- Posted by: Gale Perez
Have you listened to a Growing the Valley podcast? Here are a couple you might want to check out.
Old and New Perennial Weeds with Dr. Brad Hanson
In this short episode, Phoebe Gordon chats with Dr. Brad Hanson, Weed Specialist with UC Davis. They talk about perennial weed management, as well as two species that have recently become problematic in orchard crops: alkaliweed and threespike goosegrass. We don't know a...
/h4>- Author: Lynn M. Sosnoskie
There are TWO upcoming weed science extension days in the San Joaquin Valley this April.
The first will be held on the 2nd of April at the Kearney Agricultural Research and Extension Center in Parlier (9240 South Riverbend Road, Parlier CA 93648) and the second will be held on April 11th at the Westside Research and Extension Center in Five Points (17353 West Oakland Avenue, Five Points, CA 93624).
The meeting at the Kearney Center will focus on rangeland, turf, and tree and vine systems while the meeting at the Westside Center will focus on agronomic crops, ROWs, and tree and vine systems. Both meetings will open with hands-on weed ID and nozzle...
- Author: Chris McDonald
With the rainfall we've been having every month in Southern California, there are a lot of weeds out there. For those who work in wildland management where rain is the only source of irrigation, in Southern California the growing season started in October. With the continued rains in November, December and January our hills and valleys are green with a bouquet of weeds. Last year the season began in mid-January.
As I write this, there are grasses and mustards that are in well into flower and immature fruits are starting to appear on these...
- Author: Rachael Freeman Long
- Author: Daniel H Putnam
- Re-posted by: Gale Perez
In a period when we've had high rains, it's very difficult to manage excessive winter growth in a Mediterranean climate.
We're familiar with the term 'sheeping-off' for describing the use of sheep to graze alfalfa fields during the wintertime to remove thatch, weeds, and help with weevil control (see ‘Sheeping off' alfalfa is a win-win for all!).
But how about 'goating-off'? Doesn't sound quite right, but close winter grazing by goats is likewise an effective pest management practice, just like sheep. When grazing with sheep or goats, timing is important. Watch for excessive soil compaction when rainy and wet and do not...
- Author: Lynn M. Sosnoskie
Glyphosate was commercialized in 1974. Since then, it has become one of the most widely used (and studied) herbicides. According to Duke (2018b), almost 20,000 scientific publications and patents have included glyphosate as a focus; only 2,4-D surpasses it with respect to citations. The articles in the 5th issue of the 74th volume of Pest Management Science all focus on glyphosate and arose from a day long symposium (which was also dedicated to the molecule) that was held at the 252nd annual meeting of the American Chemical Society (Duke 2018a).
Figure 1. The...