A Photographic Technique for Estimating Egg Density of the White Pine Weevil, Pissodes strobi (Peck)

摘要

The report compares a photographic technique with visual and dissection techniques for estimating egg density of the white pine weevil, Pissodes strobi. The relatively high correlations (.67 and .79) between counts from photographs and those obtained by dissection indicate that the nondestructive photographic technique could be a useful tool for determining egg density.