White radish has maggots, how to prevent it?

Some farmer friends reported that the big radish.

There is a pest in the field, the head is relatively pointed, the body is white, this insect is the radish field fly, if left unchecked, it will lead to a decrease in radish production.

Maggots are the larvae of seed flies, also known as root maggots, seed maggots, vegetable maggots, etc., and belong to the family Diptera flower flies. Adults are nearly 5 mm long, yellowish-brown in females and dark brown in males; Pupae about 4-5 mm long, oval, reddish-brown; The larvae are milky white and slightly yellowish, maggot-shaped; The egg is milky white, with reticular lines on the surface, oblong, slightly curved.

Insect eaten radish has the following characteristics: the skin of the fleshy root of the radish is eaten, the wormhole is longitudinal, not reaching the heart, and the epidermis of individual diseased parts is black. The larvae of this maggot are white and have a body length of 2 mm, which can be found.

Prevention and control methods. According to the living habits of radish flies, it is recommended to adopt the following control methods in the prevention and control:

1. Insect source control. Apply fully decomposed organic fertilizer and apply it evenly and deeply, so as to reduce the probability of adult eggs laying and fundamentally cut off the infection of eggs. After the radish is harvested, the field is cleaned up in time to reduce the source of overwintering insects and reduce the damage in the coming year.

2. Physical prevention and control. During the peak period of adult insects, set up yellow plates in the field to trap and kill adult insects, and pay attention to timely replacement.

3. Pharmaceutical prevention and control. In the adult stage, 80% dichlorvos can be used.

1500 times of emulsifiable concentrate, or 2000 times of cypermethrin emulsifiable concentrate, or 3000 times of 20% extermination, or 21% cyanide (21% synergistic cyanide. horse emulsifiable concentrate) 4000 times liquid and other spray control.

4. The larvae can be controlled by irrigating the roots with pesticides, that is, when root maggots are found in the field, avermectin can be used.

3000 times the solution, or 5000 times the solution of 75% fly amine wettable powder, or 50% phosphine.

Emulsifiable concentrate 1200 times liquid, or 48% octa. 2000 times of tick emulsifiable concentrate (maggot) and other watering along the roots of vegetables. 1 time every 7-10 days, 2-3 times in a row, can achieve the effect of reducing the damage.

Pesticides. Because after the white radish in my house is sprayed with pesticides, the maggots are gone, so pesticides should be used to prevent and control them.

To ensure the fertility of the soil, to loosen the soil in time, to choose suitable pesticides and fertilizers according to different situations, to ensure the fertility of the soil, but also to water and fertilize in time.

First of all, when planting, we must choose the soil is more fertile and broad land, and we must use farmhouse fertilizer when fertilizing, do not use the fertilizer bought outside, and often water the plants, but also to prevent the occurrence of pests and diseases, if there are small insects, then we must spray insecticides in time.

1. Soak the cabbage seeds and radish seeds in warm water, and then mix the seeds with the ash at the bottom of the pot to make the rapeseed stick a layer of ash at the bottom of the pot. 2. When planting, mix 2-3 grains of salt in the seeds of each sting. Or sprinkle a grain of kang seed soil on each seed.

3. Sprinkle a small amount of trichlorfon water on the pit above the pit where cabbage and radish are planted. 4. Mix trichlorfon and dimethoate wheel lead, prepare 800 to 1000 times of liquid, irrigate the roots with a spray can, and fill each root to kilograms.

Radish maggot larvae can be controlled by using pesticide root irrigation, that is, when root maggots are found in the field, avermectin, fly achlor, phosphine, or maggots can be used to water along the roots of vegetables. 1 time every 7-10 days.

Bu cabbage sometimes has such a problem in the planting process, that is, maggots, and then rot, so, what to do with radish and cabbage maggots? How to control radish and cabbage maggots? The following is the first agricultural economy for you to support.

1. Soak the cabbage seeds and radish seeds in warm water, and then mix them with the bottom ash of the pot to make the rapeseed stick to a layer of bottom ash of the pot.

2. When planting, mix 2 to 3 grains of salt with the seeds in each seed. Or sprinkle a kang of oil seed soil on each seed.

3. On the pit where cabbage and radish are planted, pour a small amount of trichlorfon water.

4. Mix trichlorfon and dimethoate, mix 800 to 1000 times the liquid, irrigate the roots with a spray can, and fill each root to kilograms.

If this happens, you need to spray some bactericidal drugs, or sick worm medicines, and so on. In order to prevent this from happening, in addition, do a good job of drying the soil. In this way, you can reduce the amount of radish maggots like this.

It's very skilled, and you can get a technician to train you a little bit.

The root of the cabbage has maggots Introduction: There is sometimes such a problem in the planting process of radish cabbage, that is, maggots, and then rot, so, what should I do with radish and cabbage maggots? How to control radish and cabbage maggots? The following is the first agricultural economy for you to support.

Dear, hello, there are maggots at the root of the radish storage method as follows: 1. Find a suitable place to dig a soil pit of the right size, and then spread a layer of radish evenly in the soil pit, and then spread a layer of soil, according to this layer of radish and a layer of soil has been filling the entire soil pit, and finally cover it with soil. 2. According to the number of stored radishes, maggot bags are purchased, which are not breathable and of moderate size, and 5-10 kg per bag is appropriate.

Put the selected radish into a plastic bag and tie the bag tightly, it is best to roll it back and tie it again, and then put it indoors, such as a corner of the kitchen, that is, Liang Yanke. When the medium dregs are eaten, take out the radish to be used and still tie the plastic bag. Be careful not to damage the plastic bag during the storage process.

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