Studies on the Bacteriostasis Activity of Azadirachtin Against Bt-8010 and Bt-7216

doi:10.3321/j.issn:1000-7091.2006.05.031

Abstract

Abstract: The fruits of Melia azedarach L.were dried and ground to powder,from which the extracts were obtained using methanol as solvent by means of the ultrasonic-assisted method,and then were made into different concentrations.The extracts were used to study the bacteriostatic circle and the bacteriostic percentage to two biological pesticides,Bt-8010 and Bt-7216.The result indicated that the higher the extract concentration of Melia azadarach L.was,the greater the bacteriostatic effect was.The bacteriostatic effect to Bt-7216 was higher than to Bt-8010.Mixing the Bt with high concentration of extracts of Melia azedarach L would reduce the bacteriostatic effect.

Key words: Melia azadarach L., Bacillus, Bacillus thuringiensis, Bacteriostasis activity

CLC Number:

Q945

ZHAI Xing-li, LIU Xiu-hua. Studies on the Bacteriostasis Activity of Azadirachtin Against Bt-8010 and Bt-7216[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(5): 132-134. doi: 10.3321/j.issn:1000-7091.2006.05.031.

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