Life Sciences Commons^™

Factors Affecting Feeding Injury To Grasses By Adult Billbugs (Coleoptera: Curculionidae), Dale C. Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Factors associated with feeding injury to grass plants by two species of adult billbugs, Sphenophorus gentilis and S. parvulus, were evaluated. Early season tests utilized adult bluegrass billbugs while later studies involved wildrye billbugs. Types of feeding injury were determined and preferred feeding locations on host plants were identified for each billbug species. Greenhouse and field studies compared different species of grasses, individual plants within a species, and plants from different locations, for billbug susceptibility. The effect of grass plant age and stem size were also tested using bluegrass billbugs.

Using analysis of variance and multiple comparison tests, significant …

Environmental Factors Affecting Dispersal Behavior In Nasonia Vitripennis (Hym, Pteromalidae), Robert Perry Steele

Dissertations, Theses, and Masters Projects

No abstract provided.

Changes In The Growth And Food Utilization Of The Cabbage Looper Trichoplusia Ni (Lepidoptera: Noctuidae) After Consumption Of An Artificial Diet Incorporating The Non-Protein Amino Acid L-Canavanine, Bradley F. Binder

Theses Digitization Project

No abstract provided.

Social Factors Affecting Male Reproductive Success In Nasonia Vitripennis, Harold Allen Orr

Dissertations, Theses, and Masters Projects

No abstract provided.

A Survey Of House Dust Mites In The Williamsburg Area, Mark Timothy Lassiter

Dissertations, Theses, and Masters Projects

No abstract provided.

Some Factors Affecting Male Back Space Availability In The Water Bug Belostoma Flumineum Say, Amanda M. Vandenburgh

Masters Theses

Various factors affecting the availability of male back space in the giant water bug, Belostoma flumineum Say, are described herein and interpreted in a manner consistent with natural selection theory. Newly emerged males are observed to breed and accept eggs sooner than newly emerged females develop an egg clutch: furthermore, newly emerged males were shown to contain motile sperm on the day of adult emergence. Newly emerged females did not contain any mature eggs until approximately six days old. It was also found that newly emerged females manufacture eggs at a linear rate of 4.8 eggs per day. Egg length …

The Effect Of Kinship On Reproductive Success Of Male Nasonia Vitripennis (Hymenoptera: Pteromalidae), Douglas Stuart Bryant

Dissertations, Theses, and Masters Projects

No abstract provided.