Endophytic Beauveria bassiana in banana (Musa spp.) reduces banana weevil (Cosmopolites sordidus) fitness and damage

被引：91
|
作者：
Akello, J. [1 ,2 ]
Dubois, T. [1 ]
Coyne, D. [1 ]
Kyamanywa, S. [2 ]
机构：
[1] Int Inst Trop Agr, Kampala, Uganda
[2] Makerere Univ, Fac Agr, Kampala, Uganda
来源：
CROP PROTECTION | 2008年 / 27卷 / 11期
关键词：
Beauveria bassiana; Cosmopolites sordidus; Endophyte; Entomopathogen; Musa;
D O I：
10.1016/j.cropro.2008.07.003
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
The effect of endophytic Beauveria bassiana in banana (Musa spp.) plants against the banana weevil Cosmopolites sordidus was examined in a screenhouse study in Uganda. Tissue-cultured banana plants (cv. Kibuzi, genome group EA-AAA) were inoculated by dipping roots in a B. bassiana suspension of 1.5 x 10(7) conidia/ml for 2 h. C sordidus larvae were introduced 2 months later. Two weeks after larval infestation, endophytic B. bassiana significantly reduced larval survivorship (23.5-88.9% mycosis), resulting in 42.0-86.7% reduction of plant damage. This study has demonstrated for the first time that endophytic B. bassiana can be used to target the cryptic and damaging stage of C sordidus, and offers an alternative, effective delivery mechanism for this biological control agent. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1437 / 1441
页数：5
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