What medicine is used for rice sheath blight, and when to apply medicine for rice sheath blight

High lipid film production enhancer (emulsion).

Farmer**" has reported: high-lipid film yield enhancer (emulsion) is very effective in preventing and controlling rice sheath blight.

Volume 19 of the Chinese Agricultural Science Bulletin also introduced that the effect of high-lipid film yield enhancer (emulsion) in the control of rice sheath blight is basically the same as that of several major chemical pesticides.

30% thiofir tebuconazole suspension 20 g mu; 24% Jinggang prochloraz powder 40 grams mu; 16% Jinggangmycin A powder 60 grams mu; 5% hexaconazole 80 ml mu. Choose any one of the above agents and spray 30-40 kg with water.

When the incidence of rice bush reaches 20%, it can be used as a pesticide control index, the application period is suitable before and after heading, and the high fertilizer field should be used before the closure, and then control 1 2 times every 10 15 days depending on the development of the disease.

When applying pesticides, we must ensure the dosage of pesticides, spray the liquid in the middle and lower parts of the plants, and apply pesticides when there is dew in the morning to improve the control effect.

Summary. When is the best time to control rice sheath blight, in the early stage of the disease and rice booting and flowering stage, it can be sprayed with 70% methyl tobuzine wettable powder 700 times, 75-100 kg of medicinal solution per mu; or 50ppm with 10% jinggangmycin and spray kilograms of liquid medicine per mu; With 50% carbendazim 500 times solution, it also has a good control effect.

When is the best time for the prevention and control of rice sheath blight, in the early stage of the disease from late June to early July, and the rice booting and flowering period, 70% methyl tob with Xiaochunjin wettable powder 700 times liquid spray, 75-100 kg of medicinal solution per mu; or 50ppm with 10% jinggangmycin and spray kilograms of liquid medicine per mu; With 50% carbendazim 500 times solution, it also has a good effect of prevention and treatment.

When is the best time for the prevention and control of rice sheath blight, in the early stage of the disease from late June to early July, and the rice booting and flowering period, 70% methyl tob with Xiaochunjin wettable powder 700 times liquid spray, 75-100 kg of medicinal solution per mu; or 50ppm with 10% jinggangmycin and spray kilograms of liquid medicine per mu; With 50% carbendazim 500 times solution, it also has a good effect of prevention and treatment.

Dear, these drugs can be sprayed down.

If there are no problems, can you give me a like? Thank you.

It works very well.

You use typing, otherwise I won't be able to hear clearly.

Is it good to use file alcohol to prevent tattoo disease?

This effect can also be used.

Pretty good. Is Tanaka spraying on July 2nd.

When is the best time to spray.

Spraying in early July will do.

Rice sheath blight. It is a disease of high temperature and high humidity.

It is mainly harmful to the leaf sheath, followed by the leaf. At the beginning of the disease, oval dark green water-stained lesions first appear on the leaf sheath near the water surface, and then gradually expand to moire, gray-white in the middle, and the lesions expand from bottom to top and gradually increase. It is recommended to spray 20 grams of 24 thiofuramide or 30 grams of 18 benzopropiconazole once every ten days, twice in a row.

Rice sheath blight is one of the important diseases of rice, generally early rice disease is heavier than single season late rice and late season rice, the light one affects the grain filling, the heavy one causes the plant wilting and lodging, can not head or wither, the yield is generally reduced by 10% 20%, and the yield can be reduced by more than 50% in severe cases.

Pattern of onset. The sclerotia floating on the surface of the water in the second year attach to the rice plant, and the hyphae at the right time at the temperature give birth to the hyphae, invade the leaf sheath, causing the disease, and then the diseased hyphae spread to the upper part of the rice plant or adjacent rice plants. The disease began to develop from the peak tillering stage of rice, accelerated the development of the disease at the jointing stage, flourished around the booting stage, and decreased the disease at the milk maturity stage. The disease likes high temperature and high humidity, high temperature in summer and autumn, and more rain, which is conducive to the occurrence of the disease; Excessive dense planting, excessive or late topdressing of nitrogen fertilizer, and continuous deep water irrigation cause poor aeration and light transmission, high humidity in the field, and accelerate the elongation and spread of mycelium, all of which are conducive to the disease. Varieties with short stems and multiple spikes are susceptible to disease because of their many tillers and dense leaves.

