Compound plant source agricultural fungicide and preparation thereof
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A plant-derived fungicide and fungicide technology, applied in the field of pesticides, can solve the problem of few plant-derived fungicides, and achieve the effect of being difficult to drug resistance
Inactive Publication Date: 2008-07-02
INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI
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At present, some plant pesticide patents or products have been published in my country, but m
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Embodiment 1
[0032] Embodiment 1, extract preparation
[0033] Weigh 30kg of Shichangpu and 70kg of Sophora flavescens, mix and crush them through a 40-mesh sieve, and soak in 400kg of ethanol for 24 hours. Reflux extraction in the reaction kettle, extraction temperature 80°C, extraction time 3h, filter, extract twice in the same way, combine the two filtrates, then concentrate and recover the solvent to 1 / 2 of the original drug amount, that is, set the volume to 50kg, to obtain Extract.
[0034] Buy cinnamon oil and eucalyptus oil from the market, weigh 5 kg of cinnamon oil, 5 kg of eucalyptus oil, 40 kg of extracts of Acorus calamus and Sophora flavescens, and obtain the total plant extract.
Embodiment 2
[0035] Embodiment 2, the preparation of fungicide emulsifiable concentrate
[0036] Add 35 kg of total plant extracts, 25 kg of methanol and 25 kg of ethanol, 9 kg of alkylphenol polyoxyethylene ether surfactants, and 6 kg of penetrant in the reaction kettle, and stir evenly to obtain bactericide emulsifiable concentrate.
Embodiment 3
[0037] Embodiment 3, the preparation of bactericide aqueous emulsion and microemulsion
[0038] In the reaction kettle, add 35kg of total plant extract, 10kg each of methanol and ethanol, 10kg of alkylphenol polyoxyethylene ether surfactant, 5kg of penetrant, and 35kg of water, and stir evenly to obtain bactericide water emulsion or microemulsion .
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Abstract
The invention discloses a compound plant source disinfectant and a method for preparing the disinfectant. The disinfectant is made by the materials of cassia oil, sweetflag, sophora flavescens and eucalyptus oil of traditional Chinese medicines. The main effective components of the disinfectant are the cassia oil, the Beta-asarol and the matrine. After being extracted, the materials are matched with an accessory ingredient to be made into various missible oil, emulsion in water and other various preparations. The disinfectant has broad spectrum and excellent restraining effects on various plant pathogenicbacterias. The plant source disinfectant of the invention has the advantages of high efficiency, low mammalian toxicity; the harmful bacterias are difficult to generate drug fastness on the disinfectant. A field test shows that the control effect on the gen-seng leaf spot is better than that of 70 percent of mancozeb. The invention can be taken as an ideal and eco-friendly pesticide.
Description
1. Technical field [0001] The invention relates to a pesticide, in particular to a botanical fungicide. 2. Background technology [0002] The application of chemically synthesized pesticides has the characteristics of good control effect and fast action, and is currently one of the important means of pest control. However, the long-term, large-scale, and irrational use of chemically synthesized pesticides, especially the application of highly toxic and high-residue pesticides, has resulted in excessive pesticide residues, polluted the environment and agricultural products, endangered human and animal health, developed resistance to pests and diseases, and reduced the control effect. Even a large number of natural enemies are killed, causing pests and diseases to rampant again and destroying the ecological balance. This is the so-called "3R" problem of chemical pesticides. [0003] Botanical pesticides have the characteristics of low toxicity and no residue, which are relat...
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Application Information
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IPC IPC(8): A01N65/00A01P3/00
CPCY02A50/30
Inventor 樊瑛高微微
Owner INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI
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