Compositional main pesticide containing destruxins of Metarhizium anisopliae and hexaflumuron

A technology of metarhizalin and hexaflumuron, which is applied in biocides, biocides, animal repellents, etc., can solve the problems of decreased control effect, achieve high larvicidal activity, significant insecticidal effect, and insecticidal broad spectrum effect

Inactive Publication Date: 2009-05-20
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the resistance of pests and solve the problem of significant decline in the control effect of most conventional pesticides

Method used

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  • Compositional main pesticide containing destruxins of Metarhizium anisopliae and hexaflumuron
  • Compositional main pesticide containing destruxins of Metarhizium anisopliae and hexaflumuron
  • Compositional main pesticide containing destruxins of Metarhizium anisopliae and hexaflumuron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1 Toxicity determination of main insecticidal agent of the present invention to cruciferous vegetable pests

[0017] The diamondback moth (Plutella xylostella) was used as the experimental object, and the leaf drug film method was used for indoor toxicity determination. Metarhizine and hexaflumuron were mixed in different proportions, with 6 concentration gradients for each treatment, and 3 repetitions for each concentration. The metarhizine is any one of metarhizin A, metarhizin B or metarhizin E or a mixture of two or more in any proportion.

[0018] Clean and non-pesticide-polluted pakchoi leaves were dipped in the medicinal solution for 5 seconds, then taken out and dried in the shade, put into a petri dish with a diameter of 9 cm and covered with filter paper, and then inserted into 15 third-instar larvae of diamondback moth. Placed in a breeding room for feeding. The feeding conditions are temperature 25-28° C., RH 70%-80%, and light as L:D=14h:10h. 72h...

Embodiment 2

[0022] Embodiment 2: Indoor toxicity determination of metarhizine, hexaflumuron single agent and main agent of the present invention to Spodoptera litura

[0023] When measuring indoor toxicity, take appropriate amount of metarhizine and hexaflumuron respectively, make a certain concentration of mother liquor with acetone and place it in the refrigerator (4°C) for standby. . Each treatment was replicated 3 times, and each replicate had 1 petri dish, and 15 third-instar Spodoptera litura larvae were placed in each petri dish. First, cut the leaves of cabbage into small pieces of 6-7 cm, soak them in the medicinal solution for about 5 seconds, take them out, dry them indoors, put the leaves into a petri dish connected with Spodoptera litura, and use wet cotton balls to moisturize. Change the cabbage leaves every 24 hours after the medicine and clean the petri dishes. The experiment was repeated twice. Observe and record the survival of Spodoptera litura 24, 48, and 72 hours a...

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Abstract

The invention discloses a pesticidal main agent by compounding hexaflumuron and destruxins of Metarrhizium anisopliae. The mass ratio of the destruxins of Metarrhizium anisopliae to the hexaflumuron is 9-3:1-7. The destruxins of Metarrhizium anisopliae is one of destruxins of Metarrhizium anisopliae A, destruxins of Metarrhizium anisopliae B or destruxins of Metarrhizium anisopliae E, or a mixture of more than two mixed in any ratio. The pesticidal main agent selects the destruxins of Metarrhizium anisopliae and the hexaflumuron for compounding, has obvious synergy, and has important significance of preventing and controlling brassicaceous vegetable-crop pest-insects such as diamond back moth, prodenia litura, asparagus caterpillar, cabbage diamond back moth, and cotton bollworm.

Description

technical field [0001] The invention belongs to the technical field of biopesticides and relates to an insecticidal main agent compounded with metarhizine and hexaflumuron. Background technique [0002] Hexaflumuron (hexaflumuron) is a new type of acylurea insecticide, which kills pests by interfering with chitin synthesis, and has low toxicity to mammals, birds and fish. Compared with other chitin inhibitors, it has a wider insecticidal spectrum, higher ovicidal activity and larvicidal activity, especially for Lepidoptera insects, mainly used to control cruciferous vegetable diamondback moth, nightworm Moth, beet armyworm, cabbage diamondback moth, cotton bollworm, etc., and has good effects on pests resistant to organophosphates, carbamates, and pyrethroids. There are many compound preparations of hexaflumuron, which are mainly compounded with phoxim, beta-cypermethrin, chlorpyrifos and other insecticides, and can also be compounded with Bt, dichlorvos, emamectin benzoate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/04A01N47/34A01P7/00
Inventor 任顺祥胡琼波
Owner SOUTH CHINA AGRI UNIV
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