Effect of cultural practices on yield and head rot of broccoli

broccoli

OBJECTIVES:

  • To evaluate the effect of plant spacing on yield and disease incidence in two broccoli cultivars
  • To evaluate the effect of frequency and amount of irrigation water on yield and disease incidence in three broccoli cultivars

Downy Mildew Control in Table Beets

OBJECTIVE: To evaluate the efficacy of registered and unregistered chemical controls of Downy Mildew of Table Beets (Peronospora schachtii) and other foliar diseases of beets.

Control of grey mold and white mold of snap beans (1988)

beans

Report to the Oregon Processed Vegetable Commission

Dan McGrath
OSU Dept of Horticulture

Mary Powelson
OSU Dept of Botany and Plant Pathology

Objectives:

  1. To evaluate timing, rate, and number of applications of foliar fungicides for control of grey mold and white mold of snap beans.
  2. To evaluate the efficacy of two biocontrol agents for control of grey mold of snap beans.

Effect of Nitrogen Sources, Calcium Rates, and Bactericides on Yield and Head Rot of Broccoli

broccoli

OBJECTIVES:

  • To evaluate the effect of several nitrogen sources and calcium rates on yield, head rot, quality, and nitrogen content of broccoli.
  • To evaluate the efficacy of copper compounds and selected bacterial antagonists for control of broccoli head rot.

Dependable Stand Establishment for Super Sweet Corn (1989)

corn

Report to the Oregon Processed Vegetable Commission

C. Shock and C. Burnett
OSU Agricultural Experiment Station

Cooperators:
Dale Wilson and Krishna Mohan, University of Idaho
Bob Trent, Crookham Company
Lee Schweitzer, Asgrow
Mark Hughes, Germains

Objectives: 

Control of Rust and Downey Mildew of Table Beets (1989)

beets

Report to the Oregon Processed Vegetable Commission

Ross Penhallegon
OSU Dept of Horticulture

Dan McGrath
OSU Dept of Horticulture

Paul Koepsell
OSU Dept of Botany and Plant Pathology

Objective:

  1. To evaluate the effectiveness of registered and unregistered chemical controls of Rust, Leaf Spot, and Downey Mildew in Table Beets (Uromyces betae, Cercospora beticola, and Peronospora schachtii.)

Status Report Table Beets, Aphid Control, Virus Suppression and Yield Response 1990

beet

Aphid populations are being monitored in 4 different red table beet plantings in the South Willamette Valley. Fields were
selected because of their proximity to sugar beets being grown for seed. Yellow pan traps with water are being used to monitor black bean aphid and green peach aphid flights into beets. Aphid populations are being monitored on beets for in field build up.

Green Bean Breeding

beans

Objectives: Breed bush green beans for the western Oregon processing industry with:

  • Improved potential for high yields at favorable sieve sizes and dependability.
  • Improved straightness, texture, and other quality factors.
  • Develop easy picking and small pod strains of Blue Lake type.
  • Resistance to white mold and root rot.

Fungicide resistance in Botrytis cinerea in snap beans, and chemical and biological control of gray and white mold of snap beans

beans

OBJECTIVES:

  • Determine the distribution and frequency of benomyl and vinclozolin/iprodione resistance in the Botrytis population in snap bean fields located in the Willamette Valley.
  • Evaluate the efficacy of experimental fungicides for control of gray mold and white mold of snap beans.
  • Evaluate the efficacy of biological antagonists for control of gray mold of snap beans.

Control of Rust, Cercospora, and Mildew of Table Beets (1991)

beet

Report to the Oregon Processed Vegetable Commission

Ross Penhallegon
OSU Dept. of Horticulture

Paul Koepsell
OSU Dept of Botany and Plant Pathology

Objective:

  1. Evaluate the effectiveness of non registered chemicals (Bayleton, Folicur) and registered chemical (Sulfur) for the control of Rust, Leaf Spot, and Mildew in Table Beets (Uromyces betae, Cercospora beticola, Peronospora schachtii, and Erysiphe polygoni.)

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