How to treat lotus root maggots? What kind of medicine does lotus root and maggot get

Drop more fry. Increase the amount of salt in the water to the appropriate amount.

Water maggot, there are many of this insects in the water stream in the south, more than an inch long, and the color is black. In the depths of summer, it became a fly and stinged people very poisonously. (Out of the unitary yang miscellaneous.)

There are a lot of maggots in the mountain ditches in the south, which are more than an inch long, and the color is black, and the body color deepens in summer, turning into flies and stinging people.

It's amazing. Control methods of water maggots:

In summer, the larvae suck the sap on the stems and roots of lotus flowers, causing the diseased leaves to turn yellow.

Prevention and control methods: generally can be driven by lime. Sprinkle 10 to 15 kg per mu, but not excessively.

1. Serious field replanting.

One or two years of dry farming or winter to remove stagnant water in the field. 2. Generally, before the germination of lotus root in early spring, the larvae emerge from the beginning of the sting to the peak period, remove the stagnant water in the field, properly plough, and mix 375 feet of fine soil with 50% phoxanthion granules per hectare and apply it into the soil to prevent and control the overwintering larvae. 3. When planting lotus root, 750 kg of lime is applied per hectare to neutralize soil acidity, which can not only prevent diseases, but also control overwintering larvae; Or apply 225-300 kg of rapeseed cake powder per hectare to prevent and control the larvae and trap insects that emerge in early spring.

4. At the beginning of the adult season, 1500 2250 grams of 90% trichlorfon crystals are mixed into poisonous soil on the hectare, and sprinkled in the early morning when the dew is not dry. 5. During the growth period of lotus root, remove weeds in the field in time, especially eye cabbage, duck tongue grass, etc., to reduce the feeding and spawning places of adult insects.

Summary. Biocontrol.

In the lotus root field, loach, eel or Chinese soft-shelled turtle are raised, and their favorite maggots can not only control the damage of maggots, but also obtain benefits through raising loaches, yellow eels or Chinese soft-shelled turtles.

What kind of medicine does lotus root and maggot get

Pro, the prevention and control of lotus root maggot can be selected with phosphine, chlorpyrifos, cypermethrin, chlorantraniliprole and other agents, the way of medicine is to mix soil and sprinkle, which is conducive to the absorption and effect of lotus root roots. If there are fish worms, shrimps, etc. in the buried field, it is recommended to use chlorantraniliprole, which is safer, and the specific method is to use 30 ml of 5% chlorantraniliprole suspension to mix 20 kg of fine soil and sprinkle it.

Biological control in the lotus root field to raise loaches, yellow eels or Chinese soft-shelled turtles, the use of ants to call them like to eat maggots characteristics of the ants return, interbreeding can not only control the damage of maggots, but also through the raising of loaches, eels or Chinese soft-shelled turtles to obtain income.

According to the occurrence characteristics of lotus root maggots, water and drought rotation can be adopted to destroy the wintering grounds of larvae. Secondly, rent a trouble, and prevent the duckweed, eye cabbage, and ducktongue grass in the lotus root field, so as to reduce the places where adults feed and lay eggs. When planting lotus roots, 50 kg of lime per mu can not only prevent diseases but also control overwintering larvae.

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Octothion granules, trichlorfon.

Lotus root maggot control method.

1. Serious field replanting.

One or two years of dry farming or winter to remove stagnant water in the field.

2. Generally, before the germination of lotus root in early spring, the larvae emerge from the peak period to the peak period, remove the stagnant water in the field, properly plough, and mix 375 kg of fine soil with 50% phosphine granules per hectare and apply it into the soil to prevent and control the overwintering generation of larvae.

3. When planting lotus root, 750 kg of lime is applied per hectare to neutralize soil acidity, which can not only prevent diseases, but also control overwintering larvae; Or apply 225-300 kg of rapeseed cake flour per hectare to control larvae that emerge in early spring.

4. At the beginning of the adult period, 1500 2250 grams of 90% trichlorfon crystals are mixed into poisonous soil on the hectare, and they are sprinkled in the early morning when the dew is not dry.

5. During the growth period of lotus root, remove the celery weeds in the field in time, especially the eye cabbage, duck tongue grass, etc., to reduce the feeding and egg-laying places of the adults.

Summary. The prevention and control of lotus root maggot can be controlled with phosphine, chlorpyrifos, cypermethrin, chlorantraniliprole and other agents.

The prevention and control of lotus root maggot can be controlled with phosphine, chlorpyrifos, cypermethrin, chlorantraniliprole and other agents.

