Cold activity and tolerance of the entomopathogenic fungus Tolypocladium spp. to UV-B irradiation and heat

► Tolypocladium spp. were evaluated for cold activity, heat, and UV-B tolerances. ► Tolypocladium cylindrosporum were the most cold active species. ► Tolypocladium inflatum and Tolypocladium geodes were less active to cold. ► Metarhizium robertsii did not germinate at 8 ± 1 °C. ► T. cylindrosporum ARSEF 5558 was more resistant to UV-B radiation and heat.