What pesticides are used in corn rice seed dressing

Corn is mixed with Leken 2 of Beijing Leken Company, which can achieve three effects: 1. The effect on underground pest control is obvious; 2. Control aphids in the later stage of corn; 3. Prevent corn roughness disease.

Rice with Leken 9 seed dressing, can prevent and control rice planthopper and rice seedling disease, the effect is obvious.

This has to be selected according to the main local corn pests and diseases, and there is no fixed one suitable pesticide.

To put it simply, in some places, corn seedling diseases are serious, so fungicides must be used to dress seeds; In some places, there are serious aphids at the seedling stage of corn, so you have to use insecticides to dress the seeds; So, it's based on the type of pest you want to control.

The most widely promoted seed dressing on the market is Gaoqiao, but if you feel that Gaoqiao is expensive, you can choose some seed dressing agents from large domestic manufacturers with the same content as Gaoqiao, such as Nopuxin's Yuezhong and Ace's Shuangqiao, and the current technology seems to be not very mature on rice, which will cause the germination rate to be low.

Corn seed dressing with Fulder"The corn is well mixed", the corn is mixed abundantly, there is no aphid rough shrinkage disease, the rod is labor-saving, the yield increases, and the farmers have a good harvest every year!

For rice dressing"Easy to mix", prevent the occurrence of gray planthopper, rice koji disease and sheath blight, and improve the germination rate of direct seeding rice!

With Gaoqiao, 10 ml can process 2-3 kg of seeds, and as long as corn is treated with Gaoqiao, there are basically no underground pests and aphids in one season; Rice can be treated with high skill, which can prevent and control rice planthoppers and effectively prevent black streaked dwarf disease in southern rice.

The commonly used pesticides for corn include amisida, powdery rust rather wettable powder, tantarone, parachloride, bromobenzonitrile, nicosulfuron, sulfonesulfuron, formamidosulfuron, atrazine and so on.

Common maize pests and diseases and control methods.

1. Large and small spot disease.

Large spot disease mainly harms leaves, and can be dangerous bracts when severe, and it is a blue-gray spot at the beginning of the disease, and then gradually spreads, and the whole leaf is covered with large irregular spots, and there is black mold on the spot. Small spot disease damages leaves and stems, and oval or rectangular spots appear at the time of onset, which can be prevented and eradicated by dilution spraying with amacida.

2. Brevear.

Bacterial wilt is extremely harmful to corn, and it is more common in the jointing stage of corn, which is not easy to be extinct, which will make the whole plant wilt die, peel off the stem, and it will be found that the pith inside turns brown. Since it is not easy to detect, but it can be prevented, the roots can be irrigated with professional chemicals.

3. Rust. Rust mainly damages leaves, and in the early stage of the disease, the leaves appear round lesions, accompanied by rust-colored powder, and spores will grow on the lesions in the later stage. These spores can safely overwinter and will be re-infected by the airflow in the next year, and gradually expand, which is extremely harmful. When selecting seeds, select hybrid varieties with strong disease resistance, reasonable fertilization, dilute with powder rust rather wet powder and spray at the beginning of the disease, and repeat spraying for the disease.

4. Iron beetle.

The iron beetle has a hard shell and lurks in the leaves, gnawing the mesophyll clean, causing the leaves to die, and when the number of iron beetles is large, it will cause a large area of leaves to die. It can be prevented by combining chemical agents and manual control, and the chemical agents should be sprayed with pollution-free pesticides as much as possible, and the leaves infested by iron beetles should be cut and burned.

5. Borers. The borer, also known as the borer, is the main insect pest of corn, often burrowing into the stems and leaves of corn to eat, destroying the stem and leaf tissue, so that the nutrients of corn can not be transported, affecting the growth of corn, and the whole plant dies in serious cases. Fill or spray with a professional insecticide to kill insects.

It is best to use 3911 to plant corn and seeds, and the insects will not eat it if they are planted in the ground, and if the insects smell the medicine, they will escape, so that the germination rate of the seeds can be guaranteed.

First pass: Spray herbicide.

