Emamectin salt (emamectin benzoate), as a biological insecticide and acaricide, has been deeply loved by the majority of growers in recent years because of its ultra-efficient, low toxicity (preparation near non-toxic), low residue, pollution-free and other characteristics. As long as thrips and other pests occur on crops, the first thing everyone recommend is emamectin, which directly illustrates the "high status" of emamectin in pesticides "!

The use of a wide range of salt, applicable to vegetables, fruit trees, cotton and other crops on a variety of pest control.

Control objects, as follows:

Especially at this stage, it is the key time to use herbicides on corn, and carbamate can also be mixed with herbicides, thus saving trouble and effort.

Selection of dosage form

Emamectin salt is so hot, and there are many dosage forms of it, so how should we choose different dosage forms of Emamectin salt?

emamectin salt dosage form distinction table:

Selection of two contents

Regarding the content of emamectin salt, there are currently 1%, 1.5, 2%, 2.2, 3%, 5%, 5.7 and other contents registered in China. How do we usually choose so many contents?

Selection is based primarily on resistance:

If your local crops have not yet developed a certain resistance to carbamate, it is recommended that you choose low-content (less than 3%) carbamate, because the price is relatively cheap and the cost performance is relatively high.

If the diseases and insect pests of local crops have developed certain resistance to carbamate, it is recommended to choose high-content (more than 3%) carbamate, but the price is relatively expensive.

However, we need to pay special attention:

Don't just use emamectin salt alone, because some worms have developed resistance to emamectin salt. Sometimes it may not be effective if it is used. It is recommended that you mix it with other drugs!

three with emamectin salt mixing or compounding of pharmaceutical what?

(1) mite mite, mite mite double kill

Pests are mainly killed by gastric toxicity and contact killing. Mixing or compounding can not only reduce the amount of chemicals used, but also delay the production of pest resistance.

After mixing or compounding, the effect on Plutella xylostella, Pieris rapae, Spodoptera exigua, Spodoptera litura, Borer, Liriomyza sativae, fruit fly, psyllid, whitefly, thrips and other vegetable pests is more prominent.

(2) Indoxacarb emevicarb, with good quick effect and long duration of effect

They fully combine the insecticidal advantages of emamectin salt and indoxacarb, the quick effect is relatively better, the holding period becomes relatively long, and has strong permeability and good resistance to rain erosion.

The mode of action is mainly through the pesticide contact or feeding by pests, thus entering the body of pests, pests will immediately stop biting crops. Under normal circumstances, 4-6 hours dead insects, 18 hours to reach the peak of dead insects.

After mixing or compounding, the effect on Lepidoptera pests such as rice leaf roller, beet armyworm, Spodoptera litura, cabbage, diamondback moth, cotton bollworm, corn borer, leaf roller moth, and heartworm will be relatively better and faster.

Special reminder that emamectin salt will be absorbed by plant bud tissue. When the buds open, the absorbed emamectin salt will play a two-time insecticidal peak at this time, allowing those pests that harm crop buds to be killed.

(3) mite mite, expand the species of pests, delay the resistance of pests

Not only complemented the control range of the two single agents, but also the different insecticidal mechanism delayed the pest resistance.

This formula can quickly control pests, and the duration is relatively long. It has the dual effects of killing insects and eggs. Special attention should be paid to the fact that we can simultaneously control eggs during the peak incubation period of pests-the high incidence period of young larvae, which can effectively reduce the base number of insects, thus bringing about a relatively long duration.

After mixing or compounding, the effect on beet armyworm, cabbage green insect, Spodoptera litura, rice leaf roller and other pests is relatively good, and the effective period can reach more than 20 days.

(4) emamylin hexaflumuron, insecticidal and egg-killing, rapid, thorough and lasting.

Not only many kinds of insecticides, and kill eggs and insecticides, with rapid, clean, thorough, lasting and other excellent characteristics.

After mixing or compounding, this formula has a super killing ability to the stubborn and highly resistant pests that have been produced. Such as cabbage worm, rice leaf roller, Spodoptera litura, beet armyworm, cotton bollworm and other pests.

(5) the salt methofenozide, accelerate the death of pests

After compounding or mixing, the agent can stop feeding the larvae of pests, accelerate molting, mature and die in advance, and has excellent characteristics such as high efficiency, broad spectrum, safety and long duration of insecticidal and egg killing.

