What to do with corn bugs? What kind of medicine is used to treat it?

What should I do if my corn has worms? What kind of medicine is used to treat it? I'm here for if the corn has worms, you can buy some corn and bug medicine. It'll be fine for two days.

Corn raw worms should be sprayed with thrips ethyl spinosadin, or imidacloprid, or acetamiprid, or enylclothidin; Corn borer spray Bacillus thurturing, or polyhedrosis virus insecticide, or 3% for Leer granules; The drill worm sprays dichlorvos, or chlorpyrifos, or phoxanthion, or cypermethrin.

Look at what kind of bugs it is, different bugs use different medicines. 7 Corn borer (a.k.a. borer).

Lepidopteran moths are pests that often overwinter in corn stalks, cobs or stalks of sorghum and sunflowers as mature larvae. The larvae mainly feed on corn stalks and ears. Adults are nocturnal, have strong flight power, and have phototaxis.

Control methods: (1) Treat overwintering hosts and reduce the number of insect populations; (2) select borer-resistant varieties; (3) At the large flare stage of maize, before the heart leaves are first discharged and the young larvae swarm the heart leaves without being bored into the stalks, the zinc sulfur and phosphorus granules or carbofuran granules used can be directly disposed of in the bell mouth to obtain better control effects.

8 Aphids. It is a pest of the family Homoptera, mainly by adults and nymphs sting plant sap and transmitting the virus.

Prevention and control methods: (1) yellow plate booby-trap; (2) Initial spraying control: imidacloprid, dimethoate, aphid pine, aphid mist, enemy killing, etc.

In short, the occurrence of maize diseases and insect pests is multifactorial, and the types and degrees of damage also vary with different varieties, different cultivation methods and different geographical environments. Only on the basis of doing a good job in the investigation and forecasting of the source of diseases and insects, the loss of diseases and insects can be reduced to the greatest extent.

The main harm of the gray planthopper is the transmission of corn crude shrinkage virus, once the corn is infected and difficult to control, the light yield is reduced by more than 30%, and the serious harvest is lost, the disease is also known as the cancer of corn, and it must be prevented and treated as soon as possible. Pharmaceutical prevention and control should grasp four key periods, choose low-toxicity and high-efficiency pesticides, and control the whole system in order to receive good results: (1) Sowing period:

Seeds are poisoned or treated with seed coatings containing systemic insecticides or corn seed dressing agents (2) Early wheat filling in mid-May: weeds are treated with pesticides such as imidacloprid or thiamethoxam; (3) Maturity period: In the early stage of gray planthopper migration, spray with thiamethoxam or 20-30 grams of imidacloprid mixed with 50 grams of virus A, once every 3-5 days, and spray 3-4 times in a row (4) Initial susceptibility:

20 ml of cypermethrin is selected, mixed with corn special liquid fertilizer, and then sprayed with thrips, corn thrips are mainly parthenogenesis, and adults will feed on corn to reduce crop yield. It will cause patches of silver-gray spots on the leaves of the plant, and the leaves will fade green and yellow, and the damage rate can be as high as 80 90. When thrips are seriously damaged, they should be sprayed with pesticides in time for control, and 10% imidacloprid wettable powder 2000 times can be used, or 22% chlorpyrifos and imidacloprid EC 2500 times liquid, or 20% fenvalerate EC 3000 times liquid spray corn borer corn borer commonly known as arrow pole worm, corn borer, etc., belongs to the lepidopteran moth family.

Corn borer is the world's largest pest, with more than 150 species of hosts, of which corn is the most harmful. It can cause a yield loss of 5-15% per year. In the 2-3 instar larval stage, the following agents can be used:

48% chlorpyrifos EC 70-90ml mu; Cyhalothrin EC 25-50ml mu; deltamethrin EC 20-30ml mu; Cyfluthrin EC 30-40ml mu; 1% emamectin benzoate EC 5-10ml mu: 8000IU ml Bacillus thuringiensis wettable powder 100-200g mu 40-50kg of water evenly sprayed. Precautions 1 Thrips are harmful in the corn heart leaf, and the liquid medicine should be sprayed into the corn heart when spraying.

2 Gray planthoppers are good at flying, it is best to spray adjacent plots together for control, and adopt the control method from the surrounding to the middle to improve the control effect.

For the control of corn borer, you can choose to spray with insecticides such as tetrachlorantraniliprole, chlorantraniliprole, cyhalothrin, emamectin benzoate, etc. Granules are applied at the end of the heart lobe phase (large flare stage). Granules can be used as finished products, such as cyhalothrin granules, with grams per plant; or 3% phosphine granules, mixed with cinder according to 1 15, apply 2 grams per plant; or phosphine granules, 1 gram per plant; or 16000IU mg of Bacillus thuringiensis wettable powder 200 300 grams Mu Mix well with 4 kg of fine soil and sprinkle it into the heart leaves.

It can also be perfused and dipped in filaments at the panicle stage. For perfusion of male and female panicles, 20 40 ml of 6% chlorantraniliprole avermectin can be used per mu, or 20 ml of cypermethrin EC, or 20 ml of 5% fipronide EC, or 200 grams of 3 5 ml of sulfantraniliprole suspension, and the above agents are mixed with 50 kg of water. When the agent is dipped in filament, cypermethrin EC can be mixed with 50 kg of water per 20 ml, poured into a discarded mineral water bottle, and the bottle mouth is capped with a straw.

