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Chitosan oligosaccharide-containing composition for controlling acarid, and application and method thereof

A technology of chitosan oligosaccharide and composition is applied in the field of agricultural chemicals, which can solve the problems of ineffectiveness of winter eggs, and achieve the effects of improving acaricidal activity, improving stress resistance, and improving the effect of killing acarids.

Active Publication Date: 2012-11-14
HAINAN ZHENGYE ZHONGNONG HIGH TECH
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AI Technical Summary

Problems solved by technology

0.005%-0.009% tin triazole is a miticide with strong contact effect, which can kill adult mites and nymphs and summer eggs, but is ineffective for winter eggs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 contains the biological activity assay of the composition of chitosan oligosaccharide and acaricide

[0024] Dilute chitosan oligosaccharide single agent, acaricide single agent, and a certain mass ratio of chitosan oligosaccharide and acaricide composition to a certain concentration, and then apply them to citrus red spiders respectively, and measure the lethal concentration of each test agent respectively LC 50 , and calculate the co-toxicity coefficient of each mixed agent according to the co-toxicity coefficient calculation formula, the results are shown in Table 1 below:

[0025] Table 1 Synergistic effect of different compound agents on citrus spider mite

[0026] potion

[0027] Oligochitosan: Amitraz

[0028] As can be seen from Table 1, the co-toxicity coefficient of oligochitosan and different acaricides to citrus spider mites is far greater than 120, indicating that oligochitosan in the composition increases the acaricidal ef...

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PUM

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Abstract

The invention relates to a chitosan oligosaccharide-containing composition for controlling acarid, and application and a method thereof. The composition comprises acaricide and chitosan oligosaccharide, wherein, the weight ratio of chitosan oligosaccharide to acaricide is 1:0.025-40. According to the invention, chitosan oligosaccharide can be in compound application with acaricide, thereby inhibiting acarid, improving acaricidal activity, enhancing crop stress resistance and producing the effects of diseases prevention and growth promotion. Addition of acaricide into chitosan oligosaccharide enables the acaricidal effect of acaricide to be improved and growth of crops to be promoted.

Description

technical field [0001] The invention belongs to the field of agricultural chemicals, and in particular relates to an acaricide containing chitosan oligosaccharide, a preparation method thereof and an application for preventing and controlling underground mites. Background technique [0002] Most of the current acaricides have the characteristics of both acaricide and acaricide. There are many varieties of acaricides. For example, acarid has contact killing and stomach poisoning effects, which is effective for adults and nymphs, but has poor egg killing effect. When the temperature is above 20°C, the efficacy can be improved. It is harmful to the young shoots of citrus and also to the young sweet orange fruit. It is easy to cause sunburn on the fruit when the drug is used at high temperature, and it will also affect the chlorosis near the navel. Therefore, the concentration should not be increased arbitrarily when using the drug. Acetate is one of the varieties that are less...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01P7/02A01N43/58A01N41/02A01N55/04A01N37/52A01N43/56A01N47/38A01N47/34A01N43/12
Inventor 张善学陆红霞张余胜陈丁丁侯华民
Owner HAINAN ZHENGYE ZHONGNONG HIGH TECH
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