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Filtering by: Committee Member Li, H. W. Academic Affiliation Entomology Advisor Berry, Ralph E.

Sampling and estimating populations of insect seed-predators in coniferous forests

Creator:

Russell, Malcolm Howard

Resource Type:

Masters Thesis

Full Text:

Forestry, Oregon State University. Dr. W. P. Nagel, formerly Associate Professor of Entomology, was my
Twospotted spider mite, Tetranychus urticae Kock, in Oregon peppermint, Mentha piperita L. : sampling, population dynamics and economic injury

Creator:

Hollingsworth, Craig Stephen

Abstract:

A pest management program for Tetranychus urticae Koch in Oregon peppermint was developed based on studies of sampling, plant phenology, population dynamics and damage thresholds. A sample size of 45 leaves provided a confidence level of 90% and a confidence interval of 50%. Estimation of the sample mean was based...

Resource Type:

Dissertation