There are many kinds of weeds in the corn field, the growth rate is fast, and the competition for water and fertilizer with the corn is serious, and the weeding can ensure the normal growth of the corn, so it is necessary to weed in time. The best period for the use of post-emergence herbicides in corn is the 3-5 leaf stage of corn and the 2-4 leaf stage of weeds, which is the safest and best weeding effect of corn. 100 130 ml of 30% nitrate, smoke and atrazine can be used to disperse oil suspension, mixed with 30 kg of water and sprayed evenly, which has a good control effect on duck plantar grass, quinoa, amaranth, amaranth and weeds of Asteraceae, amaranthaceae, malvaceas, cruciferous and knotweeds, as well as horsetail, cow tendon grass and barnyard grass of the Poaceae family.

The second medicine: control and kill insects.

In the process of growth and development of corn, the most susceptible natural disaster is lodging, corn in the 6 to 9 leaf stage is the best period to control the prosperity, and it is also the most serious period of grassland greed, thrips and other pests. Timely spraying of anti-wang agents can effectively prevent lodging. In the 6 10 leaf stage of corn, 30 ml of 30% amine fresh ethephon water agent + 10 20 ml of 5% avi acetamiprid microemulsion can be used to spray evenly with 30 kg of water.

It can not only prevent the corn node from being too long and lodging, but also effectively kill aphids, grass greed, beet armyworm, thrips and other pests that harm corn.

The third medicine: disease prevention and insect treatment.

The middle and late stages of corn growth are the high incidence period of corn borer, Curvularia leaf spot, corn rust, corn size spot and other diseases, and it is also the best period for the prevention and control of pests and diseases in the middle and late stages. It can be sprayed evenly with 25% pyraclostrobin 20 30 ml + 20% chlorantraniliprole suspension 10 ml with 30 45 kg of water at the corn flare stage. Because these two agents have strong systemic conductivity and a long duration of effect, they can not only control corn borer, but also effectively prevent various diseases such as rust, large and small spot disease, and ear rot in the middle and late stages.

It depends on what period, the pesticides used in different periods are different, such as in the 3-5 leaf stage of corn and the 2-4 leaf stage of weeds, it is best to spray evenly with 165-200 grams of 28% nitrate, tobacco and atrazine suspension per mu.

When we buy corn seeds, because we don't know the dosage of the manufacturer's seed dressing, we don't even know whether the insects will harm the seeds, so when the seeds are bought, we have to dress the newly bought seeds

The first type: powder rust is rather wettable powder.

This agent can prevent corn in the process of growth, can prevent corn silk smut and corn smut, but in the dosage allocation, you can use 25% of the agent plus the weight of the seed for seed dressing. In order to prevent silk smut, with 15% of the agent plus weight of the seed, such seed dressing can prevent corn powdery mildew.

The second type: biological potash fertilizer for seed dressing.

Biological potash fertilizer is a kind of biological fertilizer made by fermentation of silicate bacteria, he can convert potassium, phosphorus, iron, magnesium and silicon in the soil in the ground, and use 500 grams of biological potassium fertilizer and 250 ml of water to fuse into a liquid medicine, sprinkle on corn seeds, place them in a cool place to dry, and then sow seeds. And it is disaster prevention, but the only thing is that it needs to be watered after sowing, otherwise the harvest may not be satisfactory.

The third type: methamidophos seed dressing.

The use of this agent is 50 grams of 50% methamidophos emulsifiable concentrate mixed with water kilograms of seeds, and then the seeds are piled up, which can prevent underground pests and micests.

Fourth: carbendazim wettable powder.

This agent is similar to the effect of wet powder with rust, mainly to prevent corn silk smut and corn dry rot, and the method of use is to add 50% of the seed weight to the seed dressing. To prevent silk smut, soaking seeds in 1000 times of 50% carbendazim for 24 hours can prevent dry rot of corn.

To fight, but the disease can be prevented, you can use good fertilizer, such as imported water-soluble fertilizer, nutrition, high absorption and utilization rate, but also effective control of various pests and diseases, of course, if it is a very serious disease problem, then you need to use medicine, fertilizer can only be alleviated, can not be solved.

In the booting stage of corn, that is, after the corn appears "big flare", the female spikelets and florets of corn begin to differentiate, and timely re-application of bract fertilizer can promote the normal development of ears and increase grains, generally 14 days before heading. If the base fertilizer is insufficient and the growth of corn is weak, it is necessary to increase the amount of fertilizer, and the rotting farmhouse fertilizer and Yanwo microbial agent can be applied per mu, and at the same time, according to the soil moisture, appropriate watering to replenish the water.

