A kind of insecticide composition and application thereof for ophthalmidae pests

An insecticidal composition, the technology of the fungus gnat, applied in the field of pesticides, can solve problems that have not been seen yet, and achieve the effect of reducing the damage rate of leeks, easy degradation, and long-lasting insecticidal effect

Active Publication Date: 2021-04-09
TAIAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no relevant report on the compound use of pyriproxyfen and Beauveria bassiana for the prevention and control of different-shaped fungus mosquitoes and chive tardyophthora in the storage period.

Method used

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  • A kind of insecticide composition and application thereof for ophthalmidae pests
  • A kind of insecticide composition and application thereof for ophthalmidae pests
  • A kind of insecticide composition and application thereof for ophthalmidae pests

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The control effect of pyriproxyfen and Beauveria bassiana on pests was studied by indoor toxicity test.

[0036] The test agents: pyriproxyfen original drug, Beauveria bassiana original drug.

[0037] Dissolve pyriproxyfen and Beauveria bassiana in acetone, respectively, and prepare 10,000 mg / L mother liquors, add emulsifier Tween-80 at a volume fraction of 0.2%, and store in a refrigerator at 4°C for later use.

[0038] Pests used for the test: Heterophagia heteromorpha, Chive tardigrade.

[0039] test methods:

[0040] (1) Indoor toxicity assay method

[0041] Toxicity determination of test insects The toxicity of pyriproxyfen, Beauveria bassiana and their mixed preparations was determined by using the stomach poison contact combined toxicity method with the different types of fungus and tardigrade as the test materials.

[0042] Single-dose toxicity assay method:

[0043]First, prepare pyriproxyfen and Beauveria bassiana for testing into 7 concentration gradients...

Embodiment 2

[0063] 31% pyriproxyfen Beauveria bassiana wettable powder

[0064] Components are composed as follows (each component is by weight percentage):

[0065] Pyriproxyfen 1%, Beauveria bassiana (50 billion spores / gram) 30%, sodium alkylnaphthalene sulfonate formaldehyde condensate (dispersant) 2%, sodium lignosulfonate (dispersant) 3%, ten Dialkyl sodium sulfate (wetting agent) 3%, white carbon black (filler) 20%, kaolin (filler) to make up to 100%.

[0066] The preparation method is as follows: the above-mentioned active components, various auxiliary agents and fillers are fully mixed in proportion, and the mixture is pulverized by a superfine pulverizer to obtain a 31% pyriproxyfen·beauveria bassiana wettable powder.

[0067] The insecticide composition is used in the prevention and treatment of heteromorphic fungus mosquitoes. Before the ginger is put into the cellar, according to the dosage of each agent, 100 kilograms of diluted medicinal sand is required for each ton of gin...

Embodiment 3

[0072] 21% Pyriproxyfen · Beauveria bassiana granules

[0073] Components are composed as follows (each component is by weight percentage):

[0074] Pyriproxyfen 1%, Beauveria bassiana (50 billion spores / gram) 20%, Pull-off powder (wetting and dispersing agent) 3%, naphthalenesulfonate (wetting and dispersing agent) 3%, polyethylene pyrrole Alkanone (binder) 3%, white carbon black (filler) 5%, sepiolite (filler) make up to 100%.

[0075] The preparation method is as follows: fully mix the active ingredients, pull-off powder, naphthalenesulfonate, white carbon black, and sepiolite in proportion, and pulverize them to less than 325 mesh through a jet mill to obtain mother powder, and mix the mother powder with polyethylene The aqueous solution of pyrrolidone is fully mixed, then granulated, dried and sieved to prepare 21% pyriproxyfen·beauveria bassiana granules.

[0076] The insecticide composition is used in the prevention and treatment of heteromorphic fungus mosquitoes. Be...

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Abstract

The invention discloses an insecticide composition for ophthalmidae pests and an application thereof, belonging to the technical field of pesticides. The main effective active ingredients of the insecticidal composition of the present invention are pyriproxyfen and Beauveria bassiana, after mixing these two active ingredients with liquid or solid carrier according to weight ratio, adding surfactant and other components can be prepared. The insecticidal composition of the present invention is used for the larvae of Oculomidae pests, mainly including the larvae of Zingiberia heteromorpha and the larvae of Chive Bradyphagia during storage, and the mechanism of action of its active ingredients pyriproxyfen and Beauveria bassiana It is completely different. The compound can synergize the larvae of Oculomidae pests, improve the control effect, reduce the use of pesticides, delay the emergence of drug resistance, and reduce the risk of resistance.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to an insecticide composition containing pyriproxyfen and Beauveria bassiana for ophthalmidae pests. Background technique [0002] Pests of the Oculomidae family mainly include Phyxia scabiei and Bradysiaodoriphaga, etc. Phyxia scabiei is an important pest during the storage period of ginger. The larvae are commonly known as "ginger maggots", and ginger often suffers local damage. , only crude fiber and granular insect droppings are left in the damaged area, which can also cause rot and seriously affect the commerciality of finished ginger; Chive tardigrades mainly damage vegetable crops such as Liliaceae and Compositae, among which leeks in northern protected areas are particularly serious. It can cause a loss of 30-80% of the yield of leeks. Farmers use a large amount of chemical pesticides to prevent and control the pests of the Oculomidae family. At present, phoxi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/30A01N43/40A01P7/04
CPCA01N43/40
Inventor 周超张勇马冲吴翠霞宋敏张田田孔繁华
Owner TAIAN ACAD OF AGRI SCI
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