Chlorfenapyr with CAS number 122453-73-0 is a high - quality chemical product offered at the best price. It is a pyrrole - based insecticide and acaricide. The chemical formula of chlorfenapyr is C₁₅H₁₁BrClF₃N₂O, and its molecular weight is approximately 407.62 g/mol.
It has a white to light - yellow crystalline appearance. Chlorfenapyr has a melting point range of around 100 - 101°C. It is slightly soluble in water but highly soluble in organic solvents such as acetone, dichloromethane, and toluene. This chemical is stable under normal storage conditions, but it should be kept away from strong oxidizing agents and high - energy radiation sources.
Chlorfenapyr is widely used in the field of agriculture. It acts as a powerful insecticide against a broad spectrum of pests. It is effective against various lepidopteran pests such as armyworms, cutworms, and cabbage loopers. These pests can cause severe damage to crops like corn, cotton, and vegetables. By eliminating these pests, chlorfenapyr helps to increase crop yields and improve the quality of agricultural products.
It is also used as an acaricide, which means it can control mite populations. Mites can infest plants, causing leaf discoloration, deformation, and reduced photosynthesis. In horticulture, chlorfenapyr is used on ornamental plants to maintain their aesthetic value by keeping them free from mite and insect attacks.
When using chlorfenapyr, it is crucial to follow the recommended application rates. For foliar application, the typical dosage ranges from 100 - 200 grams per hectare, depending on the target pest and the crop type. The product should be diluted in water according to the instructions provided. Use a suitable spraying equipment to ensure uniform coverage of the plant surface.
It is advisable to apply chlorfenapyr during the early morning or late afternoon to avoid rapid evaporation and to allow better absorption by the pests. Before large - scale application, it is recommended to conduct a small - scale test on a limited area to check for any phytotoxicity. Protective clothing, gloves, and masks should be worn during the handling and application of chlorfenapyr to prevent direct contact with the skin and inhalation of the chemical.
Case 1: In a cotton farm in Texas, USA, there was a severe infestation of cotton bollworms. The farmer applied chlorfenapyr at a rate of 150 grams per hectare. Within a week of application, there was a significant reduction in the bollworm population. The cotton plants showed less damage, and the yield increased by approximately 20% compared to the previous year when no effective pest control measures were taken.
Case 2: A greenhouse in the Netherlands growing roses was facing a major problem with spider mites. After applying chlorfenapyr as an acaricide at a diluted concentration, the mite population was effectively controlled. The rose plants regained their healthy appearance, with greener leaves and more vibrant flowers. The grower reported a 30% increase in the number of marketable roses after using chlorfenapyr.
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