Urgent!! Who has a highly effective pesticide for the treatment of rice leaf roller?

"Kamon" is a special agent for the control of rice leaf roller borer and dimorphic borer so far.

The total active ingredient content of "Carmon" is: 37%.

Avermectin: 2%.

profenofos: 35%

"Kamon" is the exclusive first variety in China, which was the main variety promoted by the Hubei Provincial Department of Agriculture in 2011. Registered control objects: rice longitudinal leaf roller, two borer.

Unique properties: This product is made of biological sources and organophosphorus pesticides, which has the effect of contact killing and stomach toxicity, and can penetrate into the plant body and conduct to various hazard points. This product has a certain fumigation effect, good fast-acting, and has the characteristics of persistentness, and also has a certain eggicidal effect.

It has a good control effect on exposed, bored and concealed pests.

But because it is the highest content and is a product that has obtained national patents, ** is also very high, but the effect is absolutely good!

Control method: spray with 25% 223 emulsion 250 times, 90% trichlorfon 1000 1500 times. The control time should be mastered before the third instar of the larvae, and the best effect should be applied in the evening.

After the control, the effect should be checked, and if the population density is as before, it should be treated again. When spraying, adding an appropriate amount of new high-lipid film can make the drug more effective.

In terms of the activity of insecticidal ingredients, I recommend: emamectin salt indocarb, emamectin salt fenoxapyr. At temperatures above 28, the insecticidal activity of the same content of emamectin salt on rice leaf roller borer is dozens of times higher than that of avermectin, so try to choose emamectin salt to replace avermectin.

Indoxacarb has been used for outstanding results in recent years, and for leaf rollers, the effect of small insects is particularly good, and the elderly insects can also be killed.

Rice leaf curl borer, scientific nameRice leaf rollerIt is one of the three major pests that currently harm rice. Migratory pests are greatly affected by storms and strong convective weather, and adults can fly and migrate over long distances.

This year, there was more rain in the southern rice planting areas, and the occurrence of rice leaf roller borer was also relatively serious, and some areas were the heaviest in the past decade.

What medicine is good for the prevention and control of rice leaf roller borer.

Pesticides with different mechanisms of action are used together. And raise the stool, for example: gastric toxicity type + contact killing type, gastric toxicity type + fumigation type of compound use effect is better.

Agricultural material stores and farmers often use pesticides with good insecticidal effects when spraying, resulting in the rapid development of resistance to pesticides, and the effect of reuse is not ideal.

For example, avermectin, around 2010, 100 ml of avermectin can be used per mu to control leaf roller borer on rice, and the leaf roller borer is clean after 2 days of spraying.

After two or three years of continuous use, 100 ml of acitrin can no longer be beaten, and it needs to be replaced with 100 ml of avermectin；Now the effect of using 150 ml of 5% avermectin per mu is not ideal.

This is the resistance caused by the continuous use of a single gastric toxic componentIf you choose to mix and use gastric poison + contact pesticides, it will delay the emergence of pest resistance and prolong the life of the product.

In terms of the activity of insecticidal ingredients, I recommend: emamectin salt indocarb, emamectin salt fenoxapyr.

At temperatures above 28, the insecticidal activity of the same content of emamectin salt on rice leaf roller borer is dozens of times higher than that of avermectin, so try to choose emamectin salt to replace avermectin.

IndoxacarbIn recent years, the effect of use is outstanding, and for leaf rollers, the effect of small insects is particularly good, and the old insects can also be killed. This is also the reason why indene smiling chlorantoxamine is used more and more, and chlorantraniliprole is used less and less.

ChlorantraniliproleIt is okay to prevent leaf roller borer in the early stage, but once it occurs, it is very weak and has high resistance.

PyroxonilIt has strong permeability and systemic absorption in the leaves, and has strong contact killing ability, and it is also a popular insecticide in rice control in recent years.

<> rice leaf roller borer can be controlled with emamectin salt, insecticide, methamidophos, acemethamidophos, pine borer, avermectin, Bacillus thuringiensis, indoxacarb and amide insecticides. It can be sprayed after mixing emamectin benzoate, chlorantraniliprole, silicone, etc., which has a quick effect and a long duration of effect after spraying. It can also be treated with 50-75 grams of 30% acemethamidophos emulsion per mu and sprayed with 35-60 kg of water, and the effect is obvious.

