Susceptibility of Immature Trichogramma pretiosum1 to Freezing and Subfreezing Temperatures 23
- 1 October 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Environmental Entomology
- Vol. 9 (5) , 697-700
- https://doi.org/10.1093/ee/9.5.697
Abstract
Vanous ages of immature Trichogramma pretiosum Riley which were reared at 26.7°C were exposed to 0°, −5°, −10°, −15°, and −20°C. Mortality of 2-, 3-, and 4-day-old immatures was generally similar at all temperatures. The one day olds were more tolerant than the other age groups of −5° and −10°C. The 6 and 8 day olds were more susceptible to −10°, −15°, and −20°C; however, the 8 and especially the 6 day olds were more tolerant of 0°C. A predictive model was developed for mortality of immature T. pretiosum as a function of exposure time and temperature.This publication has 3 references indexed in Scilit:
- Overwintering of Trichogramma pretiosum1 in Central Texas 23Environmental Entomology, 1980
- Prediction Models for Mortality of Immature Stable Flies 2 Caused by Cold Temperatures 2Environmental Entomology, 1978
- The Mode of Overwintering of Trichogramma nubilale Ertle and Davis 12Environmental Entomology, 1977