New silicone can delay the insect resistance-Iota

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News > Dynamic industry > New silicone can delay the insect resistance

New silicone can delay the insect resistance

Pesticides can be divided into organic phosphorus, pyrethroid, carbamate,chloronicotinyl and to chlorantraniliprole is representative of the amides, eachclass of insecticides have unique mechanism. However, insects have very strong adaptability, if the same mechanism alone long insecticide, pest happen soongenetic response to variation of resistance, i.e.. Therefore, need reasonable rotation of medication, to delay the insect on pharmaceutical drug resistance response. But the rotation of medication, not simply to put some kinds of medicament names of different alternate so simple to use.

First of all, to clear the so-called rotation, is refers to between the drugmechanism of action of different rotation. Mechanism of different kinds of agentsusing the same exchange, is still not up to the rotation of the purpose of use. For example, between cyhalothrin and other pyrethroid rotation, the same as between chloronicotinyl of imidacloprid and acetamiprid rotation and so on, are inappropriate, because pests have cross resistance to them.

Second, if the pest has for some kind of medicament resistant, preferably in therotation of medication also not alone this medicine, such as the diamondback moth resistance to pyrethroids is very strong, the best medicine mixing and otherdifferent mechanism to use, but should pay attention to, and not a different mechanism can mix, need to advance screening.

Third, regardless of the pests in place year several generations of the pest itselfwill occur regularly, such as every year or every generation of the damage peak time, peak spawning and larval hatching peak, activity habits etc.. Master theserules aim is to find the key time, can be more reasonable rotation of medicationto control. For example, when early spring of diamondback moth, egg laying and incubation time is neat, the first dose selection in egg hatching stage,chlorantraniliprole, diflubenzuron, efficacy of such agents play a slow, but long duration on young larva prevention effect is good; as the temperature rise.Plutella xylostella l.field overlapping generations increased, also have insect eggs and young larvae, such as older larvae in different growth stages are often the same piece of land, this time the drug to eliminate insect best in the largest number of mainly, and cure other insect larvae in the field; if the number of instars, the first dose with the best available new insecticide minimum resistance,suppress the population quantity, and then the common pesticides.

Fourth, pay attention to the quality of uniform spraying, spraying, the spraying toworm body. Do not arbitrarily increase the dosage of medicament to reducespray volume. The stem and leaf of crop pests or hydrophilic surface potential,adding silicone additives in liquid medicine can improve the efficacy of.

In short, pest control than several agents will be able to solve, especially the pestresistance strong damage, a comprehensive solution is the most scientific.