Piercing-sucking pests such as aphids, whiteflies, thrips, and leafhoppers reproduce quickly and overlap generations seriously. They often harm the back of leaves. Foliar spraying is difficult to completely control. Often, a lot of manpower and material resources are invested, and the control effect is not ideal. Thiamethoxam is an excellent insecticide. It can not only be used to control piercing-sucking pests such as aphids, thrips, planthoppers, and whiteflies, but also to control weevils, twenty-eight-spotted ladybugs, grubs and other pests. It can be used not only for spraying, but also for soil treatment and other methods of use. The effect of pest control is better than spraying.
1. Understanding thiamethoxam
Thiamethoxam mainly acts on the central nervous system of pests, blocking the conduction of the nervous system, causing paralysis and death of pests. It not only has contact, stomach poison and systemic activity, but also has higher activity, better safety, wider insecticide spectrum, fast action speed and long lasting effect. It is widely used in a variety of crops to control piercing-sucking pests, diptera, lepidoptera, coleoptera and other pests. It is the first choice to replace highly organophosphorus and carbamate insecticides.
2. Main features
(1) High activity: The metabolite of thiamethoxam in crops is clothianidin, which is more toxic to pests than thiamethoxam, and its insecticidal activity is more than 8 times higher than that of imidacloprid.
(2) Good water solubility: The solubility of thiamethoxam in water is more than 8 times higher than that of imidacloprid. Therefore, even in arid environmental conditions, it can play a good insecticidal activity when used for soil treatment.
(3) Long lasting effect: Thiamethoxam has good stability in the soil and in the plant body, and its degradation rate is very slow. It can be absorbed by the crop roots for a long time and transmitted to various parts of the crop, continuously killing pests. The longest lasting effect can reach 120 days.
(4) Low resistance level: Since the promotion of thiamethoxam in the 1990s, pest resistance has developed slowly. At very low doses, it still has high activity against pests, and its effect in controlling a variety of piercing-sucking pests is still very outstanding.
(5) Stimulating growth: Thiamethoxam can activate plant stress resistance proteins, and at the same time affect a variety of substances such as auxin, cytokinin, gibberellin, abscisic acid, peroxidase, polyphenol oxidase, phenylalanine ammonia lyase in the plant body, promote crop growth, and improve crop stress resistance.
(6) Flexible use: Thiamethoxam has contact and stomach poison effects, good systemic absorption, and can be used not only for spraying, but also for seed dressing, soil treatment, root irrigation, root dipping and other methods of use. The effect of pest control is very outstanding.
3. Applicable crops
Thiamethoxam can be widely used in rice, wheat, corn, cotton, peanuts, soybeans, potatoes, cucumbers, watermelons, tomatoes, eggplants and other vegetables, apples, pears, cherries, peaches, citrus, kiwis, strawberries and other fruit trees, chrysanthemums, platycodons, peonies and other flowers and Chinese medicinal materials.
4. Control targets
It is mainly used to control piercing-sucking pests such as aphids, rice planthoppers, gray planthoppers, white-backed planthoppers, brown planthoppers, thrips, whiteflies, whiteflies, leafhoppers, etc., and can also be used for underground pests such as white grubs, cutworms, and two-spotted cutworms.
5. Usage
(1) Soil treatment: Before sowing crops such as wheat, peanuts, soybeans, potatoes, sweet potatoes, garlic, and ginger, combined with land preparation, 2% thiamethoxam granules 2-3 kg, mixed with 15-20 kg of organic fertilizer, evenly spread and then till the land, can effectively kill underground pests such as grubs, mole crickets, wireworms, and cutworms in the soil, and can also prevent the damage of ground pests such as aphids, thrips, whiteflies, and gray planthoppers. The effective period can reach more than 100 days.
(2) Application in holes or furrows: When planting seedlings of crops such as cucumber, watermelon, tomato, pepper, eggplant, and melon, 1-2 kg of 2% thiamethoxam granules can be mixed with 10-15 kg of decomposed organic fertilizer and then applied in holes or furrows. After mixing evenly with the soil, it can effectively prevent the damage of underground pests such as white grubs, wireworms, and cutworms. The effective period can reach more than 100 days. The use of the pesticide is more concentrated and the prevention and control effect is better.
(3) Seed dressing treatment: Before sowing crops such as wheat, corn, peanuts, soybeans, garlic, and potatoes, use 30% thiamethoxam suspension seed dressing agent at a drug-seed ratio of 1:400 to evenly coat the seed dressing agent on the planting surface. It can effectively prevent the damage of underground pests and various ground pests, and can also prevent the occurrence of viral diseases. The effective period can reach about 80 days.
(4) Root irrigation: During the seedling stage of watermelon, cucumber, tomato, eggplant, pepper and other vegetables, 2000 times diluted 30% thiamethoxam suspension seed coating agent can be used to irrigate the seedbed, or directly irrigate the roots and cover the soil when planting. It can also effectively prevent the damage of underground pests and various ground pests, and the effective period can reach more than 50 days.
The above methods can effectively prevent the damage of various underground pests such as white grubs, mole crickets, wireworms, cutworms, and two-spotted moths, and can also effectively prevent the damage of ground piercing-sucking pests such as aphids, gray leafhoppers, and thrips. The effective period is long and the effect is better. It can greatly reduce the number of spraying and reduce labor intensity.
