Research

Biological control of Delia sp. in cole crops with rove beetles, Aleochara sp. Part1)

The consumer demand for organic produce is increasing. In order for growers to be able to meet this demand, effective non-chemical tools need to be available for pest management. In BC in particular there is an increase in the production of organic cole crops, hence an urgent need to develop organic integrated pest management (IPM) systems that emphasize biological, cultural and other non-chemical methods (for insect and disease management).

Biological control of Delia sp. in cole crops with rove beetles, Aleochara sp. (Part 2)

The objective of this study was to examine the use of rove beetles, Aleochara spp., for the biological control of root maggots, Delia spp. in organic cole crops. We were interested in manipulating Aleochara numbers by either conservation strategies or by augmentative releases of mass-reared Aleochara bilineata. 

Impact of Disease Suppressive Composts on Organic Vegetable Quality Composition and Yield

The goal of this research was to initiate studies on compost effects on severity of common soil borne diseases and to characterize changes plant growth due to improved nutrient availability and soil microbial activity with compost application in organic production systems. 

Project Objectives

-Analyze several animal manure-based, organic-approved compost products for suppression of important soil-borne pathogens of vegetable crops in the Northeast

-Determine applicability of a farmer-based test kit for assessment of compost maturity to predict suppressiveness

Soil Nutrient Balancing in Sustainable Vegetable Production

The purpose of this project is to determine whether an unfavorable balance among soil 

A comparison of antibiotic susceptibility patterns for Staphylococcus aureus in organic and conventional dairy herds

Mastitis is considered to be the most costly disease affecting the dairy industry with annual losses in the United States exceeding $2 billion (Philpot, 1984). Losses stem from milk discard, drug costs, veterinary care, increased labor, and premature- culling. Staphylococcus aureus is one of the most important pathogens causing intramammary infections in dairy cattle (Gonzalez et al.,1988) and continues to be one of the major causes of mastitis in dairy herds worldwide (Barkema et al. 1998, Gonzalez et al. 1988, Nickerson et al. 1999, Osteras et al. 1999, Sol et al.

Evaluation of Alternative Cultivators for Vegetable Production

The brush hoe cultivator (Bartchi Fobro Co., Switzerland) was evaluated for weed control cool-season vegetables in the Salinas Valley. The brush hoe was compared with conventional vegetable cultivators in seven on-farm trials. The brush hoe cultivated closer to the seed row than the conventional cultivators used by the growers. It left uncultivated strips 2 7/8 inch wide while conventional cultivators generally left uncultivated strips four inches wide. The brush hoe provided comparable or improved weed control over conventional cultivation.

A grower-managed biorational program for artichoke pests (BIORAPP) on the north central California coast

A native egg parasite, Trichogramma thalense, was mass-reared in the laboratory and released a maximum of thirteen times against the eggs of the artichoke plume moth (Platyptilia carduidactyla) in three 5-acre biointensive artichoke production fields on the northern Santa Cruz/San Mateo County coast in 1998 and again in 1999-2000.

Evaluation of kaolin-based particle film coatings on insect and disease suppression in apples

The Organic Farming Research Foundation of Santa Cruz, CA generously provided a grant of $3,479 in 1999 to initiate this study at the Southwest Research Center, Mt. Vernon, MO. The 2000 growing season was completed September 28, 2000, and I am pleased to submit this final summary of our results. A proposal for the funding of the second year's research has been submitted to OFRF. The particle film technology tested in this study appears to offer tremendous potential in safely suppressing both insects and disease in Midwestern apple production.

Organic Management of Garden Symphylans (Scutigerella immaculata) in Annual Cropping Systems

The garden symphylan is an increasingly common problem on organic farms. Symphylans have a diverse diet, feeding on decaying organic matter and on the roots of a very wide range of crops and other plants, including many weeds. Heavy symphylan populations can severely stunt, and even kill, most annual

Effectiveness of compost extracts as disease suppressants in fresh market crops in BC

One of the major challenges facing organic producers is disease management. The losses in vegetable production due to disease can be significant and in some, cases, can devastate entire crops. Cultural methods of disease  control are commonly used on organic farms. The application of organic chemicals for disease control is often a

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