From the UC Rice Blog (https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=42838)

A new herbicide is available this year for use in California rice: RebelEX®, manufactured by Corteva. It is a premix of two other well-known herbicides: Clincher® and Granite SC®, both from Corteva. The active ingredients in RebelEX® are cyhalofop (same as Clincher®) and penoxsulam (same as Granite SC®). Since it contains cyhalofop, it is important to check with your respective counties on the buffer zones and aerial application restrictions for...

Richard Smith is the Vegetable Crops and Weed Science Farm Advisor in Monterey County, California.
 

Impatiens Necrotic Spot Virus (INSV) in the Salinas Valley is a tospovirus that is spread primarily by western flower thrips (Frankliniella occidentalis). It has a wide host range of over 600 species of plants, including vegetables such as lettuce, tomatoes and peppers, ornamental such as fuchsias, dahlias and gazanias, and many weeds (see below). In the summer months when INSV is well established, lettuce production fields serve as the primary host of the virus, and thrips fly from infected fields that are being harvested to younger unharvested fields, and in that way, propagate and spread...

Last summer, I was called out to view what appeared to be a herbicide drift incidence in a commercial tomato field. The leaves of affected plants were distorted with cupping and twisting that is characteristic of the growth regulator herbicides such as 2,4-D and dicamba (Figure 1). Cattails and mustard weeds growing in an adjacent drainage ditch appeared as though they had been recently sprayed with a herbicide, however, the symptoms looked to be more like that from glyphosate. (Figure 2). If these tomatoes were the unlucky recipient of drift from a Roundup application, they certainly were not expressing typical symptoms (Figure 3). Additionally, there had been no recent sprays of any herbicide made to the ditch, at least according to...

Here's Whitney Brim-DeForest, UC Cooperative Extension Rice Advisor, on the Out of the Blank podcast:

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Whitney Brim-DeForest is the County Director for University of California Cooperative Extension Sutter-Yuba, and the UCCE Rice and Wild Rice...