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A molluscicide for fertilizing and killing molluscs with double-effect organic fertilizer, its preparation method and its application

A technology of organic fertilizer and molluscicide, applied in the field of agricultural pesticides, can solve the problems of soil and water pollution, eutrophication of water body, etc., and achieve the effect of reducing the harm of schistosomiasis infection, obvious ecological effect, and easy reproduction

Active Publication Date: 2021-10-15
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional chemical fertilizers have a certain lethal effect on snails, a large amount of chemical fertilizers will cause serious pollution to the soil and water, leading to aggravation of water eutrophication

Method used

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  • A molluscicide for fertilizing and killing molluscs with double-effect organic fertilizer, its preparation method and its application
  • A molluscicide for fertilizing and killing molluscs with double-effect organic fertilizer, its preparation method and its application
  • A molluscicide for fertilizing and killing molluscs with double-effect organic fertilizer, its preparation method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 Extraction of quaternary ammonium triphenanthridine alkaloids see detection

[0043] Extraction of quaternary ammonium triphenanthridine alkaloids:

[0044] (1) The quaternary amine triphenanthridine alkaloids can come from plants such as Boluohui, celandine, blood water grass, etc. In this embodiment, taking Boluohui as an example to describe in detail, wash it with clean water and dry it, and ultrasonically smash.

[0045] (2) Extract the plant powder with acid water (hydrochloric acid, pH 1.5) in a water bath at 85° C. for 3 hours according to the ratio of M:V (mass volume ratio) = 1:10. Then use vacuum filtration to collect the filtrate. Repeat three times, combine the filtrate, add high-concentration sodium hydroxide solution, adjust the pH to 10, let it stand overnight, centrifuge to collect the precipitate, dry and freeze-dry in vacuum to obtain a brown yellow powder, that is, the total alkali of Boluohui.

[0046] (3) Separation of benzophenanthridi...

Embodiment 2

[0047] Example 2 Detection of Molluscicidal Effect of Quaternary Ammonium Triphenanthridine Alkaloids

[0048]Taking niclosamide ethanolamine salt, spiroxamine, as the control, the quaternary ammonium benzophenanthridine alkaloids were prepared with different concentrations of solutions with water as the solvent, and the indoor immersion method recommended by "WTO" was used to explore the quaternary ammonium benzophenanthridine alkaloids. Molluscicidal effect of phenanthridine alkaloids. The mollusc killing effect is shown in the following table 1 and Figure 8 .

[0049] Table 1 Molluscicidal effect of quaternary ammonium triphenanthridine alkaloids

[0050]

[0051] It can be known from Table 1 that when the concentration of the quaternary ammonium triphenanthridine alkaloids extracted from the Boluohuiguo folder was 7.5 mg / L, the lethality of Oncomelania snails reached 100% after treatment for 72 hours; when the concentration was 2.5 mg / L , after 120 hours of treatmen...

Embodiment 3

[0053] Example 3 Indoor molluscicide test and effect evaluation of Boluohui quaternary amine benzophenanthridine alkaloid and potassium peptide fertilizer compound molluscicide

[0054] For the formula of the fertilizer-type water agent molluscicide used in this example, see the potassium peptide fertilizer formula given in Example 4.

[0055] Indoor molluscicide efficacy test of molluscicides: carried out in accordance with "Efficacy Test Methods and Evaluation of Molluscicides for Pesticide Registration" NY / T1617-2008.

[0056] Test conditions: laboratory temperature is 26±1°C, relative humidity is 65±5%.

[0057] Oncomelania hupensis to be tested: Oncomelania hupensis collected from the field in Hubei Province. Negative snails with 6-8 spins were isolated in the laboratory.

[0058] Instruments and equipment: electronic balance, incubator, measuring cylinder, weighing bottle, beaker (300ml), PH tester, sprayer, stirrer, petri dish (diameter 9cm), snail bag, copper hammer, ...

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Abstract

The invention belongs to the technical field of agricultural insecticides, and in particular relates to a molluscicide with double-effect molluscicide for fertilization and molluscicide and its application. The object of the present invention is to provide a kind of molluscicide of botanical quaternary amine triphenylphenanthridine alkaloid organic fertilizer, which not only has molluscicidal effect, but also has growth-promoting effect on paddy rice; another object is to provide the alkaloid and The optimal ratio and preparation method of organic peptide fertilizer. The invention avoids the use of chemical fertilizers and chemical molluscicides, and plays an extremely important role in solving the toxicity of chemical molluscicides to aquatic fish and the pollution and harm of chemical fertilizers. The double-effect molluscicide of the present invention comprises the following components: quaternary ammonium triphenanthridine alkaloid concentration: 7.5-35mg / L; potassium peptide fertilizer volume ratio concentration: 1ml / L-40ml / L; synergist volume ratio Concentration: 0.1%‑2%.

Description

technical field [0001] The invention belongs to the technical field of agricultural insecticides, and in particular relates to a molluscicide with double-effect molluscicide for fertilization and molluscicide and its application. Background technique [0002] At present, chemical molluscicides are still the main molluscicides in China. For example, niclosamide is the only chemical molluscicide recommended by the World Health Organization (WHO) since 1972. Although the molluscicidal effect is good, it has an Achilles’ heel, that is, it is highly toxic to amphibians and fish. Under the effective molluscicidal concentration, it can cause a large number of amphibians and fish to die. Therefore, the use of niclosamide is limited and cannot be used in fish, crab and other breeding areas; Thereby leading to the reduction of molluscicidal effect. Therefore, the research and development of biological molluscicides including plant molluscicides has become one of the current focuses....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90C05G3/00C05G3/60C05G5/20A01P9/00
CPCA01N43/90C05G1/00C05G3/00
Inventor 柯文山涂昌孙启祥张倩张明佳
Owner HUBEI UNIV
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