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Filtering by: Creator Wilkinson, Ralph Advisor Berry, Ralph E.

Toxicity of peppermint monoterpenes to the variegated cutworm, Peridroma saucia Hübner

Creator:

Harwood, Steven Hunter

Abstract:

The toxicity of menthol, menthone, pulegone, limonene, and a-pinene, five monoterpenes found in peppermint (Mentha piperita L.), to the variegated cutworm (Peridroma saucia Hiibner) was characterized by in vivo and in vitro methods. Pulegone and menthone caused slower growth over six days when incorporated into an artificial diet and fed...

Resource Type:

Masters Thesis

Full Text:

-processed by the author ACKNOWLEDGEMENTS I wish to thank my major professor, Dr. Ralph Berry, for his
Ecology of the predatory mite, Pergamasus quisquiliarum Canestrini (Acari: Mesostigmata)

Creator:

Groth, Eric M.

Abstract:

Pergamasus quisquiliarum Canestini is a polyphagous predatory mite that has been shown to feed on the economically important arthropod, Scutigerella immaculata Newport (Symphyla: Scutigerellidae), Collembola, Diptera larvae, Enchytraeid worms, and miscellaneous other soil organisms. This study examined the feeding behavior of P. quisquiliarum, the effects of cover cropping and tillage...

Resource Type:

Masters Thesis

Full Text:

quisquiliarum Canestrini (Acari: Mesostigmata). Abstract approved: / Ralph E. Be Pergamasus quisquiliarum
Sampling and estimating populations of insect seed-predators in coniferous forests

Creator:

Russell, Malcolm Howard

Resource Type:

Masters Thesis

Full Text:

OF INSECT SEED - PREDATORS IN CONIFEROUS FORESTS Abstract approved: Redacted for Privacy f Ralph E
Big-eyed bugs as predators of the green peach aphid

Creator:

Puls, Karl A.

Resource Type:

Masters Thesis

Full Text:

. 1984), with mortality reaching 100% in 5 of 7 organophosphate compounds tested. Wilkinson et al