Temporal and Spatial Changes in Abundance of the Asparagus Miner, Ophiomyia simplex (Loew) (Diptera: Agromyzidae), in Michigan

Abstract
The asparagus miner, Ophiomyia simplex (Loew), was studied in commercial and research plantings of asparagus from 1974 to 1975. It had two generations per year, with second-generation pupae overwintering in the stems. Second-generation larvae pupated further below the soil surface than first-generation larvae. The distribution and abundance of both larvae and pupae were analyzed and compared throughout the season. The relationship between sample mean and variance was used to determine appropriate sample sizes to estimate the mean with specific coefficients of variability.

This publication has 3 references indexed in Scilit: