Posts Tagged: onions

Weather Forecast is Favorable for Many Plant Diseases

A chance of thunderstorms most of the week and moderating air temperatures will promote prolonged leaf wetness and high humidity in the crop canopy both of which are favorable for development of several plant diseases. The smoky air also moderates solar radiation contributing to prolonged leaf...

Farm Advisor Notes from the Field

  With the much needed recent rain, we had some time this morning to provide a short update on some of the observations we've made in the crop fields around Tulelake this spring. Onions 2015 appears to be a terrible year for seed corn maggot damage. The high amounts of organic matter in...

Tulelake Onion Research Published

This article “Evaluation of insecticides and application methods to protect onions from onion maggot, Delia antiqua, and seedcorn maggot, Delia platura, damage” was recently published in the Crop Protection Journal. A free copy of the article can be downloaded using the associated link...

Onion Maggot Plots at IREC

Onion research plots at IREC.

2013 Tulelake Onion Weed Control Study- Making the most with a limited toolbox

Happy New Year! It’s too cold in Tulelake for field work, so I’m busy summarizing 2013 research results. Today I posted a progress report on the Intermountain Research and Extension Center (IREC) website summarizing results for our 2013 onion weed control research. The study...

Weed Control Update for Dry Bulb Onions

Weed control in onions can be challenging. Onions have various challenges that make weed control difficult. They grow slowly early in the crop cycle and never achieve a good competitive crop canopy to suppress weeds. Also, given the high density plantings, it is not possible to effectively...

Onion Weed Control Materials and Timing

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