Seed Treatment Public Health Chemical Nitromethylene Systematic Insecticide Imidacloprid 70% WDG

Public Health Chemical Nitromethylene systematic insecticide imidacloprid 70% WDG, 350 g/L SC, 200 g/L SL

Prevention and control object

It is used to control puncture mouthparts such as aphids, leafhoppers, planthoppers, thrips, whitefly and their resistant strains. It is also effective for Coleoptera, Diptera and Lepidoptera. Imidacloprid has no effect on nematodes and spider mite. Because of its excellent internal suction, it is especially suitable for seed treatment and granule application.

Early and sustainable pest control can be carried out on cereal crops, maize, rice, potato, sugar beet and cotton, and foliar spraying can be used on these crops and other late growth pests such as citrus, deciduous fruit trees and vegetables. Leaf spraying has excellent control effect on leaf hopper, planthopper (brown planthopper, grey planthopper, white-backed planthopper), aphid (peach aphid, cotton aphid) and thrips (thrips in greenhouse hedgerow), and is superior to thiazide, ethermethrin, Carbendazim and fenitrothiazide.

Usage method

Soil treatment, seed treatment and leaf spray can be used.

(1) When the concentration of poisonous soil was 1.25mg/kg, it could control the peach aphid on Chinese cabbage and the peanut aphid on broad bean for a long time.

(2) The control of brown planthopper, white-backed planthopper, leafhopper and thrips with dosage of 20-30g/hm2 had a rapid effect and a long duration. The control effect of more than 90% could last for more than 40 days. It has good selectivity between the planthoppers and natural enemies. When used in seedbed or paddy soil treatment, it has ideal control effect on rice stripe blight, common dwarf stripe disease and yellow dwarf disease spread by black-tailed leafhopper.

(3) It has good control effect on many aphids, including peach aphids with high resistance to many insecticides. Water spraying (5000-20000 times) with 15-30g/hm2 active ingredients can effectively control peach aphid, wheat aphid, vegetable aphid and cotton aphid, and more than 90% of the control effect can reach more than one month.

(4) The control effect of wheat aphid increased gradually with the increase of the dosage. 75 g/hm2 of 25% WP was more stable and ideal after the occurrence of wheat aphid, and 150 g/hm2 of 25% WP per mu was suitable for the control of wheat aphid at flowering stage, so as to ensure a sufficiently long effective period.

(5) seed treatment with 1g ai/kg could control the aphid and Aphis gossypii in at least 5 weeks.

(6) Efficacy against resistant insects: imidacloprid is different from organophosphorus, carbamate and pyrethroid insecticides, and it also has a good effect on aphids, leafhoppers and planthoppers that have developed resistance to conventional insecticides. Resistant black-tailed leafhoppers, brown planthoppers and planthoppers were insensitive to organophosphorus and carbamate, and peach aphids were insensitive to organophosphorus, carbamate, pyrethroid and pyrethroid insecticides. Compared with susceptible strains, the sensitivity of resistant strains to imidacloprid did not decrease.