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Nicandra physaloides oil botanical biological pesticide and preparation method thereof

A biopesticide and pseudophysalis technology, applied in botany equipment and methods, plant growth regulators, biocides, etc., to achieve the effects of protecting the ecological environment, reducing the number of times and doses of use, and reducing the amount of pesticide residues

Inactive Publication Date: 2010-09-29
INST OF PLANT PROTECTION GANSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processing technology of pseudophysalis oil emulsion is simple, low in cost, suitable for industrial production, and overcomes the disadvantages of complex production process and high cost of many botanical pesticides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 30 parts of pseudophysalis oil, 20 parts of solvent (5 parts of methanol, 5 parts of ethanol, 6 parts of n-butanol, 4 parts of isopropanol), 15 parts of emulsifier (8 parts for 2201, 4 parts for 1601, 3 parts for 0201B) , 0.5 parts of penetrant (0.5 part of penetrant BX), 1 part of antifreeze (1 part of ethylene glycol).

[0019] Its preparation method is as follows:

[0020] 1. Grind the dried pseudophysalis seeds to 30 mesh with a pulverizer and pour them into the extraction tank, add solvent for extraction 3 times, each time the amount of solvent is the same, the extraction time is 24, 48, and 72 hours respectively, and combine Three extractions, pour the extract into a concentration tank and concentrate under reduced pressure at -0.06MPa, 45°C until the solvent evaporates to obtain the mother liquor of pseudophysalis oil. Recover the solvent for later use.

[0021] 2. Add 30 parts of fake Physicum oil mother liquor into the preparation kettle at 20°C, then add sol...

Embodiment 2

[0023] 35 parts of pseudophysicum oil, 35 parts of solvent (10 parts of benzene, 10 parts of toluene, 7 parts of xylene, 8 parts of dimethyl sulfoxide (DMSO)), 25 parts of emulsifier (10 parts of 0203B, 10 parts of 127, 103 5 parts), 2 parts of penetrant (2 parts of azone), 3 parts of antifreeze (3 parts of urea).

[0024] Its preparation method is as follows:

[0025] 1. Grind the dried pseudophysalis seeds to 40 mesh with a pulverizer, then pour them into the extraction tank, add solvent for extraction 4 times, each time the amount of solvent is the same, and the extraction time is 26, 50, 60, and 70 hours respectively , combined four extractions, poured the extract into a concentration tank at -0.06MPa, 45°C and concentrated under reduced pressure until the solvent evaporated to obtain the mother liquor of pseudophysalis oil. Recover the solvent for later use.

[0026] 2. Add 35 parts of pseudo-physalis oil mother liquor into the preparation kettle at 20°C, then add solve...

Embodiment 3

[0028] 40 parts of pseudophysalis oil, 50 parts of solvent (20 parts of dimethylformamide (DMF), 30 parts of cyclohexanone), 30 parts of emulsifier (10 parts of 700#, 10 parts of 500#, 10 parts of OP-10 ), 3 parts of penetrant (3 parts of penetrant T), 5 parts of antifreeze (5 parts of calcium chloride).

[0029] Its preparation method is as follows:

[0030] 1. Grind the dried pseudophysalis seeds to 50 mesh with a pulverizer and pour them into the extraction tank, add solvent for extraction 5 times, each time the amount of solvent is the same, and the extraction time is 25, 40, 50, 60, After 70 hours, the five extracts were combined, poured into a concentration tank at -0.06MPa, and concentrated under reduced pressure at 45°C until the solvent evaporated to obtain the mother liquor of pseudophysalis oil. Recover the solvent for later use.

[0031] 2. Add 40 parts of fake Physalis oil mother liquor into the preparation kettle at 20°C, then add solvent in proportion, stir an...

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PUM

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Abstract

The invention relates to a nicandra physaloides oil botanical biological pesticide. A traditional botanical biological pesticide has complicated production process and too high cost. In the invention, the formula comprises the following raw materials: 30 to 40 parts of nicandra physaloides oil, 20 to 50 parts of solvent, 15 to 30 parts of emulsifying agent, 0.5 to 3 parts of penetrant and 1 to 5 parts of antifreeze. The nicandra physaloides oil botanical biological pesticide is prepared by the following steps of: pulverizing nicandra physaloides seeds, adding the solvent, merging an extract after soaking and extracting for many times, decompressing, concentrating until the solvent is completely volatilized to obtain the mother liquid of the nicandra physaloides oil, then adding the solvent into the mother liquid of the nicandra physaloides oil and adding the emulsifying agent, the penetrant and the antifreeze after dissolving so as to obtain a finished product of nicandra physaloides oil emulsion after mixing evenly. The invention has simple processing process and low cost and is suitable for industrialized production, the used emulsion has good quick-acting property and long acting period, the use frequency and the use dosage of chemical pesticides can be greatly reduced, the pesticide residue in melons and vegetables is effectively lowered, the ecological environment is protected, and the quality safety of agricultural products is promoted.

Description

technical field [0001] The invention relates to the field of plant-derived biopesticides for controlling aphids and red spiders in melon and vegetable crops, in particular to a formula of pseudophysalis oil plant-derived biopesticides and a preparation method thereof. Background technique [0002] Aphids [Myzus persicae (Sulzer), Aphis gossypii Glover, Brevicorynebrassicae (L.) and Lipaphis erysimi (Kaltenbach), etc.] and spider mites [Tetranychus cinnabarinus (Boiduval), Tetranychus truncation T.truncates Ehara and two-spotted spider mite T.urticae Koch, etc.] are the main pests that harm melon and vegetable crops. With the global warming and the continuous expansion of protected cultivation areas, the damage caused by them is serious year by year. High temperature can increase the number of occurrence bases and increase the number of occurrence generations, and the protected area becomes a place for a large number of pests to overwinter and reproduce in winter. Secondly, ...

Claims

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Application Information

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IPC IPC(8): A01N65/38A01N25/04A01P7/04A01P7/02
Inventor 胡冠芳刘敏艳李玉奇余海涛张新瑞李建军赵峰
Owner INST OF PLANT PROTECTION GANSU ACAD OF AGRI SCI
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