Survivability of Nosema locustae (microsporida : Nosematidae) spores stored at different temperatures and exposed to weather conditions

Publication Type

Journal Article

Journal Name

Journal of Advanced Zoology

Publication Date

12-1-2000

Abstract

The survivability of Nosema locustae (Canning) spores, a microsporidian pathogen of locusts and grasshoppers was verified when stored at different temperatures and exposed to weather conditions in the field. The survivability of spores stored in water was 15.1% under sunlight, 27.6% at 40°C under the shade and 33.8% inside at room temperature after 12 days, whereas at 25,10 and -10°C, it was 80.5, 97.0 and 99.4%, respectively. In the field during monsoon, the survivability of spores sprayed on the plants was 90% after 60 h at temperature between 25 and 31.1°C and relative humidity ranging from 70 to 95%, while in summer, it was 56.4% at temperature between 42.6 and 43.8°C and relative humidity from 18 to 21%. The results suggest that direct sunlight and high temperatures play major role in inactivation of the spores during storage and in field conditions.

This document is currently not available here.

Share

COinS