The entomopathogenic fungus Metarhizium majus (isolate no. CPCRIMKY-1) is a potential bio control agent against the major pest of banana, Odoiporus longicollis (Olivier). Banana is highly vulnerable to a plethora of pests and diseases which are managed by the application of pesticides. Hence, it is imperative that the reactions of these pesticides when used in banana agro-system with M. majus, is studied in detail. A study was conducted at the College of Agriculture, Kerala Agricultural University, India to evaluate the effect of pesticides used on banana at field doses, on the survival of the entomopathogenic fungus. This study is expected to help in formulating meaningful biotic stress management strategies in banana agro-systems, especially in areas of severe Odoiporus longicollis infestation. It was found that thiamethoxam at 0.01 and 0.03% and cartap hydrochloride 0.05% were safe while all tested fungicides except azoxystrobin 0.1% were toxic to M. majus. Wherever there arises a demand for the application of fungicides in banana, application of M. majus may be adopted after following a proper waiting period. Synergistic effect of thiamethoxam and M. majus can be used for the effective management of O. longicollis.

中文翻译：

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香蕉农业系统中使用的农药对昆虫病原真菌绿僵菌 Bisch、Rehner 和 Humber 的影响

昆虫病原真菌绿僵菌（分离株编号 CPCRIMKY-1）是一种潜在的生物防治剂，可对抗香蕉的主要害虫 Odoiporus longicollis (Olivier)。香蕉极易受到多种病虫害的侵害，而这些病虫害和疾病是通过使用杀虫剂来控制的。因此，必须详细研究这些农药在香蕉农业系统中与 M. majus 的反应。印度喀拉拉邦农业大学农学院进行了一项研究，以评估在香蕉上使用的农药对大田剂量的杀虫剂对昆虫病原真菌存活的影响。预计这项研究将有助于在香蕉农业系统中制定有意义的生物胁迫管理策略，特别是在严重 Odoiporus longicollis 侵染的地区。发现噻虫嗪在 0.01 和 0. 03% 和盐酸甲磺酸盐 0.05% 是安全的，而除嘧菌酯 0.1% 外，所有测试的杀菌剂都对 M. majus 有毒。如果香蕉需要使用杀菌剂，经过适当的等待期后，可以采用M. majus。噻虫嗪与 M. majus 的协同作用可用于有效管理 O. longicollis。