Plant Sciences Commons^™

Mp759: Grower Survey Of Organic Pest Management Practices For Wild Blueberries In Maine With Case Studies, Andrew C. Files, David Yarborough, Frank Drummond

Miscellaneous Publications

This report describes the results of a survey of all known organic blueberry growers in Maine conducted in December 2006. The survey included questions ranging from acreage owned and/or managed to market outlets to pruning techniques to educa­tion level of grower to methods of learning new information and was part of a larger, interdisciplinary project addressing organic pest-management strategies for lowbush blueber­ries.

Pb1033 Controlling The Alfalfa Weevil In Tennessee, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

The alfalfa weevil is present in every county in Tennessee where alfalfa is grown. Producers should be prepared to control this extremely destructive insect whenever necessary if they expect to continue producing this valuable hay crop.

Sp290-N The Greenbug In Grain Sorghum, The University Of Tennessee Agricultural Extension

Field & Commercial Crops

Greenbugs are small (1.6 mm long), soft-bodied insects that are oval in shape. Greenbugs usually feed in colonies by sucking sap from leaves. Feeding may cause mottling and discoloration of the plant. Heavily infested leaves turn red or yellow, shrivel and die. Damaging levels of greenbugs can result in the destruction of entire grain sorghum fields.

Crop Updates 2008 - Lupins, Pulses And Oilseeds, Mark Seymour, Robert Johnson, Ian Pritchard, Raj Malik, Wayne Parker, Martin Harries, Bob French, Jo Walker, Laurie Maiolo, Leigh Smith, Alan Harris, Rod Hunter, Tanveer Khan, Jenny Garlinge, Pooran Gaur, Kambot Siddique, Heather Clarke, Neil Turner, William Macleod, Stuart Morgan, Wendy Vance, Philip Chambers, Chris Veitch, Tony Leonforte, Rodger Beermier, Moin Salam, Jenny Davidson, Jean Galloway, Pip Payne, Tess Humphries, Art Diggle, Harmohinder Dhammu, Michael Materne, Kerry Regan, Mohammad Amjad, Andy Sutherland, Pat Fels, Glen Riethmuller, Wallace Cowling, Milton Saunders, Eliot Jones, Chris Newman, John Duff, David Sermon, Svetlana Micic, Anthony Dore, Geoff Strickland, Blakely Paynter, Vince Lambert, Chris Roberts

Crop Updates

This session covers twenty six papers from different authors:

Regional Roundup

1. SOUTH EAST AGRICULTURAL REGION, Mark Seymour Department of Agriculture and Food, and Robert Johnson CBH Group, Esperance

2. CENTRAL AGRICULTURAL REGION, Ian Pritchard, Department of Agriculture and Food

3. GREAT SOUTHERN AND LAKES REGION, Raj Malik, Department of Agriculture and Food

4. NORTHERN AGRICULTURAL REGION, Wayne Parker and Martin Harries, Department of Agriculture and Food

LUPINS

5. Cropping lupins in wide rows in Western Australia, Martin Harries and Bob French, Department of Agriculture and Food

6. The effect of sowing time and radish density …

Crop Updates 2008 - Farming Systems, John De Majnik, Paul Meibusch, Vince Logan, Louise Barton, Wahid Biswas, Daniel Carter, Nicolyn Short, Jodie Bowling, Glen Riethmuller, James Fisher, Moin Salam, Stephen Davies, Jim Dixon, Dennis Van Gool, Alison Slade, Bob Gilkes, Megan Abrahams, Caroline Peek, Daniel Gardiner, Kari-Lee Falconer, David Hall, Jeromy Lemon, Harvey Jones, Yvette Oliver, Tania Butler, Michael Robertson, Stephen Carr, Chris Gazey, David York, Joel Andrews, Michael Simeoni, G. Peter Mangano, Svetlana Micic, Dave Gartner, Adam Clune, Matthew Morell, Adam Umbers, Angelo Loi, Brad Nutt, Clinton Revell, Geoff Kew, Vivien Vanstone, Ali Bhatti, Ming Pei You, Imma Farre, Bill Bowden, Henry Smolinski, Jane Speijers, John Bruce, David Mccarthy, Gary Lang, David Rees, Rob Grima, John Young, Ross Kingwell, Chris Oldham, Derk Bakker, Ian Foster, David Beard, Wen Chen, Richard Bell, Ross Brennan, Art Diggle, Reg Lunt, Qifu Ma, Zed Rengel, Tim Hilder, Dusty Severtson, Shahajahan Miyan, Sam Clune, Barb Sage, Tenielle Martin, Chris Newman, Neal Dalgliesh, Caroline Peak, Andrew Blake, Megan Ryan, Richard Bennett, Tim Colmer, Daniel Real, Jiyan Pang, Lori Kroiss, Dion Nicol, Tammy Edmonds-Tibbett, Ron Mctaggart, Sean Kelly, Helen Hunter

