Diafenthiuron is a new type of high-efficiency thiourea insecticide and acaricide, which has the effects of contact killing, stomach poisoning, systemic absorption and fumigation, and has a certain oviogenous effect. Low toxicity, but high toxicity to fish and bees.

Product name: Diafenthiuron 

CAS NO.: 80060-09-9

Molecular formula: C23H32N2OS

Molecular weight: 384.58

Diafenthiuron is a new type of high-efficiency thiourea insecticide and acaricide, which has the effects of contact killing, stomach poisoning, systemic absorption and fumigation, and has a certain oviogenous effect. Low toxicity, but high toxicity to fish and bees. Under ultraviolet light, it is transformed into a substance with insecticidal activity, which has strong activity against pests that have developed severe drug resistance on vegetables. It can control aphids, whiteflies, leafhoppers, Noctuidae pests and harmful mites on a variety of crops and ornamental plants. It is mainly used as a spray with a wettable powder as a liquid medicine to prevent and control diamondback moth, cabbage caterpillar and cotton spider mites. Generally, 20-30 grams of active ingredients per mu are used, and the validity period is 10-15 days. (The use of leafy vegetables exceeding the standard measurement will cause irregular wrinkles on the leaves, and burns in severe cases)

Conditions of Use

The quick effect of killing mites is good; but in order to completely release the toxins of the agent, you must choose direct sunlight to spray (such as sunny spray, not cloudy, early morning, evening spray, etc.) to achieve the best effect. The thiourea group on the molecular structure cuts the covalent bond of the sulfur atom under the action of sunlight and multifunctional oxidase to turn it into a carbodiimide with powerful insecticidal and acaricidal effects. Therefore, it is suitable for use on sunny days.

Suitable

It is effective against adult mites, juvenile mites, nymphs and eggs. It can be used to control mites on fruit trees (citrus, apple), cotton, vegetables, tea, and ornamental plants (tetranychus, rust mites), aphids, whiteflies, leafhoppers , All kinds of moth pests have high control effect, and have produced resistant Plutella xylostella, Pieris rapae and leaf roller moths, etc.;

When severe mite damage occurs, especially adult mites, juvenile mites, nymphs and mite eggs are present at the same time, the necessary dosage must be ensured. 25% diafenthiuron shall not be sprayed more than 4000 times, and spray until the tip of the leaf drips.

The method of killing mites is novel, unlike other miticides, it is guaranteed to be used twice in a row, once every 15 days, which can guarantee a long time without mites.