Chinese angelica treating agent as well as preparation method and application thereof

Abstract

The invention discloses a Chinese angelica treating agent which consists of 70% of imidacloprid seed treatment dispersible powder, 15% of an abamectin-chlorpyrifos emulsion and water. The invention further provides a preparation method of the Chinese angelica treating agent as well as an application of the Chinese angelica treating agent in control of Chinese angelica ditylenchus destructor. The Chinese angelica treating agent, the preparation method and the application have the benefits as follows: the Chinese angelica treating agent is harmfulless, the residual quantity in Chinese angelica is very small, and pesticide residue detection meets European Union EN 15662 standard; according to the use method of the Chinese angelica treating agent, before a Chinese angelica seedling is transplanted, the Chinese angelica seedling is immersed to reduce the use amount of the agent, so that the cost is saved, and the operation is simple and convenient; and compared with conventional granule broadcasting, the seedling immersion has small pollution on soil and water, the lasting period of the agent is long, the yield increase is remarkable, and the prevention effect is superior to the prior art.

Description

technical field

[0001] The invention relates to the field of plant disease and insect pest control, in particular to an angelica treating agent and a preparation method and application thereof. Background technique

[0002] Angelica is one of the most influential authentic Chinese medicinal materials in Gansu Province, with an annual planting area of ​​more than 250,000 mu, accounting for more than 90% of the country's total planting area, and is the main source of income for farmers in production areas. Mouth disease caused by potato rot nematode (Ditylenchus destructor) is a very important disease in the production of angelica. The field incidence rate is 100%, the average diseased plant rate is 82.50%, and the disease index is 53.68. Since the late 1980s, in-depth research has been carried out on the etiology, regularity of occurrence, and chemical control of angelica measles, and a main control agent based on isofenphos-methyl has been proposed, which has basically solve...