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Full-Text Articles in Life Sciences

Khapra Beetle (Trogoderma Granarium Everts): Pest-Initiated Pest Risk Assessment, Judith Pasek Aug 1998

Khapra Beetle (Trogoderma Granarium Everts): Pest-Initiated Pest Risk Assessment, Judith Pasek

Judith E Pasek

This pest risk assessment was conducted by the United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine (USDA, APHIS, PPQ). It was initiated in response to a need identified during an agency Program Review for khapra beetle (Trogoderma granarium Everts; Coleoptera: Dermestidae), which was requested during the November 1997 meeting of the Plant Protection and Quarantine Strategy Team (PPQST) and the National Plant Board Council. This assessment addresses the likelihood of khapra beetle becoming established in the United States, the economic consequences of khapra beetle infestation in the US, and available information regarding pathways, …


Seasonal Patterns Of Nitrogen Fixation In Termites, A. D. Curtis, D. A. Waller Jan 1998

Seasonal Patterns Of Nitrogen Fixation In Termites, A. D. Curtis, D. A. Waller

Biological Sciences Faculty Publications

Summary

1. Termite nitrogenase activity was highest in autumn and spring (≈ 3 µg N2 fixed termite fresh mass (g)–1 day–1) and lowest in winter and summer (≈ 0·8 µg N2 fixed termite fresh mass (g)–1 day–1).

2. The nitrogenase activity of worker termites was significantly higher than all other castes (1·58 ± 0·27 µg N2 fixed termite fresh mass (g)–1 day–1).

3. Worker termites constituted the largest proportion of all the castes throughout the study period (≈ 90%).

4. The localized input of fixed nitrogen by termites …


1997 Wild Blueberry Progress Reports, Darrell W. Donahue, Alfred A. Bushway, Mary Ellen Camire, Keith Moore, Rodney J. Bushway, Brian Perkins, Frank A. Drummond, Connie S. Stubbs, Judith A. Collins, Paul Cappiello, John M. Smagula, Scott Dunham, Walter Litten, David E. Yarborough, Timothy M. Hess, John Jemison Jan 1998

1997 Wild Blueberry Progress Reports, Darrell W. Donahue, Alfred A. Bushway, Mary Ellen Camire, Keith Moore, Rodney J. Bushway, Brian Perkins, Frank A. Drummond, Connie S. Stubbs, Judith A. Collins, Paul Cappiello, John M. Smagula, Scott Dunham, Walter Litten, David E. Yarborough, Timothy M. Hess, John Jemison

Wild Blueberry Research Reports

The 1997 edition of the Wild Blueberry Progress Reports was prepared for the Wild Blueberry Commission of Maine and the Wild Blueberry Advisory Committee by researchers at the University of Maine, Orono. Projects in this report include:

1. Investigation of processing damage of IQF blueberries

2. Use of sorter rejects and wild blueberry puree to prevent warmed over flavor in processed beef patties

3. Factors affecting the quality of IQF wild blueberries

4. Determination of pesticide residue levels in fresh and processed wild blueberries

5. Pollination ecology of wild blueberries in Maine

6. Control tactics for wild blueberry pest insects …


G98-1359 Western Bean Cutworm In Corn And Dry Beans (Revised April 2004), Ronald C. Seymour, Gary L. Hein, Robert J. Wright, John B. Campbell Jan 1998

G98-1359 Western Bean Cutworm In Corn And Dry Beans (Revised April 2004), Ronald C. Seymour, Gary L. Hein, Robert J. Wright, John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

Western bean cutworm (WBC) can be a severe pest in corn and dry beans. Larval feeding damages both crops through reduced yield and quality. In corn, direct feeding losses may be compounded by fungal and mold infections associated with larval waste products. In beans, damaged or 'worm-chewed' beans are a significant quality factor for both processed and dry bagged beans. Western bean cutworm infestations occur every year in western Nebraska. In some years, this pest is found in high numbers throughout the state.

This NebGuide addresses the life cycle, scouting and treatment of the western bean cutworm in corn and …


Ec98-151 Amaranth: Production Manual For The Central United States, Jane Sooby, David D. Baltensperger, Robert Myers, David Brenner, Richard Wilson, Charles Block Jan 1998

Ec98-151 Amaranth: Production Manual For The Central United States, Jane Sooby, David D. Baltensperger, Robert Myers, David Brenner, Richard Wilson, Charles Block

University of Nebraska-Lincoln Extension: Historical Materials

Amaranth is a small-seeded grain crop with a dramatic history. Once a staple in the diet of the Aztec Indians, today it is grown throughout the world. In the United States much of the production is small-scale and organic, grown mainly for the natural and health food markets. There also has been steady use of the crop for breakfast cereals, snack foods, and mass-produced multigrain bread products. Amaranth is a broadleaf plant well-adapted to a range of arid and humid environments. As a crop it fits into many dryland rotations, performing well following wheat, proso millet, or other grain crops. …


G98-1347 Protecting Bees When Using Insecticides, Marion D. Ellis, Frederick P. Baxendale, David L. Keith Jan 1998

G98-1347 Protecting Bees When Using Insecticides, Marion D. Ellis, Frederick P. Baxendale, David L. Keith

University of Nebraska-Lincoln Extension: Historical Materials

Bees are valuable pollinators and need to be protected when pesticides are applied, especially when plants are in bloom. Learn how to best protect them with tips for specific crops, chemicals, and application times.

Bees are valuable pollinators of 95 crops grown in the United States. Bee-pollinated crops have a farm value of approximately $10 billion. Bees are as vital as soil fertility, irrigation, and pest control in the production of crops requiring bee pollination. Bees also are valuable pollinators of many wild plants that provide food and cover to wildlife, contribute to soil fertility and erosion control, and add …