Proper fertilization at the flowering stage can prolong the grain filling period of corn, promote grain filling, improve seed setting rate, and increase yield. If in the early management, the fertilization is insufficient and the soil nutrients are insufficient, it is best to apply an appropriate amount of tapping fertilizer. It can be used per mu with water-soluble fertilizer and high phosphorus fertilizer, mixed with an appropriate amount of fine soil, and applied near the roots of the plant, but do not directly contact with the root system.

If the soil moisture is insufficient, it can be used to irrigate the roots of the plants with fertilizer and water.

It is necessary to fight, but it can not be played before the seedlings, and the pesticides for insect control should be played within 6 to 10 leaves after the seedlings, otherwise the insect pests will be found.

Each place is different, and you can choose according to the local situation.

The use of seed dressing agent can kill germs, strengthen buds, and improve germination rate.

The use of seed dressing agent can sterilize and prevent diseases, improve the germination rate, and achieve the purpose of strengthening seedlings.

The use of seed dressing can be used to disinfect, strengthen buds, and improve germination rate.

Rice rice dressing with seed dressing agent can control various diseases and underground pests with high seedling emergence rate.

Before sowing rice seeds, Mai Shuping is used to dress seeds to prevent planthoppers and dwarf disease.

Rice seed dressing can effectively prevent pests and diseases.

Rice seed dressing agent has a disinfection effect and can prevent pests and diseases.

Rice sheath blight, leaf roller borer, rice planthopper is very harmful, this 1 seed dressing formula, efficient and safe seed dressing formula, after soaking, every 4 kg of rice seeds, with 24% thiofiramide suspension 40 ml 20% chlorantraniliprole suspension 10 ml 10% trifluoropyrimidine suspension 15 ml fluid boron 5 ml potassium dihydrogen phosphate, colorant can be added to ensure uniform seed dressing.

Can rice medicine be used for corn farming? It depends on the type and composition of the insecticide. Most pesticides and fungicides, as well as some plant regulators and endogenous hormones, can be used in corn planting.

But herbicides should never be used in corn planting. Once used blindly, it will cause obvious adverse consequences.

<> when it comes to choosing pesticides, many farmers are confused. In particular, the selection of pesticides, fungicides, plant regulators and plant endogenous hormones. Because from the production experience of most farmers, the above-mentioned pesticides, hormones and regulators seem to be suitable for most crops and will not cause adverse consequences to crops.

The same is true in practical applications. Because fungicides and insecticides are often just products of different brands with different names and the same ingredients.

In addition, fungicides and pesticides are not targeted at crops, but at pests and diseases. As long as the concentration and application time are well controlled, there will be no adverse effects on the crop. In particular, corn is a dryland crop with strong stress resistance and strong resistance to chemical fertilizers.

The safety of plant endogenous hormones and growth regulators is actually similar to that of pesticides and fungicides, and they are all agricultural endowment products used at the micro level. Therefore, these two agents can also be used in corn planting.

However, herbicides that may cause serious harm to crops should be carefully chosen. In particular, there are many types of herbicides, and their success and destruction are also very complex, and it is difficult for farmers to rely on their own knowledge to choose the corresponding herbicides. Most of them rely on referrals from dealers to use them.

In particular, there are certain differences in safety in different regions, so we should be cautious when choosing herbicides. For herbicides used in paddy and upland fields, there is little possibility of compatibility. For example, can herbicides such as acetyl chloride and mesotrione, which are used in corn cultivation, be used in rice cultivation?

Apparently not. Pesticides used in rice cultivation, such as pentafluorosulfonamide, cyanogen fluoride and sea buckthorn phosphorus, cannot be used in corn cultivation. However, one of the outliers is 2,4-d-butter, a hormonal herbicide that can be used on corn and rice, but in significantly smaller quantities than in rice.

It is not possible to eat corn, because rice medicine can only ** rice, corn is more fragile than rice, and the drug is likely to kill corn.

Different plants use different medicines, so rice is usually not universally used in corn. Failure to do so may result in a reduction in production.

Rice medicine cannot cure corn. Because the growth cycle and environment of rice and corn are different, the medication will definitely be different.

You can't eat corn, because rice medicine can only ** rice, corn is more fragile than rice, and medicine is likely to kill corn.