Screening and virulence of Iranian isolates of Beauveria bassiana for potential management of Sunn Pest (Eurygaster integriceps Puton) in relation to cold activity

Authors

  • Farzaneh Parsi Sunn Pest Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
  • Samira Peighami Ashnaei Plant Disease Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
  • Shahram Shahroukhi Khaneghah Sunn Pest Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran

DOI:

https://doi.org/10.6092/issn.2531-7342/15270

Keywords:

Beauveria bassiana, cold activity, sunn pest, Eurygaster integriceps, Iran

Abstract

Environmental abiotic factors, such as low temperatures, restrict the application of entomopathogenic fungi well-known biological control agents against agricultural pests. Among 60 Iranian isolates collected in Central Iran that were exposed to cold stress, four isolates were identified as potential candidates for further investigation. One hundred percent of the conidia of these four isolates germinated and subsequently produced conidia. Their virulence against Sunn Pest (Eurygaster integriceps Puton) varied between isolates. After applying cold stress (4 °C), Vesh 1-8 isolate with sporulation of 6.5 × 10 7 conidia mL-1, 50% mortality and LT in 3/4 days was the most cold-tolerant isolate. Cold-active germination and growth of the biocontrol fungal isolates are important to industrialize the products with a high potential against target pests in different environmental conditions.

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Published

2023-02-08

How to Cite

Parsi, F., Peighami Ashnaei, S., & Shahroukhi Khaneghah, S. (2023). Screening and virulence of Iranian isolates of Beauveria bassiana for potential management of Sunn Pest (Eurygaster integriceps Puton) in relation to cold activity. Italian Journal of Mycology, 52(1), 17–21. https://doi.org/10.6092/issn.2531-7342/15270

Issue

Vol. 52 (2023)

Section

Articles

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Copyright (c) 2023 Farzaneh Parsi, Samira Peighami Ashnaei, Shahram Shahroukhi Khaneghah

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This work is licensed under a Creative Commons Attribution 4.0 International License.