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

被引：94

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

页码：1437 / 1441

页数：5

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