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Compositional disinsection main agent containing destruxins of Metarhizium anisopliae and deltamethrin

A technology of Metarhizin and Deltamethrin, which is applied in the directions of biocides, biocides, animal repellants, etc. The technical report on the synergistic effect of Metatrusin has achieved the effect of solving the problem of drug resistance, stable insecticidal effect and strong promotion.

Inactive Publication Date: 2011-04-27
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no technical report on the synergistic effect of deltamethrin and metarhizine, and there is no compound insecticide of the two on the market

Method used

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  • Compositional disinsection main agent containing destruxins of Metarhizium anisopliae and deltamethrin
  • Compositional disinsection main agent containing destruxins of Metarhizium anisopliae and deltamethrin
  • Compositional disinsection main agent containing destruxins of Metarhizium anisopliae and deltamethrin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: Indoor Toxicity Determination Experiment of Metarhizin, Deltamethrin Single Agent and Metarhizin and Deltamethrin Compound to Whitefly Tabaci (Bemisia tabaci)

[0015] The metarhizine is any one of metarhizine A, B or E or a mixture of two or more in any proportion.

[0016] In the indoor toxicity test, Hibiscus rosa-sinensis L. was used as the test plant, and its potted seedlings were raised in insect cages, and adults of Bemisia tabaci were inserted into the insect cages. All were driven out, and the temperature of 26°C and the light of 14:10 were kept in the cage. When the Bemisia tabaci on the leaves of Hibiscus tabaci developed to the second instar nymphs, the toxicity test was carried out by dipping method, repeated 4 times, and the investigation was carried out 4 days after treatment. effect, calculate the corrected mortality rate, find the regression equation of the logarithm of the drug concentration - the probability value of the mortality rate, and...

Embodiment 2

[0021] Embodiment 2: Indoor toxicity determination of metarhizine, deltamethrin and their mixture to Spodoptera litura

[0022] The 3rd instar larvae of Spodoptera litura were used for testing, and the method for determining the toxicity was the same as in Example 1. The test results are shown in Table 2. When metabasicin and deltamethrin were mixed at a ratio of 5:5, 4:6, 3:7, 2:8 and 1:9, the co-toxicity coefficients reached 145.20 and 161.89 respectively. , 183.57, 174.59 and 178.31, with significant synergistic effects.

[0023] Table 2 Indoor toxicity determination of metarhizine, deltamethrin and their mixtures against Spodoptera litura

[0024]

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Abstract

The invention discloses a pesticidal main agent by compounding destruxins of Metarrhizium anisopliae and decamethrin. The main agent is a mixture of the destruxins of Metarrhizium anisopliae and the decamethrin; and the mass ratio of the destruxins of Metarrhizium anisopliae to the decamethrin is 1-9:9-1. The pesticidal main agent selects the the destruxins of Metarrhizium anisopliae and the decamethrin for compounding, and determines the optimal mixing ratio of both, so as to obtain obvious synergy and effectively solve the drugfastness problem of pests such as diamond back moth and prodenialitura. The pesticidal main agent has good desinsection effect and strong practical application and promotion, and has important significance of preventing and controlling the pests such as the diamond back moth and the prodenia litura; and the pesticide is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of biological pesticides, and in particular relates to an insecticidal main agent compounded with metarhizine and deltamethrin. Background technique [0002] Resistance of current pests to existing insecticides has developed significantly. Taking diamondback moth and Spodoptera litura as examples, diamondback moth (Plutella xylostella) belongs to Lepidoptera Plutellaidae and is the main pest of cruciferous vegetables worldwide. important pests of vegetables. Plutella xylostella is distributed in all provinces of my country and is the object of national agricultural pest resistance monitoring. Plutella xylostella has many generations, high reproduction coefficient, overlapping generations, and rapid population growth, which is extremely harmful to cruciferous vegetables. Spodoptera litura is an important omnivorous agricultural pest distributed worldwide. In recent years, the frequency of occurrence of lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/04A01N53/08A01P7/00
Inventor 任顺祥胡琼波
Owner SOUTH CHINA AGRI UNIV
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