University of Idaho Extension, Nez Perce County U-Idaho Extension Image Map

Blair Combine

Crop producers can face many pressures posed by low commodity prices, environmental regulations, rising production costs and competition for export markets. UI Extension, Nez Perce County educational programs support the contribution of small grains and alternative crops to the economy of Nez Perce County and north central Idaho. We address environmental concerns and the growers’ ability to compete in today’s marketplace. Crop advisory committees guide programming development by prioritizing the educational needs of our area farmers.

2013 Spring Pea, Lentil, Chickpea Variety Testing
2013 Winter Wheat Trial–Tammany/Lewiston and Genesee

Soft White Winter Wheat

Both locations suffered from dry conditions and late frosts. Plots at Tammany/Lewiston were variable in height as were many winter wheat fields in the surrounding area. Yields averaged 100 and 96 bu/A in Lewiston and south of Genesee respectively. Both sites were conventionally tilled, experienced slight rust pressure, and were sprayed with fungicide (Lewiston once at spring herbicide application, Genesee twice).  Trials were set up as three-rep lattices and analyzed using MSTAT-C.

Hard Winter Wheat

The hard winter wheat trial at Tammany averaged 96 bu/A, suffered dry conditions in May/June, and late frosts. Stripe rust was light and late.

2013 Winter Wheat Variety Trials–Nezperce

Our Nezperce winter wheat trials were direct seeded on October 18 and came through the winter well. Stripe rust was largely absent on the Camas Prairie this season, but water stress and late frosts were standard in most north Idaho fields of any elevation.

2013 Winter Wheat Variety Trials–UI Parker Farm

The University of Idaho Parker Farm experienced a deep frost in late May, dried out in June and had light stripe rust pressure late in the season.  Both trials were sprayed for rust once at spring herbicide application.  The soft white trial (long-term direct seeded, three year winter wheat-barley-legume rotation) was grazed by elk over the winter.  The hard wheat (conventional-till) was grazed by geese all spring.  No significant disease or insect pressure was observed otherwise.

2012-13 Winter Wheat Variety Trials–Summary Across Locations

Summary tables for our Camas Prairie, L-C Valley and Palouse winter wheat trial sites.  Our trial in Boundary County has been cut but not processed, yet.
These tables include new information from Tensed (Benewah Co.).  This location was very wet through the spring and seemed to avoid the worst of our mini-drought.  This location was tilled and followed lentils.  Stripe rust was light but present and our cooperator applied fungicide once in the spring.

2013 Spring Wheat Variety Trials–Genesee

Spring wheat trials on the rim south of Genesee (Kurt Blume, cooperator) were direct-seeded on April 3, 2013, and harvested August 13, 2013.  The field was fertilized with 60 lbs/A anhydrous ammonia in the fall with an additional 40 lbs/A and 80 lbs/A of 31-10-0-7.5 added at planting to the soft and hard trials respectively. A fungicide was applied with spring herbicides, but overall stripe rust pressure was low. Soil pH’s were recorded in the 5.8-5.6 range in the top 12”.

Our earliest location, we direct seeded on March 29, 2013, following winter wheat. 60 lbs anhydrous ammonia was fall applied and we put down 20 additional lbs N using 31-10-0-7.5 at planting (targeting 80 lbs N plus whatever OM became available). Soil pH’s were recorded from 5.4 in the 1-3” depth to 6.3 at the 6-12” depth. Despite a very dry late spring/early summer, late frosts, and higher than average tempseratuers throughout the rest of the summer, yields were great (63-112 bu/A with 94 bu/A average).

2013 Spring Crop Variety Trials–Craigmont

Fertility at this location consisted of 60 lbs N of pre-plant ammonia combined with 20, 40, and 80 lbs N for spring barley, soft spring wheat, and hard spring wheat respectively using 33-10-0-7.5. This site was conventional tilled following winter wheat. Little rust pressure was noted. Late frosts occurred in late May and soil moisture was limited for much of the growing season.

North Idaho Alfalfa Variety Trial

UI Extension is working with growers and cattlemen on the Camas Prairie to determine which types of alfalfa perform better under their conditions. The multi-year study includes 33 types of alfalfa and a variety of sanfoin. This research is being conducted at the request of local growers.  For more information, contact Jim Church (208) 983-2667 with UI Extension, or Ken Hart (208) 937-2311 with UI Extension, Lewis County.

stripe rust2013 Stripe Rust Update

Stripe Rust for the Pacific Northwest
Current information about stripe rust and resources for growers, researchers, and anyone interested in stripe rust can be found on the USDA/ARS Stripe Rust website

Aphid Tracker logoUniversity of Idaho Legume Virus Project

Aphid Virus Tracker

A resource for managing aphid-vectored viruses in cool season legumes


Idaho Pest Management Center

Our function is to provide pest management information for agriculture and horticulture in Idaho and surrounding states. We prioritize and coordinate pest management research for extension and educational programs and respond to the informational needs of the public and private sectors on a regional basis.

 October 23, 2013