59 results about "Hyphantria" patented technology

The present invention discloses a plurality of indolocarbazole alkaloids having strong insect disinfestation activities, and a production strain of the indolocarbazole alkaloids. The indolocarbazole alkaloid compound production strain CQT14-24 is a marine Streptomyces nitrosporeus CQT14-24 strain, wherein the strain is subjected to artificial culture, and the obtained fermentation product is extracted by the conventional chemical method so as to obtain four indolocarbazole alkaloids and an anthraquinone compound. According to the present invention, the indolocarbazole alkaloids and the one anthraquinone compound provide strong killing effects on a variety of cultivated plant pests, particularly the pests having characteristics of spreading in agriculture and forestry production and serious harm and comprising Pieris rapae, Brevicoryne brassicae, Hyphantria cunea, Plutella xyllostella, Mythimna separate and Helicoverpa armigera, wherein the relative mortality rate achieves 81.9-100%, the polypide is seriously reduced, the growth inhibition rate is 100%, and the imago pupation rate is reduced by 70.4-86.7%; and the strain is subjected to acclimation through the artificial culture, and has characteristics of stable feature, easy culture, simple and feasible operation method, no environmental pollution, short period, cheap raw materials, low production cost, good development prospect, and easy industrialization achieving.