 times the liquid and 3000 times deltamethrin to isolate 7 times

Garlic cockroach. If it occurs in large quantities, it can be prevented by spraying 2000-4000 times of liquid.

Coffee bean icon. It can be fumigated with 6g m2 of aluminum phosphide.

After the garlic is planted, you can spray some pesticides and insecticides when small radish flies and flies occur, such as trichlorfon, and you can also irrigate the roots to prevent the damage of flies and maggots.

Deterin granules: To control grubs, mix Deterin granules with the soil and sprinkle them in the field. Available:

To control root mites, spray diluted 1000 times of available thiophos. Octophos EC: To control bacteria and flies, spray 800 times of diluted phoxanthion EC.

Dichlorvos EC: Spray 80% dichlorvos EC to control tigers.

1. Deterin granules

Grubs are omnivorous pests, will eat the roots of garlic seedlings in the field, causing the whole plant to die, in order to control this insect, to remove the weeds in the field in time after the sprouting, and do a good job of water and fertilizer management, you can also mix the Deterin particles and soil, and then sprinkle on the roots of the field.

2. Available thion

Root mites and stem nematodes are two pests that can harm the fibrous roots and bulb endothelium of garlic, causing the plant to turn yellow, slow down the growth rate, and die when the disease is severe, further causing a reduction in yield.

3. Zinc sulfur and phosphorus emulsifiable concentrate

Bacterial flies are pests that often appear on the feces, which will harm the garlic cloves, especially in the swelling period of garlic, this pest will cause damage to the garlic cloves by drilling into the field through rotten debris, and the control of this pest can be sprayed with diluted phoxanthion EC 800 times.

4. Dichlorvos EC

Tiger is a common underground pest, mainly harming the underground part of the garlic and leaves, after being eaten there will be many small holes in the leaves, and can drill into the bulb, bite off the whole garlic plant, to prevent and control this disease, can be sprayed with 80% dichlorvos EC.

The main diseases of garlic are purple spot, leaf blight, rust, mosaic disease, bacterial soft rot, etc.

Its integrated prevention and control technologies are:

1) Selected garlic species: as far as possible, use detoxified garlic, disease-resistant garlic, disease-free and robust garlic species, select garlic species before sowing, and use "Tianda-2116" (special type for soaking and dressing) 2 bags per mu, mixed with kilograms of water, and evenly spray garlic seeds.

2) Crop rotation planting: choose loam or sandy loam land with flat terrain, convenient drainage and irrigation, rich soil organic matter, strong water and fertilizer retention ability to plant garlic, and avoid continuous cropping or heavy stubble with lily crops such as onion and garlic. Insist on alternating planting garlic with wheat, corn and other grasses to reduce the occurrence of diseases.

3) Clean the field: After the garlic is harvested, remove the diseased leaves, stems and other residues and films in the field in time, and turn the soil more than 25cm deep to eliminate the residual germs in the soil. Before sowing garlic, it is necessary to turn the soil deeply, dry it for more than 15 days, reduce the number of soil residual pathogen groups, and increase the application of organic fertilizer, potassium fertilizer and micro fertilizer to improve the nutritional level of garlic, promote the health of seedlings, and improve disease resistance.

4) Mulching reduces soil moisture evaporation, increases ground temperature, reduces the number of irrigation and the chance of germ transmission.