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Onions Publications & Resources

Internal Dry Scale and Associated Bulb Rots of Onion > PDF
Onion growers and packers in the Pacific Northwest have observed a problem on red, white, and yellow cultivars: internal dry scale. Bulbs affected by internal dry scale have dead inner scales that are . . . . . more details

Nematodes Associated with Onion in Idaho and Eastern Oregon > HTML
The most common nematodes on onion in Idaho and eastern Oregon are root-lesion nematodes (Pratylenchus spp.), root-knot nematode (Meloidognye hapla), stem nematode (Ditylenchus d . . . . . more details

Nitrogen Uptake and Utilization by Pacific Northwest Field Crops > PDF
This publication is geared to promoting an understanding of the timing and pattern of biomass accumulation and nitrogen (N) uptake for crops in the Pacific Northwest. Proper use of N-based fertilizers . . . . . more details

Nutrient Management for Onions in the Pacific Northwest > PDF
Based on data accumulated over many growing seasons and from many varieties grown in Idaho, Oregon, and Washington, this nutrient management guide assists onion growers and crop advisers in producing . . . . . more details

Pit Disposal of Cull Onions > PDF
Describes the management practices that prevent leaching of nitrogen from cull onion burial pits, including site selection, pit development, loading and disposal of cull onions in pits, pit maintena . . . . . more details

Strip-tillage for Onions and Sweet Corn, Lorin Grigg (Farmer-to-Farmer Case Study Series) > PDF
Lorin Grigg grows onions and sweet corn under sprinkler irrigation in Quincy, Washington. In this publication, Grigg discusses his strategy for cover cropping to protect seedlings from windblown sand . . . . . more details


Local Information

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University of Idaho Extension


Physical Address:
E. J. Iddings Agricultural Science Laboratory, Room 10
606 S Rayburn St

Mailing Address:
875 Perimeter Drive MS 2332
Moscow, ID 83844-2332

Phone: 208-885-7982

Fax: 208-885-9046



Barbara Petty