Microbial Control of Maize Army Worm, Mythimna separata (Lepidoptera Noctuidae) by Entomopathogenic Fungi

作者：Malik Muhammad Naeem; Freed Shoaib^*; Gul Hafiza Tahira; Akmal Muhammad; Naeem Muhammad

来源：Pakistan Journal of Zoology, 2013, 45(6): 1607-1614.

• Maize army worm
• maize
• pathogenecity
• polyphagous
• entomopathogenic fungi
• Zea mays

Mythimna separata is a destructive polyphagous insect of almost 33 plant species including maize and wheat. To evaluate the pathogenecity of entomopathogenic fungi, Beauveria bassiana and Isaria fumosorosea, a bioassay was conducted under laboratory conditions in which fungi were applied at different dose rates on different larval instars of M separata. The results showed a dose and time dependent response on the mortality. Both fungi were found to be effective at all concentrations, but the uppermost concentration (6x10(8) spores/ml) provided maximum control within short period of time (P<0.001). B. bassiana showed its effectiveness after 4th day of application, while the 50% mortality of test population treated by I. fumosorosea was recorded between 5-6 days of treatment. Results are evident that entomopathogenic fungi have potential to be used for the management of M separata.

• 出版日期2013-12