A kind of rose fume-coloured I. rubella water-dispersible granule and preparation method thereof

Abstract

The invention discloses a water-dispersible granule of I. fumigatus, which is composed of powder of I. spores, sodium lignosulfonate (CMN) and sodium methylene dinaphthalene sulfonate. (NNO), isooctyl alcohol ethoxylate polyoxypropylene ether (CA‑60) and sodium α‑olefin sulfonate, corn starch, fumed silica and ammonium sulfate, polyvinylpyrrolidone K30 and pregelatinized starch, Composed of fumed silica and acid yellow 25 or direct frozen yellow 12, skim milk powder or chitosan oligosaccharide, water-absorbent resin SAP and diatomaceous earth. The present invention has the advantages of adopting low-cost and high stress-resistant fermentation, drying and spore meal preparation process; the best surface activity has been screened in biocompatibility, wettability, dispersibility, disintegration and cohesiveness agent; improved the infection and germination ability of the preparation in low humidity field. While reducing the production cost, the performance of the preparation is effectively improved, especially the shelf life is extended and the efficacy in the field is improved.

Description

technical field [0001] The invention belongs to the field of biofungal biopesticide preparations, and in particular relates to a water-dispersible granule with conidia of the entomophyte fungus Isyrrhizae spp. Mouthparts pests (such as whitefly, etc.). Background technique [0002] Compared with traditional chemical pesticide control, biological control is safe for humans, other organisms and the environment, and pests are not easy to develop resistance to pesticides, and have a long-lasting effect of controlling pests. Biological control includes the use of natural enemy insects, entomopathogenic microorganisms, and insect pheromones. Entomopathogenic fungi, as a class of entomopathogenic microorganisms, play a very important role in the biological control of pests, among which the application effect of fungal pesticide technology is the most significant. Fungal pesticides have the advantages of a wide range of hosts, significant efficacy, environmental safety, and no res...

AI Technical Summary

Problems solved by technology

[0005] Compared with other formulations or chemical pesticide water-dispersible granules, the main technical problems faced by fungal insecticidal water-dispersible granules can be summarized as follows: (1) the production cost of water-dispersible granules is higher than that of other formulations; (2) the formulation collapses in water Slow or insufficient disintegration, the dispersion and suspension performance can not meet the requirements; (3) The particle strength of the preparation is not suitable, too much strength is not conducive to disintegration, and the strength is too small and easy to break during storage and transportation; (4) The preparation generally lacks suitable growth-promoting agents Auxiliaries and microecological auxiliaries cause the infection ability of entomogenic fungi to be greatly affected by environmental humidity, which affects the performance of the drug; (5) entomogenic fungal spores are very sensitive to ultraviolet radiation, and the anti-ultraviolet ability of the preparation after application is insufficient. Affects the field persistence of pesticides

Images