Penicillium fungus with nematocidal activity and its preparing method and use

Abstract

The present invention belongs to the field of biological pesticide technology, and is especially one fungus strain with nematocidal effect and its culturing method, metabolic product and application. The fungus strain is Penicillium pinophilum snf44-1 in the preservation number of CGMCC No. 1852. It is prepared through liquid fermentation culturing, and its metabolite has obvious poisoning effect on plant nematode, especially on Meloidogyne hapla. The present invention has excellent application and development foreground.

Description

Technical field:

[0001] The invention belongs to the technical field of microbial pesticides, and in particular relates to a fungus for poisoning and killing plant parasitic nematodes, a preparation method and application thereof. Background technique:

[0002] Plant parasitic nematodes occur and cause damage in many countries and regions in the world, and there are various types. On a global scale, the occurrence and harm of plant parasitic nematodes are becoming more and more serious along with the development of agriculture and forestry and the changes of farming and cultivation systems. According to Esser statistics, until 1990, 207 genus and 4832 species of plant parasitic nematodes have been reported to be found in the whole world (Liu Weizhi, Duan Yuxi. 2000. Plant Pathogenic Nematodes. Beijing: China Agricultural Press, p1-2). Plant-parasitic nematodes are estimated to cause an annual loss of 12.3% of the world's major crops, exceeding US$ 100 billion, while actual ...

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