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Suspension concentrate of emamectin benzoate and chlorfenapyr, and preparation method and application thereof

A technology of emamectin and benzoate, which is applied in the field of pesticides, can solve the problems such as the decline of control effect, and achieve the effects of reducing dosage, delaying resistance and reducing environmental pollution

Inactive Publication Date: 2017-03-22
SHANDONG RUNBO BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, chemical control is still the main measure to control Spodoptera litura in my country, but Spodoptera litura has strong resistance to pesticides, and long-term and large-scale use of a single agent often makes it resistant to pesticides and reduces the control effect.

Method used

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  • Suspension concentrate of emamectin benzoate and chlorfenapyr, and preparation method and application thereof
  • Suspension concentrate of emamectin benzoate and chlorfenapyr, and preparation method and application thereof
  • Suspension concentrate of emamectin benzoate and chlorfenapyr, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Toxicity assay test

[0030] (1) Tested pests and pesticides:

[0031] Eggs of Spodoptera litura were collected from cabbage fields in Shijiayu Village, Caishi Town, Jinan City, Shandong Province, and artificially reared in the laboratory of Shandong Runbo Biotechnology Co., Ltd., and the 3rd instar larvae were used for experiments. The environmental conditions for breeding are: temperature (25±1)°C, relative humidity (80±1)%, and photoperiod L:D=13:11h. The host plant tested was cabbage, and the variety used was Jingfeng No.1.

[0032] (2) Pesticides to be tested and test methods:

[0033] 73% emamectin benzoate TC (Sublimation Baker), 98% chlorfenapyr TC (Yanxin Chemical).

[0034] The test method adopts spot method to measure the toxicity. According to the mass concentration range of the toxicity determined by the preliminary toxicity measurement, the original pesticide to be tested is diluted with acetone into 5~6 mass concentration gradients, and 1 μL ...

Embodiment 2

[0043]The formula is: active ingredient 15.0% (emamectin benzoate 5.0%, chlorfenapyr 10.0%); dispersant is naphthalenesulfonate formaldehyde condensate 2.0%, polyoxyethylene polyoxypropylene block copolymer 2.0% polycarboxylate sodium salt and 1.0% polycarboxylate; wetting agent is mixed with sodium lauryl sulfate 0.5% and alkylnaphthalene sulfonate condensation polymer 1.0%; defoaming agent is organosilicone 0.3%; antifreeze is a mixture of ethylene glycol 3% and diethylene glycol 2%; thickener is a mixture of xanthan gum 0.2% and magnesium aluminum silicate 0.4%; preservative is paraformaldehyde 0.2%; Add water to make up 100%.

[0044] The preparation method is:

[0045] (1) After mixing water, wetting agent, dispersant, defoamer and preservative, it is evenly sheared at high speed;

[0046] (2) Add emamectin benzoate and chlorfenapyr to the mixture obtained in step (1), and use a dispersing disc to disperse evenly;

[0047] (3) Put the mixture obtained in step (2) into ...

Embodiment 3

[0050] The formula is: 20.0% active ingredients (10.0% emamectin benzoate, 10.0% chlorfenapyr); the dispersant is 2.0% naphthalenesulfonate formaldehyde condensate, polyoxyethylene polyoxypropylene block copolymer 2.0% polycarboxylate sodium salt and 1.0% polycarboxylate; wetting agent is mixed with sodium lauryl sulfate 0.5% and alkylnaphthalene sulfonate condensation polymer 1.0%; defoaming agent is organosilicone 0.3%; antifreeze is a mixture of ethylene glycol 3% and diethylene glycol 2%; thickener is a mixture of xanthan gum 0.2% and magnesium aluminum silicate 0.4%; preservative is paraformaldehyde 0.2%; Add water to make up 100%.

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Abstract

The invention discloses a suspension concentrate of emamectin benzoate and chlorfenapyr, and a preparation method and application thereof. The suspension concentrate comprises, by weight, 1 to 10% of emamectin benzoate, 5 to 15% of chlorfenapyr, 2 to 8% of a dispersing agent, 1 to 2% of a wetting agent, 0.1 to 0.5% of an antifoaming agent, 3 to 7% of an anti-freezing agent, 0.2 to 1% of a thickening agent and 0.1 to 0.3% of an antiseptic, with the balance being water. According to the invention, emamectin benzoate and chlorfenapyr are compounded for preparation of the suspension concentrate; emamectin benzoate and chlorfenapyr in a specific ratio have high joint toxicity to Lepidopteran pests; and through mixing of emamectin benzoate and chlorfenapyr, the dosage of chemical pesticides in a field is effectively reduced, so resistance of insects to pesticides is delayed and environmental pollution is alleviated.

Description

technical field [0001] The invention relates to an aqueous suspension, in particular to an aqueous suspension of emamectin benzoate and chlorfenapyr and its preparation method and application, belonging to the technical field of insecticides. Background technique [0002] Emamectin B1 Benzoate, referred to as emamectin for short, is a macrolide high-efficiency antibiotic insecticide and acaricide developed by Merkco in the United States. Its mechanism of action is to interfere with the neurophysiology of insects activity, stimulating the release of γ-aminobutyric acid, and inhibiting the conduction of nerve impulses in insects. It is an ultra-efficient and low-toxic insecticide, especially the beet armyworm and cabbage leaf moth that are severely resistant to conventional pesticides. The product has stomach poisoning and contact killing effects. If it is used on economic crops such as vegetables, tobacco, tea, cotton, and fruit trees, it has incomparable activity against oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/90A01N43/36A01P7/04
CPCA01N43/36A01N43/90A01N2300/00
Inventor 孙国庆侯永生吴勇李鹏鹏赵保臣
Owner SHANDONG RUNBO BIOTECH CO LTD