Jj. Jackson et al., EFFECT OF EGG AGE, STORAGE-TEMPERATURE, AND STORAGE DURATION OIL EGG HATCH OF DIABROTICA-UNDECIMPUNCTATA-HOWARDI (COLEOPTERA, CHRYSOMELIDAE), Annals of the Entomological Society of America, 88(6), 1995, pp. 781-784
The effect of egg age and storage temperature and duration on the perc
entage of hatch and time to 50% hatch for eggs of Diabrotica undecimpu
nctata howardi Barber, southern corn rootworm, was determined by expos
ing 1-, 3-, and 5-d-old eggs at 6 temperatures from 0 to 15 degrees C
for durations of 1-6 wk. Egg age, storage temperature, storage duratio
n, 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. Eightee
n treatment combinations maintained egg viability > 94%. Percentage of
hatch and time to 50% hatch were optimized with 1-d-old eggs incubate
d at 15 degrees C for 3 wk.