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Filtering by: Committee Member McDougal, W. G. Advisor Berry, Ralph E.

Mechanisms of resistance in broccoli, Brassica oleracea italica to the garden symphylan, Scutigerella immaculata (Newport)

Creator:

Simagrai, Montri

Abstract:

Studies were conducted on the mechanisms contributing to resistance in broccoli, Brassica oleracea italica, to the garden symphylan, Scutigerella immaculata (Newport). Differences in resistance to symphylan injury were shown between five selected broccoli cultivars. The hybrid cultivars, Crusader, Green Duke and Bravo, showed a higher level of resistance to symphylans...

Resource Type:

Masters Thesis

Full Text:

appreciation is expressed to Dr. K. G. Swenson and Dr. W. W. Chilcote who served on the graduate committee
Influence of the secondary metabolites of Mentha piperita L. on Tetranychus urticae Koch

Creator:

Larson, Katherine Cole

Resource Type:

Masters Thesis

Full Text:

Entosl ogy Redacted for Privacy Dean of G ate Sdhoo Date thesis is presented 12 August 1982 Typed by
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

Full Text:

, G. Fisher, E. Shields and B. Simko, asked important questions, furnished answers and collected data