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Plant protection composition containing chitosan oligosaccharide and dinotefuran

A technology of dinotefuran and chitosan oligosaccharide, applied in the field of pesticides, can solve the problems of low crop safety and the like

Inactive Publication Date: 2015-08-05
CHINA KINGDOM AGRITECH QINGDAO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chitin overcomes the shortcomings of traditional hormone fertilizers that are less safe for crops due to the difficulty in controlling the amount of application. At the same time, it has the effect of soil improvement and disease resistance and insect control that hormone fertilizers do not have.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 The proportioning of the plant protection composition of each dosage form

[0020] The wettable powder comprises the following components by weight percentage: 3% chitosan, 60% dinotefuran, 3% SW, 7% BDWG, 3% CBD, 10% ammonium sulfate, and 100% kaolin.

[0021] The dispersible granules include the following components by weight percentage: chitosan oligosaccharide 2%, dinotefuran 20%, WL 3%, 82P 7%, ammonium sulfate 20%, kaolin added to 100%.

[0022] Dispersible granules can also be the following ratio: 5% chitosan, 15% dinotefuran, 2% sodium lauryl sulfate, 3% sodium lignosulfonate, 30% ammonium sulfate, 1.5% polyvinyl alcohol , Silica supplemented to 100%.

[0023] The aqueous suspension contains the following components in weight percentage: 5% chitosan oligosaccharide, 15% dinotefuran, 4% polyoxyalkyl ether type nonionic dispersant, 1% succinate anionic wetting agent, xanthan gum 0.2%, sodium benzoate 0.4%, defoamer 0.4%, add water to 100%.

[0024]...

Embodiment 2

[0027] Example 2 Indoor Insecticide Virulence Formula Screening Example

[0028] 2.1 Insects to be tested:

[0029] Eggplant whiteflies were collected from eggplant greenhouses in the suburbs of Shouguang.

[0030] 2.2 Tested drug:

[0031] Formulations of the present invention.

[0032] 2.3 Pharmacy preparation:

[0033] Dilute the mother liquors of chitosan: dinotefuran 1:1, 1:2, 1:3, 1:5, 1:10, 1:20, 1:30 and other mixtures into 5 series of concentration gradients.

[0034] 2.4 Test method:

[0035] The leaves of eggplant were treated with chemicals by soaking leaves. Fresh eggplant leaves with the same size and no contact with any chemicals were soaked in the prepared medicinal solutions of various concentrations for 5 seconds, then taken out, dried naturally, put into insect culture boxes, and then connected The 3rd instar whitefly larvae tested were raised at 25°C, each treatment was repeated 3 times, 60 larvae were treated at each concentration, and a blank contro...

Embodiment 3

[0044] Embodiment 3, field application disease and insect pest control test

[0045] 3.1 22% Chitosan·Dinotefuran WG Control Efficacy Test of Tea Leafhopper:

[0046]Add 2% chitosan oligosaccharide, 20% dinotefuran, 3% WL, 7% 82P, 20% ammonium sulfate, and kaolin to 100% by weight. The ratio is 40g spray per mu, and the effect of preventing and controlling tea leafhoppers 15 days after the application is 92.3-95.0%. In the test, the inventor did not find that the test agent had adverse effects on the crops, and it was safe for beneficial insects.

[0047] 3.2 Efficacy test of 20% chitosan·dinotefuran WG in controlling rice white-backed planthopper

[0048] By weight 5% chitosan, 15% dinotefuran, 2% sodium lauryl sulfate, 3% sodium lignosulfonate, 30% ammonium sulfate, 1.5% polyvinyl alcohol, white carbon black to 100% . The ratio is 40g spray per mu, and the effect of controlling rice white-backed planthopper 15 days after the application is 90.5-94.2%. In the test, the inv...

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PUM

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Abstract

The invention discloses a plant protection composition containing chitosan oligosaccharide and dinotefuran. The plant protection composition comprises chitosan and dinotefuran, wherein the weight ratio of the chitosan to the dinotefuran is 1:99-99:1; the total content of the chitosan and the dinotefuran in the composition is 2%-65%; the polymerization degree of the chitosan is 3-50; the deacetylating ratio is more than 90%; and the purity degree of the dinotefuran is more than 95%. The plant protection composition can be used in the forms of wettable powder, dispersible granules, aqueous suspension, granules, granular tablets or controlled-release granules. According to the plant protection composition disclosed by the invention, preparations which are compounded by the chitosan and the dinotefuran are applied to soil or applied by spraying. The plant protection composition has dual effects of pesticides and fertilizers, achieves collaborative protection, and has the functions of killing insects, improving effects, and widening insecticidal spectrums.

Description

technical field [0001] The invention relates to a compound composition for plant protection containing chitosan and dinotefuran, which belongs to the field of pesticides. Background technique [0002] Chitosan (chitosan), also known as chitin, chitosan oligosaccharides, amino oligosaccharides, chitosan, etc., is a substance with various biological activities extracted from the shells of marine crustaceans such as shrimp skins and crab shells. . Chitin is used as a fertilizer in agricultural production, and its effects are mainly reflected in the improvement of the soil ecological environment, the comprehensive regulation of the growth of crops, the killing and inhibition of harmful organisms such as germs and nematodes, including: improving the physical environment of the soil, Solve soil compaction; improve soil fertility, alleviate soil salinization; soil disinfection and sterilization, inhibit nematodes; improve crop resistance; improve crop resistance to diseases and in...

Claims

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Application Information

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IPC IPC(8): C05G3/02A01N51/00A01P7/04A01P21/00A01N43/16C05G3/60
Inventor 林存銮杨志鹏
Owner CHINA KINGDOM AGRITECH QINGDAO
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