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Compound insecticide of lecanicillium lecanii and stemonine

The technology of leech scale fungus and baicale is applied in the field of pesticides to achieve the effects of delaying the generation of pest resistance, good control effect and significant synergistic effect.

Inactive Publication Date: 2017-08-25
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 are no relevant reports on insecticides compounded with lecanococcus and crotonine at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Screening of the mixing ratio of Lecanococcus and crotonine

[0021] The test object was Bemisia tabaci ( Bemisia tabaci ) second-instar nymphs, and the test agents were Lecanococcus spp., Chrysophylline, and a mixed preparation of Lecanococcus spp. Lexococcus is a pure sporopollen of 10 billion spores / gram, and crotonine is a powder with a content of 30%.

[0022] 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. Spray the suspension of spores of Lecanococcus spp., Lecanococcus spp., Lecanococcus spp. and the mixed preparations of Lecanococcus lactis with a small sprayer on the cucumber leaves with the second-instar nymphs of Bemisia tabaci. The control is sterile water. Let dry naturally. There were 3 leaves per treatment, 100 nymphs per leaf, and 3 repetitions. The plants were placed in ...

Embodiment 2

[0033] Example 2: 11% Lecanococcus chlorophyll wettable powder and its control effect on Bemisia tabaci on cucumber in greenhouse

[0034] Pure sporopollen (10 billion spores / g) 10% of Lecanococcus cerevisiae (10 billion spores / g), 1% crocetin (30% powder), 3% starch, 3% dispersant alkyl sulfonate, 3% sodium lignosulfonate, kaolin Replenish to 100%, and make 11% crotonine wettable powder. The mixed preparation was diluted 3000 times with water, and sprayed to prevent Bemisia tabaci on cucumbers in greenhouses ( Bemisia tabaci ), when the temperature in the greenhouse is 24°C and the relative humidity is 85%, the cumulative control effect in 7 days can reach 91.2%.

Embodiment 3

[0035] Example 3: 11% Lecanococcus chinensis wettable powder and its control effect on cotton aphid on cucumber in greenhouse

[0036] Pure sporopollen (10 billion spores / g) 10% of Lecanococcus spp., 1% crotonine (30% powder), 3% starch, 3% dispersant alkyl sulfonate, 3% sodium lignosulfonate, white Carbon black was supplemented to 100%, and 11% crotonine wettable powder was prepared. The mixed preparation was diluted 3000 times with water, and sprayed to prevent cotton aphids on cucumbers in the greenhouse ( Aphis gossypii ), when the temperature in the greenhouse is 24°C and the relative humidity is 85%, the cumulative control effect in 7 days can reach 95.4%.

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PUM

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Abstract

The invention discloses a compound insecticide of lecanicillium lecanii and stemonine and application of the compound insecticide. The compound insecticide is prepared from the following components in percentage by mass: 10-30% of a main agent and a 70-90% of an auxiliary agent, wherein the main agent is a mixture of the lecanicillium lecanii and stemonine; and a mass ratio of the lecanicillium lecanii to the stemonine is 10:1. The compound insecticide disclosed by the invention can be processed into wettable powder and has excellent effects of efficiently controlling injurious insects such as aleyrodid and aphid.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to an environment-friendly compound insecticide of lecanococcus and crotonine. Background technique [0002] Laxococcus (formerly known as: Verticillium laxacilis, Latin scientific name Lecanicillium lecanii ) is an entomopathogenic fungus. As a living biological pesticide, it has a new mechanism of action different from chemical insecticides and is environmentally friendly. It can be used as an alternative to control some pests that are resistant to chemical insecticides. It is of great economic significance to develop and utilize Lactococcus fungi as control drugs. Lecanococcus is widely distributed geographically and can be used to control scale insects, whiteflies, aphids and other important pests, among which the most famous one is the control of whiteflies and aphids in greenhouses, which has good application effect. Scientific research has shown that there are large differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01N43/90A01N25/14A01P7/04
CPCA01N25/14A01N43/90A01N63/30A01N2300/00
Inventor 谢明张艳军彭德良邱卫亮
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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