ABSTRACT UNDER CONSTRUCTION
Handling Organic Fruit
WSU Postharvest Information Center. 1998.
Organic Raspberry Root Rot Control
Dr. Carol Miles, WSU Mt Vernon Research and Extension Center, and Dr. Pete Bristow, WSU Puyalllup, are investigating organic options to control root rot (Phytopthora fragriae var. rubi). This study is focused on organic root rot control, however all raspberry growers will benefit from new disease management options.
Organic and Integrated Fruit Production
website; WSU Wenatchee Tree Fruit Research and Extension Center.
Organic Fruit Production
WSU Organic Fruit Production website at the Tree Fruit Research and Extension Center.
Apple Replant Disease - Alternatives to Fumigation
Dr. Mark Mazzola, USDA-ARS Tree Fruit Research Lab, Wenatchee, WA.
Organic Vineyard Management
WSU Viticulture and Enology Research and Extension. Contains links to articles, publications and posters.
Understory Management in Organic Orchards
Trials examined weed control, soil quality, tree nutrition, and water use. Also monitored for voles, and testing potential for mulch to host nematodes for control of codling moth larvae. David Granatstein, WSU CSANR, Wenatchee.
Peshastin Creek Areawide Organic Project
The Peshastin Creek Project was created as a joint effort between the Peshastin Creek Growers Association and the Pear Entomology Lab of the WSU Tree Fruit Research and Extension Center in Wenatchee. The research lab provides a monitoring service for the growers in the valley, to support their efforts toward increased use of environmentally-friendly pest management. Bluebird Fruit has created a special "Gently Grown" label for the fruit produced by the PCG Association. The project compares insect pest management under conventional, 'soft', and organic management regimes.
Status of Organic Tree Fruit in Washington State
Kirby, E. and D. Granatstein. 2012. EM046E, Washington State University Extension.
2010 Cost Estimates of Establishing and Producing Organic Apples in Washington
Galinato, Suzette P., David Granatstein and Mykel R. Taylor. 2011. 2010 Cost Estimates of Establishing and Producing Organic Apples in Washington. Washington State University Extension Fact Sheet FS041E. Excel workbook (enterprise budgets) available http://extecon.wsu.edu/pages/Enterprise_Budgets. Select "apples" for access to the FS041E workbook.
Potential nitrogen contributions from legumes in Pacific Northwest apple orchards
Mullinix, K. and Granatstein, D. 2011. Intl. J. Fruit Sci. 11:74-87.
Effect of thermal treatments on phytochemicals in conventionally and organically grown berries
Sablani, S. S., Andrews, P. K., Davies, N. M., Walters, T., Saez, H., Syamaladevi, R. M., and Mohekar, P. R. 2010. Journal of the Science of Food and Agriculture 90: 769-778
Effects of air and freeze drying on phytochemical content of conventional and organic berries
Sablani, S. S., Andrews, P. K., Davies, N. M., Walters, T., Saez, H., Bastarrachea, L. 2011. Drying Technology 29: 205-216
Organic Vineyard Establishment: Trellis and Planting Stock Considerations - June 2010
Article in Sustaining the Pacific Northwest Newsletter
Organic horticulture expands globally
Granatstein, D., Kirby, E., Willer, H. 2010. Chronica Hort. December 2010. 50(4):31-38.
Sustainability trade-offs in organic orchard floor management
Granatstein, D., Wiman, M., Kirby, E., Mullinix, K. 2010. Acta Hort. 873:115-122.
Influence of orchard floor management and compost application timing on N partitioning in organically managed apple trees
TerAvest, D., J.L. Smith, L. Carpenter-Boggs, L. Hoagland, D. Granatstein, and J.P. Reganold. 2010. HortScience. 45:637-642.
Current world status of organic temperate fruits
Granatstein, D., Kirby, E., Willer, H. 2010. Acta Hort. 873:19-36.
Research knowledge and needs for orchard floor management in organic tree fruit systems
Granatstein, D. and E. Sanchez. 2009. Intl. J. Fruit Science 9:257-281.
Orchard floor management effects on nitrogen fertility and soil biological activity in newly established organic apple orchard.
L. Hoagland, L. Carpenter-Boggs, D. Granatstein, M. Mazzola, J. Smith, F. Peryea, and J. Reganold. 2008. Biology and Fertility of Soils online.
Mulching options for Northwest organic and conventional orchards
Granatstein, D. and K. Mullinix. 2008. HortScience 43(1):45-50.
Apple orchard productivity and fruit quality under organic, conventional, and integrated management.
Peck GM, Andrews PK, Reganold JP, Fellman JK. 2006. HortScience 41:99-107.
Organic Control of Cherry Fruit Fly
The active ingredient spinosad, a microbial insecticide, was tested for efficacy against cherry fruit fly. Several formulations were tested. The GF-120 product, a combination of spinosyn and a feeding attractant, proved very effective. A new system of control using point sources versus complete canopy cover was developed. The use of GF-120, an organically approved material, for cherry fruit fly control has become widespread among cherry producers in the region, both conventional and organic. It is very effective, non-toxic to humans, low impact to beneficials, and low cost due to the low volume used and quick application.
Soil and winegrape quality in biodynamically and organically managed vineyards.
J. R. Reeve, L. Carpenter-Boggs, J. P. Reganold, A. L. York, G. McGourty, and L. P. McCloskey. 2005. Amer. J. Enol. Vitic. 56: 367-376.
Proceedings: Third National Organic Tree Fruit Research Symposium
Chelan, WA, June 6–8, 2005.
