Underground pests are important pests of crops such as vegetables. Because they grow underground, they are hidden and difficult to control. At present, the common underground pests are cockroaches, golden worms, tigers, cockroaches and root mites. These pests will bite the roots and cause diseases such as dead seedlings and root rot. How to prevent and cure? Let's take a look at the following.
First, the identification of underground pests
1, 蛴螬
It can cause chlorosis and wilting in vegetables, and a large area of ​​alopecia areata, which can cause vegetable death. Adults of the cockroach have the characteristics of sham and phototaxis, tend to be black light, and have a strong tendency to the unfertilized base fertilizer.
2, Golden Needle
It can cause seeds and tubers and roots to form holes into holes, which lead to dry and dead vegetables. Rainy, moist soil and extensive cultivation are beneficial to the occurrence of golden worms.
3, roots
Adults like to eat nectar and spoilage, often spawn on manure, and when roots are applied to unfertilized manure and poorly fermented cake fertilizer, root mites often occur severely.
4, the ground tiger
The adult tiger has phototaxis and chemotaxis, and likes to eat aromatic substances such as acid and sweet. The best control period for the tiger is before the 3rd age, because it is low in resistance and easy to control.
5, è¼è›„
The vegetable roots and stems are cut off, resulting in a decrease in the quality of vegetables and serious death of vegetables. It has a strong phototaxis, especially at nights when it is hot, humid, hot and rainy.
Second, underground pest control measures
1. Agricultural control
The soil is deep-turned 25-30cm before sowing. The purpose is to expose the eggs of the underground pests to the surface of the soil, so that they can be eaten or frozen by natural enemies. This method is very effective for the golden worm.
For larvae, the wilting grass roots can be opened for killing. For the control of the ground tiger, fresh paulownia leaves and pumpkin leaves can be used to prevent the damage in the early morning. For cockroaches, you can use watering to kill.
2, physical trapping
Using the phototaxis of pests, black light can be set in the high-incidence area of ​​pests to trap them. Configure the ratio of sugar, vinegar and water to 6:3:10, then put 0.5% of the 90% trichlorfon solution into the pot. In the evening, about 1m away from the ground, take the medicine pot and kill it.
After the vegetables have been sown, 20-25kg of bean cake can be used, crushed into powder, stir fry and add 0.5kg of phoxim, then dilute with water and stir, spread between vegetables or between plants, which has a good trapping effect. . The ground tiger can also use the fresh vegetable leaves and the paulownia leaves for drug brewing to induce trapping.
3. Biological control
Using the biological characteristics of underground pests, spray pepper water, ramie leaf water, rabbit manure water and sanitary ball water, etc., according to the corresponding proportions, effective spraying for different locations, killing underground pests.
4. Chemical control
In the past, people used to control onions, leeks and other vegetable crops were phorate and chlorpyrifos. With these bans, how to choose a good effect, cost-effective pharmacy is very important. For the nursery shed, 2 kg of 0.7% chlorochlorfenide granules can be used, and fine soil is mixed and applied.
For crops such as onions, kale, and baby vegetables, you can mix them with 5kg of fluorochlorothiazide granules and 5kg of fertilizer. Or you can water the membrane water, or plant water, or slow seedling water, use 5% lambda-cyhalothrin microemulsion 1000g + 30% thiamethoxam floatant 400g, add water to dilute the application.
The above is about the introduction of underground pest control. What more effective prevention methods are there for such hidden pests?
For the wonderful pictures and popular comments on underground pest control, you may be interested in the following recommended contents. Welcome to read.
Eggplant is also rich in nutrients, including protein, fat, carbohydrates, vitamins and calcium, phosphorus, iron and other nutrients.Especially high levels of vitamin P.It contains 750 milligrams of vitamin P per 100 grams, more than many fruits and vegetables.Vitamin P can keep hemal wall elasticity and the physiological function, prevent hardening and rupture, so often eat eggplant, contribute to the prevention and treatment of hypertension, coronary heart disease, by the way, we also provide potatoes, carrots, cabbage, red star apple, fresh red Fuji, fresh fruit, crown pear Fresh Sweet Snow Pear, fresh broccoli, eggplant, fresh new potatoes and Garlic, garlic, Ginger, welcome your order.
Fresh Eggplant,Fresh Black Eggplant,Varieties Fresh Eggplant,Fresh Organic Eggplant
Jining Sunagro Trade Co., Ltd. , https://www.sunagro-food.com