After the corn is sprayed with insecticides, the leaves are rolled and some are yellow, how to solve

After the corn is sprayed with insecticides, the leaves are rolled and some yellowing solutions:

Under normal circumstances, the corn itself is resistant to pesticides and generally does not need to be treated, and the growth of corn is only temporarily inhibited, and it can be recovered after a period of time, which will not affect the yield. If the drug damage is severe, the following measures can be used.

1. Strengthen field management, appropriately increase the depth and frequency of hoeing, enhance the absorption capacity of corn roots to water and nutrients, and restore normal growth and development of corn plants as soon as possible.

2. Spray plant growth regulator or foliar fertilizer, spray Yunda-120 (natural brassinolide) 1500 times or gibberellin (920) plus urea aqueous solution before 10 a.m. or 4 p.m. on a sunny day to promote the normal growth of plants and reduce pesticide damage.

Causes of foliar curling and yellowing of corn after spraying:

1. Large dosage. Failure to use the dosage according to the provisions of the herbicide, mistakenly thinking that increasing the dosage can improve the weeding effect, resulting in excessive concentration and pesticide damage.

2. Improper spraying period of stems and leaves. The safe period of nicosulfuron stem and leaf spray is the 3 5 leaf stage of corn, and the stem and leaf spray of corn below 2 leaf stage or more than 6 leaves is easy to produce pesticide damage.

3. Improper application method. Some people have insufficient understanding of nicosulfuron, and directional spraying should be used after the 5-leaf stage of corn, rather than stem and leaf spraying, if the liquid is applied to the corn heart leaves, it will cause pesticide damage. Corn sprayed with organophosphorus pesticides is sensitive to nicosulfuron, and the interval between the spraying of nicosulfuron corn fields and the use of organophosphorus pesticides is less than 7 days will also cause pesticide damage.

4. Poor performance of the sprayer or non-standard field operation. The flow rate of the sprayer nozzle is inconsistent, and the drip leaks and runs, etc., resulting in excessive local spray volume. When spraying, the spray is uneven, and the spray width is overlapped, so that the local spraying amount is too much, and it is easy to cause damage to corn.

5. Weather reasons. There is little rainfall in the early stage of corn growth, especially in the middle and low temperature and drought in June this year, the slow growth of corn reduces the resistance to herbicides, and the function of decomposing pesticide damage is reduced, resulting in pesticide damage.

If it is believed that it is caused by the application of pesticides, high-quality foliar fertilizer can be sprayed, preferably amino acid-soluble foliar fertilizer containing a variety of trace elements, and growth regulators such as brassinolide can also be applied, which can promote the normal growth of corn and alleviate pesticide damage.

Find the cause first, and if it is confirmed that it is a pesticide damage, it can be alleviated by applying foliar fertilizer.

I don't know if you spray pesticides when the temperature is too high at noon, generally speaking, cyhalothrin will not be like this, or that the concentration you match is too high, corn leaf yellow is sometimes caused by too drought and sunburn, if you really want to apply foliar fertilizer, potassium Meizi is good It belongs to the foliar potassium element water-soluble fertilizer, and I make the green seedling industry to spray this kind of fertilizer The effect is not bad.

You can go to the pharmacy that sells medicine and ask.

Summary. When the damage is light, it can generally recover on its own, and the soil can be loosened by cultivating.

When the corn was sprayed with pesticides, I accidentally applied some herbicide, and now the leaves are a little yellow, what should I do?

Hello, I have seen your question and am sorting out the answer, please wait for a while When the damage is light, it can generally recover on its own, and it can be cultivated and loosened.

Apply some fast-acting fertilizer, water, and spray urea to alleviate the condition.

The medicine I sprayed is now out of the defense, a total of 20 acres of land, and 15 acres of land with bacteria.

Can corn seedlings be medicated to death?

It is recommended that you find a merchant who buys pesticides and consult in detail how to alleviate the yellowing of the leaves after the pesticides are hit.

If the medicine is strong, there is a possibility that the medicine will die.

Is it okay to spray foliar fertilizer?

Apply some fast-acting fertilizer, water, and spray urea to alleviate the condition.

It is recommended that you go to the merchant who sells pesticides for specific consultation, so as not to affect the growth of corn.

What percentage of urea is sprayed?

This depends on the extent of your current cornmeal damage.

What should be the proportion of moderate urea in corn?

