Effect of biofertilizers and neem oil on the entomopathogenic fungi Beauveria bassiana (Bals.) Vuill. and Metarhizium anisopliae (Metsch.) Sorok

被引:38
|
作者
Hirose, E
Neves, PMOJ
Zequi, JAC
Martins, LH
Peralta, CH
Moino, A
机构
[1] Univ Estadual Londrina, Dept Agron, BR-86051970 Londrina, PR, Brazil
[2] Univ Fed Lavras, Dept Entomol, BR-37200000 Lavras, MG, Brazil
关键词
organic agriculture; entomopathogenic fungi; toxic effect;
D O I
10.1590/S1516-89132001000400013
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The in vitro fungitoxic effect of three biofertilizers, E.M.-4, Multibion(TM) and Supermagro used in organic agriculture and the neem oil (Azadirachta indica A. Juss) on the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana was studied. These products were mixed in a medium where the two fungi were inoculated, and germination, vegetative growth and conidiogenesis were assessed. The biofertilizers Supermagro and E.M.-4 showed to be less toxic for the two fungi whereas Multibion(TM) caused major inhibition on M. anisopliae, with reductions in germination (-37.74%), colony diameter (-30.26%) and conidiogenesis (-42.62%). Neem oil promoted a larger negative effect on B. bassiana, inhibiting germination (-45.27%), colony diameter (-36.62%) and conidiogenesis (-84.93%).
引用
收藏
页码:419 / 423
页数:5
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