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Compound insecticide of beauveria bassiana and osthole

A technology of Beauveria bassiana and osthole, which is applied in the field of pesticides, can solve the problems of undiscovered Beauveria bassiana insecticides, etc., and achieve the goal of delaying the occurrence of insecticide resistance, significant synergistic effect, and good control effect Effect

Inactive Publication Date: 2017-06-20
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the compound insecticide of Beauveria bassiana and osthole at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Screening of the mixing ratio of Beauveria bassiana and osthole

[0022] The test object was Bemisia tabaci ( Bemisia tabaci ) second-instar nymphs, the test agents were Beauveria bassiana, osthole, and a mixed preparation of Beauveria bassiana and osthole. Beauveria bassiana is 20 billion spores / gram of pure sporopollen, and osthole is the original drug with a content of 98%.

[0023] The test method refers to the agricultural industry standard of the People's Republic of China "Pesticide Indoor Bioassay Test Guidelines" insecticide NY / T 1154.9-2008, and the test adopts the spray treatment method. A series of concentrations of Beauveria bassiana spore suspension, osthole, and a mixed preparation of Beauveria bassiana and osthole were sprayed on cucumber leaves with second-instar nymphs of Bemisia tabaci with a small sprayer, and the control was Sterile water, dry naturally. There were 3 leaves per treatment, 100 nymphs per leaf, and 3 repetitions. The p...

Embodiment 2

[0035] Example 2: 10% Beauveria bassiana osthole wettable powder and its control effect on whitefly on cucumber in greenhouse

[0036] Beauveria bassiana pure sporopollen (20 billion spores / g) 9%, osthole (98% technical grade) 1%, glucose (powder) 2%, sodium lignosulfonate 1%, starch 3%, Dispersant BD55 3%, washing powder 3%, diatomaceous earth supplemented to 100%, prepared 10% Beauveria bassiana osthole wettable powder. The mixed preparation is diluted 2000 times with water, and sprayed to control whitefly on cucumbers in greenhouses ( Bemisia tabaci ), when the temperature in the greenhouse is 26°C and the relative humidity is 85%, the cumulative mortality rate of pests in 7 days reaches 98.7%.

Embodiment 3

[0037] Example 3: 10% Beauveria bassiana osthole wettable powder and its control effect on yellow thrips on cucumber in greenhouse

[0038]Pure pollen of Beauveria bassiana (20 billion spores / g) 9%, osthole (98% technical grade) 1%, glucose (powder) 2%, sodium dodecylsulfonate 1%, starch 3 %, dispersant WLND100 3%, diatomaceous earth to make up to 100%, made 10% Beauveria bassiana osthole wettable powder. The mixed preparation is diluted 2000 times with water, and sprayed to prevent and control yellow thrips ( Thrips flavus ), when the temperature in the greenhouse is 26°C and the relative humidity is 85%, the cumulative mortality rate of pests in 7 days reaches 90.1%.

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PUM

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Abstract

The invention discloses a compound insecticide of beauveria bassiana and osthole and application of the compound insecticide. The compound insecticide is prepared from a main agent and an auxiliary agent; the compound insecticide is prepared from the components in percentage by mass: 10 percent to 60 percent of the main agent and 40 percent to 90 percent of the auxiliary agent; the main agent is a mixture of the beauveria bassiana and the osthole; the mass ratio of the beauveria bassiana to the osthole is 9 to 1. The compound insecticide provided by the invention can be processed into wettable powder; the compound insecticide has an efficient prevention and treatment effect on insects including whiteflies and thrips.

Description

technical field [0001] The invention belongs to the technical field of pesticides and relates to an environment-friendly compound insecticide of Beauveria bassiana and osthole. Background technique [0002] Beauveria bassiana ( Beauveria bassiana ) is an entomopathogenic fungus. As a living biopesticide, it has a new mechanism of action different from chemical insecticides and is environmentally friendly. It is of great economic significance to develop and utilize Beauveria bassiana as an alternative control drug. Beauveria bassiana is widely distributed geographically, and can be used to control pests such as grubs, houseflies, scale insects, whiteflies, aphids, thrips, leaf beetles, cockroaches, locusts, cotton bollworms, corn borers, longhorns, and scarabs. The well-known control applications are grubs, corn borers, pine caterpillars, tea leafhoppers, etc. in forests, nurseries, lawns, farmland, etc., and it has a good application prospect. Scientific studies have show...

Claims

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Application Information

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IPC IPC(8): A01N63/04A01N43/16A01N25/14A01P7/04
CPCA01N25/14A01N43/16A01N63/30A01N2300/00
Inventor 谢明张艳军邱卫亮彭德良
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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