Crop Updates

This session covers thirty nine papers from different authors:

PLENARY

1. Developments in grain end use, Dr John de Majnik, New Grain Products, GRDC, Mr Paul Meibusch, New Farm Products and Services, GRDC, Mr Vince Logan, New Products Executive Manager, GRDC

PRESENTATIONS

2. Global warming potential of wheat production in Western Australia: A life cycle assessment, Louise Barton1, Wahid Biswas2 and Daniel Carter3, 1School of Earth & Geographical Sciences, The University of Western Australia, 2Centre of Excellence in Cleaner Production, Division of Science and Engineering, Curtin University of Technology, 3Department of Agriculture and …

Sp341-A-Protect Farm-Stored Grain, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

Several insect species attack stored grain, resulting in both direct and indirect losses. Direct losses from insect feeding result in reduced grain weight, loss of nutrients and decreased germination. Indirectly, the presence of insects causes a deterioration and contamination of grain. This results in a poorer grade of grain and lower market value.

Seed Predators Of Canada Milk-Vetch And Their Parasitoids, Arvid Boe, Paul J. Johnson

Native Plant Focused Publications

Canada milk-vetch (Astragalus canadensis L.), North America’s most widespread species of Astragalus, is important for herbivores and granivores in natural ecosystems but suffers heavy seed losses to bruchids and curculionids. Our objectives were: (1) compile a species inventory and describe life histories of insects associated with seed production in Canada milk-vetch, and (2) determine frequencies of pod predation and primary parasitism in Canada milk-vetch. The seed predators were Acanthoscelides perforatus (Horn) and Tychius liljebladi Blatchley. Frequency of pod predation varied between two plant populations (46 and 70%) and between A. perforatus (37 %) and T. liljebladi (21 %). The primary …

Nectar Secondary Compounds Affect Self-Pollen Transfer: Implications For Female And Male Reproduction, Rebecca E. Irwin, Lynn Adler

Lynn Adler

Pollen movement within and among plants affects inbreeding, plant fitness, and the spatial scale of genetic differentiation. Although a number of studies have assessed how plant and floral traits influence pollen movement via changes in pollinator behavior, few have explored how nectar chemical composition affects pollen transfer. As many as 55% of plants produce secondary compounds in their nectar, which is surprising given that nectar is typically thought to attract pollinators. We tested the hypothesis that nectar with secondary compounds may benefit plants by encouraging pollinators to leave plants after visiting only a few flowers, thus reducing self-pollen transfer. We …

Lignin Degradation In Wood-Feeding Insects, Scott M. Geib, Timothy R. Filley, Patrick G. Hatcher, Kelli Hoover, John E. Carlson, Maria Del Mar Jimenez-Gasco, Akiko Nakagawa-Izumi, Rachel L. Sleighter, Ming Tien

Chemistry & Biochemistry Faculty Publications

The aromatic polymer lignin protects plants from most forms of microbial attack. Despite the fact that a significant fraction of all lignocellulose degraded passes through arthropod guts, the fate of lignin in these systems is not known. Using tetramethylammonium hydroxide thermochemolysis, we show lignin degradation by two insect species, the Asian longhorned beetle (Anoplophora glabripennis) and the Pacific dampwood termite (Zootermopsis angusticollis). In both the beetle and termite, significant levels of propyl side-chain oxidation (depolymerization) and demethylation of ring methoxyl groups is detected; for the termite, ring hydroxylation is also observed. In addition, culture-independent fungal gut …

Letter From The Dean, Lalit R. Verma

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 9 2008, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Biology Of The Epichloë-Botanophila Interaction: An Intriguing Association Between Fungi And Insects, Thomas L. Bultman, Adrian Leuchtmann

Thomas L. Bultman

Epichloë fungi (Ascomycota: Clavicipitaceae) are endophytes of grasses that can produce epiphytic stromata on the culms of their hosts. The fungal stromata are visited by Botanophila flies for feeding and egg laying. We review research over the past 20 years that has documented the heterothallic mating system of Epichloë, the mutualistic service of spermatization flies provide for the fungus, and host selection by flies. Flies display an active, stereotypical behavior immediately following oviposition by which spermatia are transferred endozoochorously to stromata. After eggs hatch larvae feed on developing perithecia. Several studies have focused on the cost (consumption of ascospores) to …