1. What kind of medicine is used to prevent and control rice leaf roller borer?

1. Rice leaf roller borer can be controlled with emamectin salt, insecticidal bis, methamidophos, acemethamidophos, pine borer, avermectin, Bacillus thuringiensis, indoxacarb and amide insecticides.

2. 150 grams of 25% insecticidal double water agent per mu, sprayed with 35-50 kg of water, or mixed with kg of water to dispel fog. The appropriate period of medication is mastered at the peak period of the first and second instar larvae.

3. 25-50 grams of methamidophos emulsion per mu, sprayed with 35-50 kg of water. It is also very effective against old larvae, and can also treat black-tailed leafhoppers. The safe interval is 20 days for early rice and 40 days for late rice.

4. 60-75 grams of 50% pine borer emulsion per mu, sprayed with 35 kg of water, or mixed with kg of water to clear the fog. The safety interval between medications is not less than 14 days.

5. 50-75 grams of 30% acemethamidophos emulsion per mu, sprayed with 35-60 kg of water, or 5 kg of water to dispel fog.

6. It can be sprayed with emamectin benzoate, chlorantraniliprole and organic silicon after spraying, and the effect is fast and the effect is long.

Second, when is the control effect of rice leaf roller borer?

1. For rice leaf roller, the control effect is good from early to mid-July to mid-August. In early to mid-July, the rice leaf roller borer migrated for the first time, and the peak of adults appeared in late July, and severe leaf curling appeared in mid-August.

2. Leave a shallow water layer when applying, rice leaf roller borer is a leaf-eating pest, the more liquid medicine attached to the rice leaves, the better the control effect, especially the application of contact pesticides, spraying should be uniform and comprehensive. According to the habit of rice leaf roller, it should be applied before 10 o'clock in the morning and after 5 o'clock in the afternoon, and if it rains within 4 hours after application, it needs to be supplemented.

3. Biological control is to control the insect pest population in the field by stocking the natural enemies of rice leaf rollers such as red-eyed bees in nature, so as to achieve the purpose of prevention and control.

Agricultural control: Rational fertilization and strengthening field management to promote the growth of rice to reduce damage. Biological control:

Artificial release of red-eyed bees, in the beginning of the oviposition period to the peak period of rice leaf borer, the bees are released in phases and batches, 3-40,000 heads per mu each time, once every 3 days, and 3 times in a row. Chemical control: When the larvae are at the peak of 2-3 instars, spray 35-40g of 80% insecticidal single powder or 60ml of 42% trik emulsifiable concentrate per mu.

Rice leaf roller borer is best controlled with chlorantraniliprole.

Chlorantraniliprole: A common pesticide ingredient in rice-growing areas, it poisons the target through gastric toxicity and paralyzes the insect muscle nerves with continuous decalcification to inhibit the growth of pests. After eating a certain dose of chlorantraniliprole, the pest can stop feeding for tens of minutes and die in 2-3 days.

The ingredient is a microtoxic insecticide, which is safe for pesticide applicators, and is also very safe for beneficial insects and aquatic organisms such as fish and shrimp in rice fields, and can last for 15-20 days after application at a young age. It is also a relatively popular pesticide ingredient used in the market of shrimp paddy fields.

Rice leaf roller

An important pest on rice. The rice leaf roller borer must be a pest that can roll up the rice leaves lengthwise. It and rice bracts are both pests that can bud and harm leaves, the difference is that the insect bracts of rice bracts often adhere to several leaves, and the young larvae of rice leaf roller borer often eat mesophyll, leaving the epidermis and eventually forming a "scraping" leaf.

Rice leaf roller borer is widely distributed in all rice areas. In addition to harming rice, it can also feed on crops such as barley, wheat, sugarcane, millet and weeds such as barnyard grass, Lee's grass, paspalum, double-spike paspalum, horsetail, dogtail grass, cricket grass, thatch, reed and so on.