Effect of Egg Age, Storage Temperature, and Storage Duration on Egg Hatch of Diabrotica undecimpunctata howardi (Coleoptera: Chrysomelidae)
Autor: | Jan J. Jackson, W. David Woodson, Albert C. Lew |
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Rok vydání: | 1995 |
Předmět: | |
Zdroj: | Annals of the Entomological Society of America. 88:781-784 |
ISSN: | 1938-2901 0013-8746 |
Popis: | The effect of egg age and storage temperature and duration on the percentage of hatch and time to 50% hatch for eggs of Diabrotica undecimpunctata howardi Barber, southern corn rootworm, was determined by exposing 1-, 3-, and 5-d-old eggs at 6 temperatures from 0 to 15°C for durations of 1-6 wk. Egg age, storage temperature, storage duration, and their interactions had a significant influence on percentage of egg hatch and time to 50% hatch. Regression models were developed to allow prediction of percentage of hatch and time to 50% hatch. Eighteen treatment combinations maintained egg viability >94%. Percentage of hatch and time to 50% hatch were optimized with 1-d-old eggs incubated at 15°C for 3 wk. |
Databáze: | OpenAIRE |
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