Using Leguminous Cover Crops as a Nitrogen Source for Organic Grape Production - September 2005
Article in Sustaining the Pacific Northwest Newsletter
Organic Tree Fruit Production Continues to Expand - September 2003
Article in Sustaining the Pacific Northwest Newsletter
Biodynamic Management of Wine Grapes
Study by Jennifer Reeve as part of MS degree, WSU Crops & Soils. Examined the effect of biodynamic preparations on wine grape, soil, and compost quality. Major professor Dr. John Reganold.
Current Trends in Organic Tree Fruit Production
CSANR Technical Report #4
A Cost of Production Analysis of Conventional vs. Integrated vs. Organic apple Production Systems
J. Glover, H. Hinman, J. Reganold, P. Andrews. 2002. , WSU Agr. Res. Center. Publ. XB1041, Pullman, WA
Soil and plant mineral nutrition and fruit quality under organic, conventional, and integrated apple production systems in Washington State, USA.
P.K. Andrews, J.K. Fellman, J.D. Glover, J.P. Reganold. 2001. Acta Hort. 564:291-298.
Sustainability of three apple production systems
Reganold JP, Glover JG, Andrews PK, Hinman HR. 2001. Nature 410:926-930.
Organic Methods of Root Rot Control in Raspberries
WSU Vancouver. 2001.
Trends in Organic Tree Fruit Production in Washington State: 1988-1998
CSANR Technical Report #1
Systematic method for rating soil quality of conventional, organic, and integrated apple orchards in Washington State
J.D. Glover, J.P. Reganold, P.K. Andrews. 2000. Agriculture, Ecosystems, and Environment 80:29-45.
Organic Apple Production in Washington State: an Input-Output Analysis
The objective of this paper is to provide an Input-Output (IO) based economic impact analysis for organic apple production in Washington State.
2nd International Organic Fruit Research Symposium 2012
eOrganic conducted live broadcasts from the the 2nd International Organic Fruit Research Symposium in Leavenworth, Washington on June 19 and 21, 2012. The recorded presentations from this symposium will be of interest to researchers, Extension professionals, growers, consultants, suppliers, and retailers who wish to learn the latest developments in the worldwide organic fruit supply chain. Presentation abstracts are also available.
Can we grow more nutritious fruits and vegetables using organic farming methods?
Organic farmers have claimed for years that better quality soils produce more nutritious foods, but until recently scientific evidence for such claims has been wanting. Recent research of organic farming systems provides some evidence that this claim may be true under certain circumstances. Detractors of organic farming claim that the only reason why organic crops may at times have more phytonutrients than conventional crops is that organic crops are exposed to more stresses. This may be because of the lower nutrient availability of organically approved fertilizers or injury caused by pests and pathogens because of limitations on the pesticides that can be used. To evaluate the claims both for and against, research comparing organic and conventional farming systems are presented, along with a discussion of ways in which more nutritious fruits and vegetables can be grown.
2011 Organic Tree Fruit Session, Washington State Horticultural Association
Organic Tree Fruit Trends. D. Granatstein and E. Kirby, WSU
US organic program equivalency. Linda Condon, WSDA Organic Food Program An organic buyer's perspective. Peter LeCompte, Earthbound Farms Inc.
An in-store assessment of consumer willingness to pay for organic apples. Nate Skuza, EWU.
Life without antibiotics: understanding flower biology in the development of biologically-based integrate fire blight management strategies. Larry Pusey, USDA-ARS.
Life without antibiotics: non-antibiotic systems approach to fire blight control. Ken Johnson, Oregon State University
Managing soil biology for multiple orchard benefits. Mark Mazzola, USDA-ARS.
Orchard understory management options: moving from headache to money maker. D. Granatstein, WSU.
Making money through tree canopy management: crop load, fruit size, return bloom, and fruit finish. Tory Schmidt, WTFRC.
Orchard system integration from the front line: true life experiences. Mike Robinson, Double Diamond Fruit Co.
Current Status of Global Organic Temperate Fruit
Presentation given at the International Organic Fruit Conference in Vignola, Italy, June 19-17, 2008. Co-sponsored by ISHS and IFOAM. The presentation covers consumer market trends, fruit production trends, and economics. The conference included over 40 presentations on plant protection, plant nutrition and soils, post harvest, and economics. These will be published in Acta Horticulturae in the next year.
Comparing tillage and mulching for organic orchard performance
Wiman, M., Kirby, E., Granatstein, D., Mullinix, K. 2008. Poster presented at 2008 BIOAg Research Symposium.
Controlling Codling Moth in Organic Pear Orchards
WSU Entomology. 2003.
Quality of Organically and Conventionally Grown Apples and Strawberries
Research on apple and strawberry by Dr. Preston Andrews, Dr. John Reganold, and Dr. Neil Davies.
Some WSU Extension websites provide links to external sites for the convenience of users. These external sites are not managed by WSU Extension. Furthermore, WSU Extension does not review, control or take responsibility for the content of these sites, nor do these sites implicitly or explicitly represent official positions and policies of WSU Extension.
Organic Apple Production Manual
2000. S. Swezey et al. University of California DANR. Order from 1-800-994-8849.
Organic Tree Fruit Management
1998. Linda Edwards. Certified Organic Associations of British Columbia. Available from IFM, 1-800-332-3179.
Upper Midwest Organic Tree Fruit Growers Network
A good resource more oriented to tree fruit production in humid environments.
Organic Farming Cost and Return Studies
University of California. Includes lettuce, tomato, mixed vegetables, tree nuts, apples.
National Organic Program
includes policies and updates, the new organic seal and its use, lists of organic certifiers, N.O.S.B. (National Organic Standards Board) members and updates, and resource links.