The method of medicine is to mix soil and sprinkle it, which is conducive to the absorption and effect of the root system of the vertical lotus root. If there are fish, shrimp, etc. in the lotus root field, it is recommended to use chlorantraniliprole, which is safer, and the specific method is to use 30 ml of 5% chlorantraniliprole suspension mixed with 20 kg of fine soil.

Biological blue bush control in the lotus root field to raise mud repentance brother cherry loach, yellow eel or Chinese soft-shelled turtle, using their favorite maggot characteristics, interbreeding not only can control the damage of maggots, but also through the raising of loach, yellow eel or Chinese soft-shelled turtle to obtain benefits.

Agricultural measures can be based on the occurrence characteristics of lotus root maggots, and water-drought rotation can be adopted to destroy the wintering grounds of larvae. Secondly, the duckweed, eye cabbage, ducktongue grass and other duckweed in the lotus root field should be eliminated to reduce the places where adults feed and lay eggs. When the lotus root is planted, 50 kg of lime is applied per mu, which can not only prevent diseases but also prevent overwintering larvae.

Based on the occurrence characteristics of maggots in lotus root, it can accept the overwintering occasions of water and drought rotation and damage the larvae. Secondly, the duckweed, eye cabbage, and duck tongue grass in the lotus root field should be eliminated from the cavity sun, and the occasions for adults to feed and lay eggs should be reduced. When the lotus root is planted, 50 kg of lime is applied per mu, which can not only prevent rent-round disease but also prevent overwintering larvae.

2. Biological control in the lotus root field to raise loaches, eels or Chinese soft-shelled turtles, exercise their favorite maggot characteristics, interbreeding can not only master the harm of maggots, but also through the raising of loaches, eels or Chinese soft-shelled turtles to obtain disorderly benefits. 3

The scientific name of the insect that eats the lotus root is goldenrod, commonly known as the lotus root maggot, which can generally be dealt with by biological control. Because this worm is about prevention.

The method of combining planting and breeding can be adopted, and a certain amount of eels and loaches can be placed in the lotus root field for predation and biological control; Chemical control methods can also be used, and 3 kg of 5% phosphine particles per mu of water surface can be mixed with soil and sprinkled evenly; Or use 30 to 40 kg of tea seed cake per mu, break and soak for 24 hours before sprinkling. The latter two methods can also be used when clearing the pond before planting.

Lotus root eating root goldenrod insect Lotus root eating rooting goldenrod is the main pest of lotus root production in our county, also known as rice root leaf beetle, belonging to Coleoptera, leaf beetle. The larvae resemble maggots, commonly known as maggots or maggots, and the larvae penetrate into the mud to harm the underground stems and roots, and after entering the lotus root stage, they are harmed near the internodes of the lotus root, causing the aboveground vertical leaves to turn yellow and grow and decline; The underground lotus root body forms black insect spots (commonly known as maggot eyes), the lotus root body is small, reducing the yield and quality, generally reducing the yield by 15% and only 20%, and the fresh lotus root produced is poor. The pollution-free control technology of lotus root eating goldenrod insect mainly includes:

Lotus root replanted, ploughed the ground and dried the ground. Harvest early lotus root to avoid the peak of root-eating goldenrod insects, and at the same time, use winter planing to reduce the base of larvae overwintering. Lotus root fields are intercultured with loaches, yellow eels and other benthic fish to directly prey on lotus root goldenrod larvae.

Taking advantage of the characteristics of the peak predation period and the peak larval occurrence period of loach and yellow eel, a large number of larvae were preded. Promote the application of low-toxicity and low-residue pesticides "Ruijinte" to replace high-toxicity and high-residue pesticides such as phosphorus. According to the test results of the county plant protection plant inspection station, the county lotus root research institute and other relevant departments, the control effect of 5% Ruijin special suspension agent on lotus root goldenrod is more than 80%, which is 10 30% higher than the basic effect of methylphosphine and carbofuran, and has high efficiency and low residue, except for the slightly higher toxicity of shrimp, crabs, bees, etc., it has low toxicity to humans and animals, and has little or basically no impact on beneficial organisms.

The application method is: 100 150ml of 5% Ruijin special suspension agent per mu is diluted with water, and then mixed with 10kg of fine soil, and sprinkled before and after the lotus root seedlings are planted in the field. Care should be taken when administering the application:

Ruijinte shrimp and crab have high toxicity, and the interbreeding field should not be used, and the use of Ruijinte field water should also be prevented from flowing into shrimp and crab ponds. In addition, if the soil is acidic, 50kg of lime can be sprinkled per mu before planting lotus root in early spring to neutralize soil acidity, which can not only enhance plant disease resistance, but also kill some overwintering root-eating goldenrod larvae.