How to solve the pesticide damage of cucumber!! Cucumber pesticide damage, what is the best way to s

Inhibition of growth occurs after the occurrence of drug damage. Gibberellin (ninety-two0) 30-50 mg kg can be sprayed, and then combined with 100 times of white sugar. If the leaves are rapidly twisted and drooping, you can immediately spray 100 times the liquid of white sugar water.

Generally, the drug damage can be quickly relieved. If the pesticide damage caused by herbicides is not very serious, you can spray 500 times the solution of anti-disease carb or virus K, and for the plants that seriously inhibit growth, you can use the stock solution to apply the growth point. For other pesticide hazards, the following pesticides can be eliminated and alleviated.

1) Sunflower, anticarb or virus K, natural brassin.

2) Vegetable + plant multi-effect auxin.

3) Foliar spraying of zinc sulfate 600-700 times to promote the production of erythroxin by the plant itself, so as to relieve and slow down the pesticide damage.

Pesticide damage refers to the abnormal growth of cucumbers or physiological disorders after the use of pesticides. There are two kinds of acute and chronic drug damage, and acute drug damage has obvious symptoms from a few hours to 3 or 4 days after spraying, and develops rapidly, such as burns, wilting, falling leaves, falling flowers, and falling fruits. Chronic pesticide damage occurs after a long time after spraying, and due to the obstruction of physiological activities, it is often manifested as restrictive macula or flowering and leaf-like spots on the foliage; The new leaves are rapidly yellowing and whitish; The leaf margins of old or new leaves are curled or necrotic and dry; The leaf margins first turn yellow, then spread throughout the leaves, and finally die; The veins of the leaf margin turn white, and the veins of the leaf quickly yellow, dry up, or small white necrotic spots appear between the veins, or the veins of the leaf first turn yellow, and then turn white to bronze; The top of the plant is dry or the whole plant wilts and withers quickly.

The occurrence of pesticide damage delays growth and affects yield, and the severe damage may destroy the field and cut off the harvest, so effective measures must be taken to prevent and control it.

After cucumber pesticide damage, growth regulators such as brassinin or Bihu can be sprayed to alleviate the pesticide damage, and at the same time, water and fertilizer can be replenished to promote the recovery of plant growth. When spraying the regulator, you can add some potassium dihydrogen phosphate, urea including some medium and trace elements, and supplement nutrients after resuming growth.

1. After the cucumber is damaged and the growth is slowed down, you can use 30-50 mg of gibberellin per kilogram, and then dilute 100 per bucket of water (15-20 kg) with 150-200 grams of sugar, and spray the plant. If there is severe inhibition of growth, smear the growth point with gibberellin stock solution.

2. If the affected plants are relatively slight, they can be eliminated by strengthening fertilizer and water management, and they can be appropriately supplemented with fast-acting nitrogen fertilizer, or sprayed with a large amount of water in time to promote the normal growth of the plants; If the leaves or plants are seriously damaged, timely irrigation, phosphorus and potassium fertilizers, and tillage should be used to promote root development and enhance recovery ability.

3. If the pesticide damage caused by herbicides is slight, it can be sprayed with Bihu or Brassinolide, and watered and irrigated at the same time to restore plant growth.

4. If the leaves are rapidly curled and dry, 100 times of white sugar water should be sprayed in time, which can generally quickly relieve the pesticide damage.

5. For other pesticide hazards, it is generally recommended to use Bihu, Brassinolide, or anti-disease, etc.

Answer: Cucumber should be treated in time after being damaged by herbicides, if the degree of pesticide damage is low at the beginning, you can quickly spray the leaves of the damaged crop with a large amount of water, and you can mix an appropriate amount of baking soda solution or lime water in the water. Rapid application of fast-acting fertilizers such as urea is then followed to increase nutrients and promote recovery. After that, it is appropriate to spray drugs that alleviate the damage, such as drugs containing brassinin, indoleacetic acid, sodium dinitrophenol, chlorpyramide and other ingredients.

The use of greenhouse cucumber preparations such as melon growth, sitting, and anti-falling pigment can easily lead to plant growth stagnation, thickening and brittle leaves, black and green leaf color, thick and short melon strips, and many deformed melons. However, the pesticides such as powdery rust, mancozeb, ethylphosphine aluminum, and sclerotinia are easy to cause pesticide damage on cucumbers.

1. Defensive measures: coordinate the environmental conditions such as temperature, light, water and gas of cucumbers in solar greenhouses, strengthen scientific management, and create the best growth and development conditions for the common development of vegetative growth and reproductive growth of cucumbers in greenhouses.

2. When using hormones, it should be tested before application, and the effective ingredients of hormone pesticides used should be clarified, so as to avoid poisoning caused by excessive concentration caused by mixing the same ingredients. In order to avoid the occurrence of pesticide damage, agrochemical, physical and ecological prevention and control should be the mainstay, the number of application of chemical pesticides should be minimized, the application concentration should be reduced, and the sensitive pesticides of cucumbers should be used cautiously.

You can use 920 mixed with water foliar spray, and then apply urea to the roots.

Spray with water several times and then spray with foliar fertilizer You can also add 80-100mg l gibberellin for 1-2 treatments, so that by the way, you can induce an increase in female flowers.

What are the manifestations of drug damage? Find out what causes the drug damage first.

Remedy.

1.If the growth is inhibited after the pesticide damage, gibberellin can be sprayed 30-50 millimeters; g kilograms, and then sprayed with 100 times of sugar.

2.If the leaves are rapidly twisted and drooping, spray with 100 times the liquid of white sugar water, one; Generally, it can quickly relieve the drug damage.

3.If the damage caused by herbicides is not very serious, it can be sprayed immediately; or 500 times of virus K, for plants that have severely inhibited growth, stock solution can be used; Apply the growth point.

4 5 pages. 4.For other pesticide hazards, anti-disease carb or virus K is generally used, natural brassin, ; Vegetable spirit + plant pleiotropin auxin; Foliar spray with zinc sulfate 600 700 times liquid, promote; The plant body produces erythroxin, so as to relieve and slow down the pesticide damage. ;Cucumber is a vegetable crop that is more sensitive to pesticides, and the dosage required is also higher; Strict.

In particular, the degree and amount of medicine at the seedling stage should be strictly controlled. Reduce the amount or make the droplets even.

It's a pity that there is no clear reverse side of the blade**... If it is not possible to diagnose all of them, it is recommended to take more recent photos of the negative front to avoid misdiagnosis and missed diagnosis.

Only look at the front of the leaf ** to determine that there is one, mainly cucumber downy mildew, the resistance is different in various places, it is recommended to enoylmorpholine, manganese zinc frost urea, downy mildew hydrochloride, methalen manganese zinc, oxaline manganese zinc, flumorpholine manganese zinc, cyanoscharazole, fluoroetheramide, oxazole ketone manganese zinc and other ingredients to choose one or two mixtures (in serious cases), alternately.

If it is a protected greenhouse, pay attention to controlling the humidity, and on rainy days, it is recommended to use chlorothalonil fogging agent to control the condition. ）

Prevention first, comprehensive prevention and control (prevention of diseases, dosage reduction). Use pesticide ingredients alternately, and do not use the same pesticide ingredients consecutively. This is the principle of crop protection.

Second, it is recommended to mix bacterial pesticides such as mesomycin or thiamethone or chunleimycin or Pseudomonas fluorescens or thiazolezinc and so on to prevent and control bacterial diseases.

Because the situation in the field is complex, we can't just look at the symptoms of a few leaves, and bacterial diseases cannot be ignored, and we must prevent them before they happen.