After mixing or compounding, it has a good effect on the larvae of lepidopteran pests, such as Chilo suppressalis, Spodoptera litura, Spodoptera exigua and so on.

(6) emamectin salt dimethuron, killing larvae quickly and inhibiting egg hatching

After compounding or mixing, the agent can inhibit the hatching of pest eggs and kill the larvae quickly.

In this formula, through the mixed use of emamectin salt and dimethuron, there are two kinds of effects of quick killing and long-term effect in the liquid medicine, so the control effect is relatively ideal.

After mixing or compounding, it has a good control effect on pests such as heartworms and corn borers.

(7) High-efficiency cypermethrin, high insecticidal activity

After compounding or mixing, the agent has the characteristics of high efficiency, low residue, low toxicity (the preparation is nearly non-toxic), pollution-free and other biological pesticides, and can be widely used for pest control on vegetables, fruit trees, cotton and other crops.

In this formula, the insecticidal activity is very high, and it has stomach toxicity and contact killing effect on pests at the same time, and the low dose has high insecticidal effect.

After mixing or compounding, it has good control effect on Chilo suppressalis, Chilo suppressalis, Chilo suppressalis, diamond worm, vegetable diamondback moth, beet armyworm, tobacco green insect, aphids on citrus, etc.

(8) Chlorpyrifos, insecticidal and acaricidal, delaying pest resistance

After compounding or mixing, the medicament has strong permeability, has preventive effect on pests and harmful mites of all ages, and also has the effect of killing eggs. If we take medicine to prevent it in the early stage, the effective period will be relatively long.

After mixing or compounding, it has a good control effect on pests such as Spodoptera frugiperda, Red Spider, Tea Little Green Leaf Cicada, Spodoptera, and Plutella xylostella.

Special reminder, if you can't control pests after mixing, it is recommended that you add some additives, such as essential oils or silicone, but you must use regular additives.

(9) emamectin salt cimezuron can inhibit egg hatching and kill many kinds of insects.

After compounding or mixing, the agent can inhibit the hatching of pest eggs, destroy the characteristics of larval molting, and increase the species of pests.

After mixing or compounding, the effect is better for many pests such as Lepidoptera, Coleoptera, such as leaf roller moth, leaf miner, corn borer, rice leaf roller, rapeseed, stinkbug, etc.

(10) metamectin salt, bufenozide, insecticidal activity can be greatly improved

After compounding or mixing, the gastric toxicity of the agent is relatively enhanced, it is not easy to produce resistance, and the duration becomes longer, which is also relatively safe for crops.

The mixed or compounded agents have a good control effect on the eggs and larvae of noctuid moths in cruciferous vegetables.

Of course, there are many, many mixed or compounded agents of emamectin, such as emamectin, hexaflumuron, methamyl, insecticidal monoisocarbophos, etc.

Four matters needing attention on the salt

1. Mixed matters

Although there are many agents mixed with carbamectin salt, I hope everyone must remember that carbamectin salt must not be mixed with various fungicides such as chlorothalonil, mancozeb and mancozeb, because carbamectin salt is a biological agent and will affect the efficacy of carbamectin salt.

However, when emamectin salt is used, the addition of pyrethroid pesticides can improve the quick effectiveness of insecticides. When used at intervals between crop growth periods, the effect will be relatively good.

2. Dosing matters

After the emamectin salt is sprayed on the leaves, it will quickly decompose under the action of strong light and ultraviolet rays. At the same time, the insecticidal activity of emamectin salt is not too strong when the temperature is lower than 22 degrees (because the insecticidal activity of emamectin salt increases with the increase of temperature, reaching 25 degrees, its insecticidal activity can even increase by 1000 times.)

Therefore, when emamectin is used in summer and autumn, it is suggested that farmers choose to take medicine before 7: 00 a.m. and after 5: 00 p.m., which can prevent the decrease of efficacy of emamectin due to strong light decomposition, and at the same time, there is a certain guarantee on temperature.

In particular, it is not recommended to use beamectin salt at the flowering stage of crops because it is toxic to bees. In short, emamectin salt is about to reach the peak period of use. We must be very clear about the mixing of emamectin salt and the objects to be controlled. Only in this way can we quickly prevent insects!

Sources, daily agricultural materials and networks