A kind of method of preventing and treating grain insect mildew

A technology for grain and grain warehouses, which is applied in the field of prevention and control of grain insects and mildew, and can solve problems such as strong irritating gas, damage to the central nervous system, and toxicity

Active Publication Date: 2021-09-03
SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, this commitment will also be implemented in food disinfection; sulfuryl fluoride is a colorless, poisonous, and highly irritating gas at normal temperature and pressure, and its acute toxicity mainly damages the central nervous system and causes convulsions; in addition, it will also Deposits in human bones with cumulative poisoning risk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Grain varieties: corn, rice, wheat, soybeans;

[0017] Diseases: Aspergillus, Penicillium, Trichoderma, Cladoderma cereus, Rhizopus, Trichoderma, Staphylococcus aureus, Escherichia coli, Bacillus megaterium, Bacillus subtilis, Pseudomonas fluorescens, black beetle, grain robber, warehouse Pan and barn mites;

[0018] Fumigant: vinyl sulfonyl fluoride (CAS:667-25-8);

[0019] Approach:

[0020] Put the fumigant and grain samples in the fumigation chamber, close the fumigation chamber, control the temperature in the fumigation chamber to 15°C, and after 24 hours of fumigation, depressurize and pump for 1 hour, then ventilate and replace the gas for 1 hour, end the fumigation, take out In the insect cage, the death of the black skin beetle and the grain robber was seen, but the death of the barn pan and the barn mite was not seen.

[0021] It is known by microscope inspection that no mold has grown on the grain samples after the above-mentioned fumigation treatment; ...

Embodiment 2

[0027] Grain varieties: corn, rice, wheat, potato;

[0028] Diseases: Aspergillus, Penicillium, Trichoderma, Cladomycetes cereus, Rhizopus, Trichoderma, Staphylococcus aureus, Escherichia coli, Bacillus megaterium, Bacillus subtilis, Pseudomonas fluorescens, Grain beetle, Grain robber, Cangpan and warehouse mites;

[0029] Fumigant: phenylsulfonyl fluoride (CAS:368-43-4);

[0030] Approach:

[0031] Put the fumigant and grain samples in the fumigation chamber, close the fumigation chamber, control the temperature in the fumigation chamber to 20°C, carry out fumigation for 12 hours, depressurize and pump for 36 hours, then ventilate for 36 hours, end the fumigation, and take out the insect cage , it can be seen that the grain beetles and grain robbers died, but the warehouse pans and warehouse mites did not die.

[0032] It is known by microscope inspection that no mold has grown on the grain samples after the above-mentioned fumigation treatment;

[0033] And by the dete...

Embodiment 3

[0038] Grain varieties: corn, rice, wheat, soybeans, soybeans, sweet potatoes;

[0039] Diseases: Aspergillus, Penicillium, Trichoderma, Cladoderma cereus, Rhizopus, Trichoderma, Staphylococcus aureus, Escherichia coli, Bacillus megaterium, Bacillus subtilis, Pseudomonas fluorescens, black beetle, book lice, warehouse Pan and barn mites;

[0040] Fumigant: benzylsulfonyl fluoride (CAS:329-98-6);

[0041] Approach:

[0042] Put the fumigant and grain samples into the fumigation chamber, close the fumigation chamber, control the temperature in the fumigation chamber to 30°C, carry out fumigation for 1 hour, depressurize and pump for 24 hours, and then ventilate for 24 hours, end the fumigation, and take out the insect cage , it can be seen that the black beetle and booklice died, but the warehouse pan and warehouse mite did not die.

[0043] It is known by microscope inspection that no mold has grown on the grain samples after the above-mentioned fumigation treatment;

[0...

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PUM

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Abstract

The invention discloses a method for preventing and controlling grain insect mold. The method is to use the compound of the chemical structure shown in the general formula I as a fumigant to fumigate the grain in the granary at 15-65°C for 1-24 hours, and then Decompression and pumping for 1 to 36 hours, followed by ventilation and air replacement for 1 to 36 hours; R in the general formula I is selected from C 2 -C 4 Alkenyl, C 2 -C 4 Alkynyl, phenyl, benzyl, C 3 -C 8 Cycloalkyl, pyrazolyl, imidazolyl, C 3 -C 8 Any of the cycloalkene groups. The present invention not only realizes the safe and effective prevention and control of common insect mold diseases in grain, but also realizes the safe and effective prevention and control of warehouse pan and warehouse mite pests which are more harmful but difficult to control, and has no problem of fumigant residue and does not affect grain quality And human health, has the advantages of green environmental protection.

Description

technical field [0001] The invention relates to a method for preventing and controlling grain insect mold, and belongs to the technical field of grain preservation. Background technique [0002] According to Liu Yang, a researcher at the Institute of Agricultural Products Processing of the Chinese Academy of Agricultural Sciences, "Our country invests hundreds of billions of yuan every year to strive for a 1% increase in grain production, but the annual post-harvest loss of grain due to mildew is as high as 21 million tons, accounting for 90% of the country's total grain output." 4.2%, causing direct economic losses of about 18 billion to 24 billion yuan." [0003] In addition, mycotoxin pollution also seriously restricts my country's foreign trade. In recent years, food safety incidents caused by mycotoxin contamination have occurred frequently, which not only seriously threatens the health of human and livestock in our country, but also restricts the foreign trade of agri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/56A01P3/00A01P7/02A01P7/04A23B9/26
CPCA01N43/56A23B9/26
Inventor 姜标张琛
Owner SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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