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

Creator:: Russell, Malcolm Howard
Resource Type:: Masters Thesis
Full Text:: Sampling and estimating populations of insect seed

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Creator:: Talkington, Michael Lee
Abstract:: Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...
Resource Type:: Masters Thesis
Full Text:: Effects of Til Effects of Til Effects of Til Effects of Til Yield lage on Mint Root Borer and Insects 4

Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Creator:: Armer, Christine Andrea
Abstract:: The Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say), is the most devastating foliage-feeding pest of potatoes in the United States. Potential biological control agents include the nematodes Heterorhabditis marelatus Liu & Berry and Steinernema riobrave Cabanillas, Poinar & Raulston, which provided nearly 100% CPB control in previous laboratory trials. In...
Resource Type:: Dissertation
Full Text:: larval instars as well as the adults feed on foliage, and a single insect eats at least 100 cm2 of

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

Creator:: Takeyasu, Joyce
Resource Type:: Masters Thesis
Full Text:: bringing the insect in contact with the insecticide. Because of its low water solubility (Brust, 1966

Resistance in snap beans, Phaseolus vulgaris L., to adult western spotted cucumber beetle, Diabrotica u. indecimpunctata Mann

Creator:: Eltoum, Elameen M. A.
Abstract:: Studies to evaluate resistance in snap beans, Phaseolus vulgaris L. to adult western spotted cucumber beetles, Diabrotica u. undecimpunctata Mann. were conducted in greenhouse cages, field cages, field plots, and in temperature controlled cabinet in the laboratory. Results showed that there were differences in susceptibility to adult feeding injury between...
Resource Type:: Masters Thesis
Full Text:: on the Foliage Damage to Green Pods Individual Field Cage Evaluation Effect of Beetle Injury on

Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Creator:: Weinzierl, Richard Alan
Resource Type:: Dissertation
Full Text:: insects and habitats. Ruesink and Kogan (1982) reviewed common sampling methods used in insect pest

Big-eyed bugs as predators of the green peach aphid

Creator:: Puls, Karl A.
Resource Type:: Masters Thesis
Full Text:: the production of 1st instar aphids by alatae on potato. Foliage dwelling arthropods, including G

Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

Creator:: Morris, Mark A.
Abstract:: Sampling techniques were evaluated to quantify immature mint flea beetle (MFB), Longitrsus waterhousei Kutschera (Coleoptera: Chrysomelidae), on peppermint (Mentha piperita L.), in central Oregon. During the study period, 1985-1988, soil samples of 350 cm³ were effective for collecting immature MFB. Sifting soil samples through screens was effective for estimating post-feeding...
Resource Type:: Masters Thesis
Full Text:: ), Longitarsus waterhousei Kutschera (Coleoptera: Chrysomelidae), is considered to be one of the key insect pests

Influence of the secondary metabolites of Mentha piperita L. on Tetranychus urticae Koch

Creator:: Larson, Katherine Cole
Resource Type:: Masters Thesis
Full Text:: ). Flavones have been shown to be important as both insect feeding attractants and repellents (Schoonhoven

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:: Cacka, Joseph Francis
Resource Type:: Masters Thesis
Full Text:: is an omnivorous insect (Wilcox et al. 1934) that causes considerable damage to strawberry

ScholarsArchive@OSU

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

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Entomopathogenic nematodes for biological control of the Colorado potato beetle, Leptinotarsa decemlineata (Say)

Control of mint root borer, Fumibotys fumalis, with the entomopathogenic nematode, Steinernema carpocapsae

Resistance in snap beans, Phaseolus vulgaris L., to adult western spotted cucumber beetle, Diabrotica u. indecimpunctata Mann

Sampling methods and injury thresholds for western spotted cucumber beetle in snap beans

Big-eyed bugs as predators of the green peach aphid

Sampling methods, biology and management of the mint flea beetle in central Oregon peppermint

Influence of the secondary metabolites of Mentha piperita L. on Tetranychus urticae Koch

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

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