Greentree Chemical Co., Limited is one of the leading manufacturers and suppliers of cas no. 138261-41-3 imidacloprid 70% wdg granules agricultural chemicals insecticide in China. With abundant experience, our factory offer high quality chemicals made in China with competitive price. Welcome to contact us for free sample.
This agent has multiple modes of action, including contact, stomach, and systemic activity. As a nitromethylene systemic insecticide, it is characterized by a broad spectrum, high efficacy, low toxicity, and low residue. When pests come into contact with this agent, the normal conduction capacity of their central nervous system is blocked, leading to paralysis and death. It has good quick-acting properties, generally achieving high efficacy within one day after application, with a residual period of up to approximately 25 days. It is often used to control pests with piercing-sucking mouthparts.
| Specification | 97%TC, 70%WDG; 70%WP; 25%WP; 10%WP |
| Chemical Name | 4-phenoxyphenyl(RS)-2-(2-pyridyloxy) propyl ether |
| Appearance | White to light yellow crystalline powder |
| Molecular Formula | C20H29NO3 |
| Molecular Weight | 255.661 |
| Melting Point | 136-144ºC |
| Solubility | In water at 20°C,0.51g/l. In dichloromethane 50-100, in 2-propanol 1-2, toluene 0.5-1, n-hexane<0.1(all ing/l at 20°C) |
| Stability | Store in a cool, dry, dark, and sealed environment for 2 years. |
| Toxicity | Low toxicity |
| Structural Formula | ![]() |
Application Methods
Control on Cruciferous Vegetables (Aphids, Leafhoppers, Whiteflies):
Mix 2-3 grams of 70% Imidacloprid WDG with 30-45 kg of water and spray evenly. Apply approximately once every 15 days for a total of two consecutive applications.
Control on Fruit Vegetables (Tomatoes, Eggplants, Cucumbers, Watermelons):
Mix 4-6 grams of 70% Imidacloprid WDG with 45-60 kg of water and spray evenly. Apply once every 15 days or so for a total of about two applications.
Control in Protected Cultivation (Whiteflies, Leafminers):
Mix 6-8 grams of 70% Imidacloprid WDG with 45-60 kg of water and spray evenly. Apply once every 10-15 days for a total of 2-3 applications.
Determining the Correct Dilution Rate for 70% Imidacloprid
Crop-Specific Dilution: The dilution rate depends on the crop type. For example, when used on apple trees, spray with a solution of 70% Imidacloprid WDG diluted 8,000-10,000 times.
Application Conditions and Crop Sensitivity: When using this product, in addition to mastering the correct dilution rate to avoid phytotoxicity, avoid applying it under low-temperature or strong sunlight conditions, as this can reduce efficacy. Special attention to dosage is required for sensitive crops to prevent damage. For example, on watermelons, potatoes, sweet potatoes, and green onions, do not exceed the recommended dosage and maintain some distance from the root system.
Toxicity to Non-Target Organisms: Although this product has low toxicity to mammals, it is toxic to bees, silkworms, and shrimp. Therefore, avoid using it in areas where bees are active or near silkworm rearing houses. Furthermore, do not allow the spray solution to contaminate nearby water sources to prevent harm to shrimp.
Incompatibility: Do not mix this product with alkaline pesticides or substances, such as Bordeaux mixture or lime sulfur. Mixing with alkaline materials will reduce the efficacy and may also cause phytotoxicity.
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