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我们和县卫生局在去年试验的基础上,于今年5月(气温最低8℃,最高27℃)又开展了应用白僵菌灭蛆的试验。用白僵菌粉水剂(白僵菌粉1斤,水50斤),对449个厕所进行喷雾(厕所平均容粪尿量0.22立方米,用白僵菌粉5克)。结果,蛆全部死完的厕所占喷菌的14.25％,死80％的占48.64％,死60％的占20.7％。同时,进行了室内观察,每盆取100头活蛆,喷菌后连同粪尿放在盆内,其中3个盆内的蛆全部死完,另外两个分别死88％和84％。
On the basis of last year’s trial, we and the County Health Bureau conducted a trial of applying Beauveria bassiana to kill maggots in May this year (the lowest temperature of 8 ℃ and the highest of 27 ℃). With Beauveria bassiana powder agent (Beauveria bassiana powder 1 kg, water 50 kg), 449 toilets were sprayed (the average capacity of the toilets was 0.22 cubic meters with Beauveria bassiana powder 5 grams). As a result, all larvae of the larvae accounted for 14.25% of the spores, 48.64% of the dead 80% and 20.7% of the dead 60%. In the meantime, indoor observation was conducted. One hundred live maggots were taken from each pot. After the fungus was sprayed together with excrement, the pots were placed in the pots. All the maggots in the three pots were dead, and the other two died 88% and 84% respectively.