- Author: Emily Dooley
- Posted by: Gale Perez
AI enables low-cost tracking of invasive johnsongrass
To manage johnsongrass, a noxious weed that crowds out cotton and sickens horses, farmers have tried herbicides, burning and hand-pulling. Now, researchers in the UC Davis Department of Plant Sciences have developed a more high-tech weapon against the invasive weed: artificial intelligence and machine learning.
Using photos from Google's Street View database, the researchers have tracked down more than 2,000 cases of johnsongrass in the Western United States for a fraction of the cost and time that it would take for drive-by or other in-person surveys. They call their tool Google Weed View.
The advancement could...
/h2>- Author: Thomas Getts
- Posted by: Gale Perez
From the Lassen county Farm Advisor's Update newsletter (Aug. 2020)
Highlighting Two Uncommon Noxious Weeds
Let's keep them uncommon!
There are two species of noxious weeds I want to bring to your attention, as they are not that common in our area: rush skeleton weed (Chondrilla juncea) and sulfur cinquefoil (Potentilla recta). Both of these perennial species have relatively small populations in the Intermountain...
- Author: Ben Faber
- Re-posted by: Gale Perez
From the Topics in the Subtropics blog :: March 4, 2020
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So I've gotten a few calls lately about this vine with a big green pod that is growing in lemon trees. What is done with it and how do you get rid of it?
Araujia sericifera, cruel vine, moth plant, bladderflower is an escaped ornamental that has become an invasive weed in California. Yes, a pretty vine brought into the garden – “poor man's stephanotis” - and it's gotten out...
- Author: Thomas Getts
When I was an undergraduate back in Colorado, I spent the vast majority of two summers mapping the waterways of Boulder County for invasive species. It was an excellent experience which got me jazzed about weed science. Fighting through the thorns of Russian olive groves, while picking the cheatgrass and houndstongue seeds out of my socks, I was experiencing first hand some of the impacts invasive species have. I quickly realized my discomfort was trivial to the impact these invasive weeds were having on native species.
One of the plants the Land Manager of Boulder County was most concerned about was myrtle spurge (Euphorbia myrsinites L.). Back in Colorado this creeping perennial is an A list noxious weed species...