Prevention and control measures. The resistance of rice to sheath blight is the result of a series of complex physical and chemical reactions between rice and pathogenic bacteria, and the waxy layer and silicified cells of rice plants are a mechanical obstacle to resist and delay the invasion of pathogenic bacteria, an index to measure the disease resistance of varieties, and a rapid means to identify the disease resistance of varieties. There are few resources with high resistance to sheath blight, so more resistant varieties should be selected according to local conditions.

Salvage sclerotia and reduce the source of bacteria, and a large area should be salvaged every season and brought out of the field for deep burial. Strengthen cultivation management, apply sufficient basal fertilizer, top dressing early application, do not apply nitrogen fertilizer, increase phosphorus and potassium fertilizer, and adopt formula fertilization technology, so that rice does not cover leaves in the early stage, does not grow in the middle stage, and does not covet green in the later stage. Irrigation to tiller shallow water, enough seedlings to expose the field, dry the field to promote roots, fertile fields to re-dry, thin fields lightly sun, long spikes moist, not early water cut-off, to prevent premature aging, to master the principle of "shallow before, in the sun, after wet".

Grasp the appropriate period of prevention and control, and the rate of disease points in the late tillering stage reaches 15%, that is, pesticide prevention and control. The first choice is 300g l benzo*propiconazole emulsifiable concentrate 5000 times, or 5% jinggangmycin 100ml, spray 30 45kg of water or pour 400L of water. At the beginning and end of booting, 300gl of benzo*propiconazole emulsifiable concentrate 2000 3000 times was used for prevention and control, which not only had a good treatment effect, but also played a significant role in increasing yield.

Hope it helps!

Rice sheath blight can be used (Hexafile alcohol), Jinggangmycin compound formulation, such as (well. Wax Bacillus), (Phenyl ether methylcyclofile. C-ring file) sheath blight medication is recommended to be sprayed with dew in the morning, which can improve the efficacy of the drug, and the water is about 50kg.

One: dilute the rice blast Kang or rice blast Kang number by 500 times, spray the whole plant evenly, and use the medicine once every 7 days.

2: When the condition is severe, use 35ml of rice blast Kang + 35ml of rice blast Kang with 15 kg of water, evenly spray the whole plant, and use the medicine once every 7 days.

Precautions: Use enough medicine to measure the amount of water, and spray the liquid medicine to the middle and lower part of the rice plant; When using drugs, a shallow water layer must be established in the field for 3 5 days to ensure the prevention effect; Pay attention to safe medication in the high temperature season, and it is advisable to apply the medicine before 9 am or after 5 pm.

Full spike (thioframide), didiwin (oxime-tebuconazole), etc.

Rice sheath blight, rice sheath blight begins to occur at the tillering stage of rice, mainly affecting leaf sheaths and leaves. The onset of leaf sheath first appears in the water-stained dark green dot near the water surface, and gradually expands to form oval or cloud-shaped lesions, so it is also called moire disease, flower foot stalk, and leaf lesions are similar to leaf sheaths.

Pathogenesis: high temperature and humidity, excessive nitrogen fertilizer are necessary conditions for the occurrence of the disease.

It can be sprayed continuously with thiofuramide, propiconazole, hexaconazole, tebuconazole, fluconazole, difenoconazole-propiconazole, etc., plus potassium dihydrogen phosphate plus silicone spray, at an interval of 7 days.

At present, the effect of thioframide is relatively good, and the duration of effect is relatively long.

It is recommended to use 30% hexaconazole or fluconazole for the control of sheath blight.

It's good to love seedlings and take the enemy steadily.