DIAPAUSE TERMINATION IN OVERWINTERING PUPAE OF RHEUMAPTERA HASTATA (LEPIDOPTERA: GEOMETRIDAE) IN INTERIOR ALASKA
- 1 August 1977
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 109 (8) , 1149-1152
- https://doi.org/10.4039/ent1091149-8
Abstract
A method was developed to terminate pupal diapause in Rheumaptera hastata through experimentation using controlled abiotic factors. Male and female pupae exposed to 0 °C at 75–100% moisture content for 90–120 days terminated diapause within 8–19 days following treatment. This method reduces diapause by 4 months compared with natural conditions. Light had a minimum effect on diapause termination; therefore, pupae should be exposed to constant darkness during the treatment period, followed by exposure to a 20L:4D photoperiod to obtain a high percentage of adult emergence.This publication has 5 references indexed in Scilit:
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