- Posted By: Brad Hanson
- Written by: Rebecca Miller-Cripps
Article originally posted on the UC ANR Green Blog. Written by Rebecca Miller-Cripps and reposted with permission. Brad
Weeds, weeds, weeds! Have you noticed? This has been a banner year for weeds. Puncturevine where I’ve never seen it before. Garden soil covered with common purslane (at least it’s good in salads). And solid stands of yellow starthistle everywhere!
- Author: Brad Hanson
Residual or soil applied (ie. preemergent or PRE) herbicides can provide many benefits to weed managers. In contrast to foliar-applied (postemergent) herbicides that only affect the weeds present at the time of the application, residual herbicides persist in the soil and have activity on weeds that germinate after the application. Depending on the chemistry of the specific herbicide, the rate applied, weed spectrum in the field, and environmental conditions, weed control may last for several weeks or months.
When performance problems arise with residual herbicides, they usually take the form of either unexpectedly short or unexpectedly long residual activity. As illustrated in the line diagram below, our goal with residual...
- Posted By: Brad Hanson
- Written by: Reposted from WSSA
I ran across a Weed Science Society of America (WSSA) press release from last summer that I found interesting.
The article, entitled "The Deadly Problem of Poisonous Weeds", outlines ten poisonous weeds in North America that are particularly dangerous and features information from UC Davis Cooperative Extension Weed Specialist Joe DiTomaso.
The article includes basic information on the toxicity, identification, and links to photos of::
1. Poison hemlock
2. Waterhemlocks
3. Oleander
4. Bittersweet nightshade
5. Common pokeweed or pokeberry
6....
- Posted By: Brad Hanson
- Written by: WSSA press release
After an extended cool and wet spring, we are finally getting summer-like weather in most of the Central Valley. If your garden and home landscape are like mine, now is the time of the year where the winter weeds are winding down and the summer weeds are coming in to take their places. I thought this would be a good time to re-post this article from the Weed Science Society of America
The article discusses some integrated weed management lessons that homeowners can learn from farmers and can found at: http://www.wssa.net/WSSA/PressRoom/WSSA_Stewardship.htm and is also attached at...
- Posted By: Brad Hanson
- Written by: Weed Science Society of America
Article reposted from the Weed Science Society of America (WSSA) website. The pdf version of the article is attached at the bottom of the post.
Take care,
Brad
http://www.wssa.net/index.htm
http://www.wssa.net/WSSA/PressRoom/WSSA_Compost_WeedFree.htm
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