Comparative test of sulfuryl fluoride and aluminum phosphide local fumigation in packaged grains from building warehouse
The local emergence of grain storage pests in the grain pile,in the case of controllable grain conditions,generally take phosphine or sulfuryl fluoride local fumigation treatment.In order to compare the fumigation effect of reagents,this test 005 warehouse using sulfuryl fluoride,008 warehouse using aluminium phosphide were used to carry out local fumigation difference test.The test results after fumigation showed that no grain pests were found in the test site of 005 and 008 silos,and no yellow grain rice was found.After half a year of fumigation treatment,the test results showed that:the insecticidal effect of warehouse 005 was more obvious,the content of yellow grain rice was lower,and the fatty acid value increased slowly.For local fumigation to kill pests,sulfuryl fluoride fumiga-tion operation process is relatively simple,the impact on the quality of stored grain is relatively small,and there is a certain effect on delaying the aging,but the treatment cost is higher.If stored grain pests are found in the whole silo,the whole silo should be closed and fumigated with aluminium phosphide or air-conditioned grain storage method from the aspect of cost-saving consideration.
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