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Filtering by: Creator Western Orchard Pest and Disease Management Conference Committee Member Anderson, N. H. Decade 1980-1989

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:

pest east of the Cascade Mountains and in south-western Oregon, where hot, dry weather is conducive to