Virulence and reproductive potential of Indian entomopathogenic nematodes against the larvae of the rice meal moth

IF 1 Q3 PLANT SCIENCES

Archives of Phytopathology and Plant Protection Pub Date : 2022-11-26 DOI:10.1080/03235408.2022.2161293

T. Askary, A. Bhat, R. A. Machado, M. Ahmad, M. Abd-Elgawad, A. Khan, M. Gani

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引用次数: 3

Abstract

Abstract Entomopathogenic nematodes (EPNs) are key biocontrol agents against various insect pests such as pests of stored foods, when other control measures, such as pesticides are not appropriate. We evaluated the virulence and reproductive potential of four EPN isolates: Heterorhabditis bacteriophora MK263023, H. bacteriophora MK256358, H. bacteriophora MK256378 and S. cholashanense MH128155 against the larvae of the rice meal moth. These isolates were highly effective against the 4th instar larvae of the insect. All the isolates killed 100% of the insects within 24–48 h using 200 infective juveniles (IJs)/larvae. Similar mortality rates were observed at lower nematode concentrations, but more time was required. Heterorhabditis bacteriophora MK256358 and S. cholashanense MH128155 showed the best performance in killing and reproductive potential. Our results open new avenues for the potential of indigenous EPNs to effectively control this insect and set the basis for establishing safe strategy in its management programs in India.

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印度昆虫病原线虫对饭蛾幼虫的毒力和繁殖潜力

摘要当其他控制措施（如杀虫剂）不合适时，昆虫病原线虫（EPNs）是对抗各种害虫（如储存食品中的害虫）的关键生物控制剂。我们评估了四个EPN分离株：异横纹肌炎噬菌体MK263023、H.噬菌体MK256358、H.细菌MK256378和S.chorashanense MH128155对米粉蛾幼虫的毒力和繁殖潜力。这些分离物对该昆虫的4龄幼虫具有很高的抗性。所有分离株在24-48小时内杀死了100%的昆虫 h，使用200只感染性幼体（IJs）/幼虫。在较低的线虫浓度下观察到类似的死亡率，但需要更多的时间。细胞菌MK256358和细胞菌MH128155在杀伤和繁殖潜力方面表现最好。我们的研究结果为本土EPN有效控制这种昆虫的潜力开辟了新的途径，并为在印度的管理计划中制定安全战略奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Archives of Phytopathology and Plant Protection Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

2.20

自引率

0.00%

发文量

100

期刊介绍： Archives of Phytopathology and Plant Protection publishes original papers and reviews covering all scientific aspects of modern plant protection. Subjects include phytopathological virology, bacteriology, mycology, herbal studies and applied nematology and entomology as well as strategies and tactics of protecting crop plants and stocks of crop products against diseases. The journal provides a permanent forum for discussion of questions relating to the influence of plant protection measures on soil, water and air quality and on the fauna and flora, as well as to their interdependence in ecosystems of cultivated and neighbouring areas.