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Full-Text Articles in Life Sciences

Potential For Biological Control Of Dendroctonus And Ips Bark Beetles, David Kulhavy, Mitchel C. Miller Jan 1989

Potential For Biological Control Of Dendroctonus And Ips Bark Beetles, David Kulhavy, Mitchel C. Miller

Faculty Publications

"The evolution of olfactory communication in bade beetles brought with it the parallel or coevolution of kairomonal systems in the natural enemy complexes. Entomophagous insects developed olfactory receptors and behavioral patterns responsive to insect and host-produced volatiles in the ecosystems of bark beetles. The phenomenon has both positive and negative implications for efforts to employ natural enemies in pest management."


Ipps Spp. Natural Enemy Relationships In The Gulf Coastal States, David Kulhavy, R. A. Goyer, M A. Riley Jan 1989

Ipps Spp. Natural Enemy Relationships In The Gulf Coastal States, David Kulhavy, R. A. Goyer, M A. Riley

Faculty Publications

No abstract provided.


Potential For Biological Control Of Dendroctonus And Ips Bark Beetles, David Kulhavy, Mitchel C. Miller Jan 1989

Potential For Biological Control Of Dendroctonus And Ips Bark Beetles, David Kulhavy, Mitchel C. Miller

eBooks

Table of Contents


G89-904 Corn Insects - Quick Reference, J. F. Witkowski, Frederick P. Baxendale Jan 1989

G89-904 Corn Insects - Quick Reference, J. F. Witkowski, Frederick P. Baxendale

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide provides abbreviated information on all the economically important corn insect pests found in Nebraska. It provides a brief description, damage symptoms, incidence, sampling scheme, economic thresholds, and available references for these insects.


G89-954 A Guide For Managing Poultry Insects (Revised April 1996), John B. Campbell Jan 1989

G89-954 A Guide For Managing Poultry Insects (Revised April 1996), John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

Major insect pests of Nebraska's poultry population are identified and treatment recommendations are given.

For many years poultry production in Nebraska has consisted primarily of large operations of layer hens. In recent years, however, broiler production has increased in southeast Nebraska. There are also some large turkey production units. Extreme competitiveness in the poultry industry has resulted in narrow cost-profit margins. Poultry operations cannot allow ectoparasitic and nuisance insects to interfere with production, nor can they afford high pest control expenses. For production to be profitable, poultry production must be managed to reduce the incidence of insect pests.

Poultry are …


Life History Of A Ponderosa Pine Coneworm, Dioryctria Auranticella (Lepidoptera: Pyralidae), Judith E. Pasek, Mary Ellen Dix Dec 1988

Life History Of A Ponderosa Pine Coneworm, Dioryctria Auranticella (Lepidoptera: Pyralidae), Judith E. Pasek, Mary Ellen Dix

Judith E Pasek

Dioryctria auranticella (Grote), a coneworm that infests ponderosa pine, Pinus ponderosa Douglas ex. P. Lawson and Lawson, and Austrian pine, P. nigra Arnold, in southeastern Nebraska is univoltine. Head capsule measurements indicate five instars. First instars apparently overwinter in hibernaculae. Second and third instars feed in male and female pine flowers during early May. Fourth and fifth instars tunnel in second-year cones for about 2-3 wk between mid-May and mid-June and often require two cones to complete development. Larvae pupate within cones during June, and adults are active from mid-June to late July. at 26C, eggs hatch in 6-9 d. …