At the end of the corn powder, dip the filaments and smoke the larvae that are harmful in the ears.

The drug for the control of corn pests needs to be decided according to the type of pest, which can generally be controlled by chlorantraniliprole, emamectin benzoate and other pesticides, and the method can be sprayed, poisoned bait trapping, sprinkling poisonous soil, etc.

Summary. Sichuan pepper is insect resistant. Wrap 50 grams of peppercorns in clean gauze and put them in the middle of the vat where corn is stored (200 kg can be stored per 50 grams) 2. Grass ash.

Spread 3 cm thick broken wheat straw at the bottom of the cylinder, spread a layer of paper on it, load the corn, and when it is loaded to 10 cm in the cylinder, cover 2-3 layers of paper, and then put the plant ash cover, and the cylinder is tightly sealed with plastic film. 3. With the same 2 methods, the upper and lower parts of the cylinder are replaced with quicklime, which can ensure that the grain is free of insects for a long time. 4. Liquor.

Tie the bottle with 100 grams of liquor with gauze, put it 30 cm away from the bottom of the tank, and then fill it with corn and other grains. 5. Put gauze-wrapped aluminum phosphide in the corn jar, and the grain storage is often used to fumigate the grain. Before corn is eaten, it can be dried and ventilated, which is harmless to humans and animals.

Do you mean that the corn kernels are now insected?

The corn dregs are covered with eggs.

Corn kernels need to meet the following conditions, lack of one does not cultivate the ante, 1, the temperature is suitable, the temperature is between 18 and 45 degrees, 2, the oxygen is sufficient, the oxygen is less than 4%, will not grow. 3. Most pharmaceutics kill pests, but many residues are heavier, making food toxic.

If the corn has insects, the following methods can be used to control pests: 1. Lower temperature, quasi-low temperature of 20 degrees can limit the growth of pests. Refrigeration can prevent the growth of pests, and freezing can kill pests. 2. Drying and deworming, drying and killing the insects.

Drying at a high temperature of more than 50 degrees can drive away stored grain pests, but it is generally not thorough, and sometimes high temperature will cause damage to moisture corn. 3. Aluminum phosphide fumigation and insecticide, this is a method used by the national treasury for more than 40 years, and it is still the first choice. Insect and phosphorus mixed with corn and insects, this has a good effect on nuclear stupidity prevention, but it is more troublesome to open the macro.

Sichuan pepper is insect resistant. Wrap 50 grams of peppercorns in clean gauze and put them in the middle of the vat where corn is stored (200 kg can be stored per 50 grams) 2. Grass ash. Spread 3 cm thick broken wheat straw at the bottom of the cylinder, spread a layer of good paper, load corn, to be loaded to the cylinder 10 cm, cover 2-3 layers of paper, and then put the grass ash cover, the cylinder is tightly sealed with plastic film.

3. With the same 2 methods, the upper and lower parts of the cylinder are replaced with quicklime, which can ensure that the grain is free of insects for a long time. 4. Liquor. Tie the bottle with 100 grams of liquor with gauze, put it 30 cm away from the bottom of the tank, and then fill it with corn and other grains.

5. Put gauze-wrapped aluminum phosphide in the corn jar, and the grain storage is often used to fumigate the grain. Before the corn is eaten, it can be dried and ventilated, and it is harmless to humans and animals.

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1.The main pests of corn seedlings are armyworm, Spodoptera exigua, thrips, wheat straw fly, etc. Pesticides such as cypermethrin, phosphine, and dichlorvos can be sprayed at the 2-3 leaf stage of corn for control.

When spraying, wheat straw and weeds in the field should also be sprayed once to completely kill the source of insects; 2.The main disease of corn seedling stage is coarse shrinkage disease, which can be controlled with seed coating agent containing systemic insecticide or corn seed dressing agent before sowing, and then sprayed pymetrozine and thiamethoxam at seedling stage. The underground pests that are seriously harmful to corn at the seedling stage include mole crickets, grubs, ground tigers, needleworms, etc.

Once it happens, it is necessary to treat the symptoms and eliminate them in time. Prevention and control methods: irrigation solution, 50% kg of phosphine emulsifiable concentrate per hectare, watering 750 kg along the ridge.

Corn pests at the seedling stage include armyworm, thrips, Mongolian gray weevil, black velvet beetle, net latent sand, etc. The control of armyworm can be sprayed with 50% phoxanthion emulsion 3000 times; Spray thrips with 40% dimethoate emulsion or 50% dichlorvos emulsion diluted 1500 times, respectively; Spraying dimethoate and pyrethroid pesticides can also kill aphids, planthoppers and other poisonous insects, thereby preventing viral diseases. At the peak of thrips and gray planthoppers, the town wheel can be sprayed with 10% imidacloprid wettable powder 3000 times liquid spray control.

Corn borer can be irrigated with 90% crystalline trichlorfon and 80% dichlorvos emulsifiable concentrate, with 200 kg of medicinal solution per hectare. Corn heartworms can be mixed with naphthalene carb wettable powder, 15 30 kg per hectare, mixed with fine soil, 300 kg, stirred evenly, sprinkled around the corn roots, killing the transferred larvae; 50% phosphine EC, 50% malathion EC and 35% phoxanthion EC can be used to control brown ash moths at 750 kg per hectare.