As most orchardists and pest control advisors are well aware, glyphosate-resistant weeds have been one of the biggest weed management challenges in California orchard crops for several years.
Depending on where you are located in the Central Valley, your biggest challenges in the glyphosate-resistant weed department are probably one or more of the following winter annual weeds. In the San Joaquin Valley, hairy fleabane and horseweed (also known as mare's tail), dominate. In the Sacramento Valley and in some North coast areas, annual or Italian ryegrass is more common. For an extra challenge, many growers have a mix of several of these, in addition to...
I received notification recently that Rely 280 can now be used in California without growers being required to use a closed mixing and loading system.
According to manufacturer representatives, a revised label has been approved by the California Department of Pesticide Regulation and the US-EPA.
Here's a link to the press release for more info and I've pasted below a particularly important paragraph from that press release:
New inventory of Rely 280 herbicide, which will carry the revised...
I found out today that I previously misread the label of a new herbicide registered in several California orchard crops.
Broadworks Herbicide (from Syngenta) was registered in fall 2015 on several citrus, stone fruit, and tree nut crops (but not every crop in those groups).
I'm not entirely sure if I misread the label or if I simply made a typo when I last updated the T&V Herbicide Registration chart (which is totally possible after you've read several dozens of labels). At any rate, I erroneously listed mesotrione as registered on peach in my November update of that chart; however, Broadworks is not actually currently registered on that...
Vineyard Herbicide Trial Field Meeting
Date: July 21, 2015
Time: 9:00 am – 10:30 am
Location: Muller Ranch Vineyards
34998 County Road 18, Woodland, CA 95695
UC Cooperative Extension...
A quick post today to share a link to the recently revised "UC IPM Pest Management Guidelines for Avocado" (UC ANR Publication #3436). You can download the whole document as a pdf here, or use it online at the above link
Although there are also well-written sections on general avocado pest management, as well as specific information on insects, mites, and diseases of avocado, since this is the Weed Science blog, I'd better post a link directly to the Integrated Weed Management section...