Thiamethoxam is a second-generation nicotinoid insecticide with a new structure and high efficiency and low toxicity. It not only has the advantages of contact killing, stomach poisoning and good systemicity, but also has the advantages of high activity, good safety, broad-spectrum insecticide, fast insecticide speed and long lasting effect.
Main features
(1) Thiamethoxam has good stomach poisoning and contact killing effects, strong systemic transmission effect and certain permeability. It has a wider insecticide spectrum, high insecticide activity and secondary insecticide activity, so the soil lasting effect can reach more than 90 days.
(2) It has high solubility. It is not only highly soluble in water, but also has a higher insecticide effect in the high temperature and drought environment in summer.
(3) Because thiamethoxam can activate plant stress resistance proteins, it affects auxin, cytokinin, gibberellin, abscisic acid, peroxidase, polyphenol oxidase and phenylalanine ammonia lyase in plants, which can make crop stems strong, root systems well developed and enhance stress resistance.
(4) Thiamethoxam does not produce cross-resistance with other nicotinoids such as imidacloprid, acetamiprid, and nitenpyram, especially in areas resistant to imidacloprid, where the control effect is more prominent.
(5) Thiamethoxam has good compatibility with a variety of insecticides and fungicides such as azoxystrobin, metalaxyl-M, fludioxonil, and difenoconazole, and has more prominent insecticidal and disease-curing effects.
Targets of control
Thiamethoxam has high activity against aphids, whiteflies, and other homoptera pests, and can effectively control aphids, thrips, whiteflies, whiteflies, leafhoppers, grubs, wireworms, potato beetles, nematodes, leaf miners, rice planthoppers, green stink bugs, rice stink bugs, long stink bugs, American pasture stink bugs, mealybugs, apple flower weevils, rice weevils, yellow-striped flea beetles, ground beetles, sunflower leaf beetles, codling moths, leaf miners, leafminers, and nematodes. In addition, thiamethoxam can also be used in the field of animals and public health to control flies, etc.
Application method
There are many ways to use thiamethoxam, which can be used for spraying, seed dressing, soil treatment, root irrigation and other application methods.
The universal insecticide effect of thiamethoxam in theory is not very ideal in practical application. Two problems cannot be ignored.
One is the resistance problem; the effect of using thiamethoxam alone in resistant areas is still good, but the effect of controlling thrips, aphids, planthoppers, etc. in many vegetable growing areas in the south is still relatively poor.
The second is the problem of dosage; if thiamethoxam wants to control insects, it must be applied in increased amounts at present. In practical applications, many growers apply it according to the dosage indicated in the product instructions, which basically either fails to cure or is not completely cured, or even the more pests are treated, the more they are.
The recommended dosage on the pesticide registration certificate is a theoretical result made in a resistant environment. Compared with the current resistance of pests, it has no practical guiding significance (for example, the relevant registration of 25% thiamethoxam, the dosage of 2 to 4 grams for rice planthoppers, but in actual production applications, it cannot be cured at all). If you want to use thiamethoxam efficiently, you should mix it with other types of pesticides.
Five golden partners of thiamethoxam, the insecticidal effect is doubled when used correctly
1. Thiamethoxam + Abamectin
After thiamethoxam and abamectin are combined, they are mainly used to control pests with piercing and sucking mouthparts such as thrips and aphids, pear psyllids, tea greens, leafhoppers, etc., and the effect is very good.
2. Thiamethoxam + pymetrozine
After thiamethoxam and pymetrozine are mixed, they are mainly used to control aphids, rice planthoppers, etc. in field crops, and the effect is very good.
3. Thiamethoxam + fludioxonil
After thiamethoxam and fludioxonil are mixed, it is a very excellent seed treatment suspension, mainly used to prevent thrips and aphids, seedling blight and other pests and diseases.
4. Thiamethoxam + spirotetramat
After thiamethoxam and spirotetramat are mixed, it is mainly used to control resistant aphids, pear psyllids, scale insects, etc. on fruit trees such as pear trees and persimmon trees, and it also has a certain inhibitory effect on mites.
5. Thiamethoxam + flonicamid
After thiamethoxam and flonicamid are mixed, the formula has stomach poison and contact killing effects, mainly used to control resistant aphids, thrips, planthoppers and other pests. After the drug is used, it can quickly control the damage of aphids, whiteflies, whiteflies, thrips and other pests, with a long lasting effect and good rain resistance.
Precautions for the use of thiamethoxam
① It is recommended not to use thiamethoxam alone. The rapid effect of single application is slow, so it is recommended to use it in combination, and at least add high-efficiency chlorpyrifos to increase its rapid effect.
② The spraying method of thiamethoxam to control underground pests such as white grubs is less effective. Two application methods are recommended: one is seed mixing and the other is flushing. When flushing, it should be combined with pyrethroid insecticides.
③ When using thiamethoxam, it is not necessary to mix it with imidacloprid, clothianidin, etc. Because they are all chronic nicotinoid insecticides and belong to the same class of agents.
④ When thiamethoxam is used to control ground maggots, it must be used in increased amounts to ensure its effect, especially for black-headed maggots. Taking 25% thiamethoxam as an example, the amount should not be less than 500 grams/mu.