What you say is moderate is not easy to measure.

It is recommended that you communicate with the merchant selling pesticides in detail.

1.Plants lack nitrogen, the old leaves first begin to turn yellow, and then gradually turn yellow from the bottom up, timely supplement urea, ammonium bicarbonate, ammonium sulfate and other nitrogen fertilizers from the roots or leaves, or import high-nitrogen water-soluble fertilizers, you can promote the leaves to turn green.

2.Crops lack phosphorus, the whole plant will turn dark green, and no luster, the leaves will also turn yellow, timely supplement of superphosphate and other phosphorus fertilizers, can promote the leaf to restore luster.

3.Crops, fruit trees, vegetables and flowers are deficient in potassium, the leaves will be uneven, and the edges of the leaves may also turn yellow and withered.

4.Plant iron deficiency, young leaves and old leaves at the same time yellowing, young leaves of the mesophyll yellow, leaf veins green, the formation of a network of yellow leaves, generally watered ferrous sulfate, but the concentration should not be too large, can be applied in stages, to avoid burning roots.

5.Crops lack calcium, young leaves turn yellow and curl, can be applied to crushed egg shells or Ribery Yanwo imported chelated calcium and magnesium fertilizer to reduce the harm.

6.Plants are deficient in magnesium, the leaves turn green and yellow, and finally dry up and die, and calcium, magnesium, phosphorus, and magnesium sulfate fertilizers are applied in time.

Hello with Tong <>

I'll come to your question. Soybean stubble corn is prone to herbicide residue damage, and it can be mixed with Bihu 5g + Yihu 150-200ml + water 1300ml per 100 kg of seeds before corn sowing, which can improve the resistance of corn seeds, and can also promote the germination, rooting and emergence of corn seeds; Soybeans can be mixed with 35% or 50% soybean seed coating agent before sowing potatoes, and it is better to have a seed coating agent with high content of carbendazim and Fumei. Finally, I wish you a happy life.

Summary. Dear, hello, I'm happy to answer for you, I'll answer for you, rest assured<>

It may be because of the pesticide damage caused by improper use of herbicides, which makes the corn white and yellow. Some corn varieties have poor tolerance to some herbicides, as long as there is a slight overdose when spraying, or the time and method of application are wrong, or the external environment is not right when applying pesticides, it will cause pesticide damage. For example, mesotrione, although it is safer, if the dose is high and the weather is hot, it will also cause corn leaves to fade and white.

It can be used with the use of Bika foliar fertilizer when spraying to prevent pesticide damage.

What's going on with the foliar fat corn leaves yellow.

Dear, hello, I'm glad to answer for you, I'll answer for you <> of Qingjian Mountain

It may be because of the pesticide damage caused by improper use of herbicides, which makes the corn white and yellow. Some corn varieties have poor tolerance to some herbicides, as long as the spraying is slightly excessive, or the time and method of application are wrong, or the external environment when applying pesticides is not right, it will cause pesticide damage. For example, mesotrione, although it is safe and has a good reputation, if the dose is high and the weather is hot, it will also cause corn leaves to fade and white.

It can be used with the use of Bika foliar fertilizer when spraying to prevent pesticide damage.

Hello dear, the following supplement is the expansion information I found for you. Causes of yellowing of corn leaves 1, yellow leaves caused by underground pestsSome pests will gnaw on the trapped roots of corn underground, which will affect the transmission of water, so it will cause the leaves of corn to turn yellow. 2. When there is no rainfall in the planting area for a long time and the watering is not timely, it may lead to the appearance of yellow leaves, but if the water accumulation in the field is serious, it will also lead to yellow leaves.

3. If the yellow leaf corn caused by the lack of nutrients has yellow leaves, it is likely to be because of the lack of nutrients, such as nitrogen deficiency, or if the top dressing is not timely during the maintenance period, it will lead to the yellow leaves of the plant.

Hello dear, the following supplement is the expansion information I found for you. Leaf yellow remedy method 1, water management is very important, in the field drought, need to timely irrigation and watering of the corn field, waterlogging after the loss must be drained in time, pay attention to the management of pests and diseases in the later stage and top dressing. 2. Before planting corn, the bottom fertilizer pin slide must be applied sufficiently, and the follow-up top dressing and foliar fertilizer should also be timely, so as to avoid the lack of vegetarian yellow leaves in the plant.

Hello, have more questions?