Posts Tagged: herbicides

Adviser helps growers tackle orchard weed management

From the Western Farm Press • March 17, 2021 By Lee Allen ********** Recurring, multiple-resistance species are among the biggest challenges. Brad Hanson gets down and dirty in his line of work as a weed specialist with the University of California, Davis Plant Sciences Department,...

Preliminary Herbicide Screening in Rice on Watergrass Species

In 2017, I started getting reports of a watergrass biotype/species (Echinochloa spp.) that was difficult to control using our suite of herbicides registered in rice. At the time, I knew we had multiple herbicide-resistance in late watergrass (Echinochloa phyllopogon), so I initially just thought...

The Current Status of Herbicide Resistance in California

Weeds compete with crops for light, water, and nutrients, which can result in yield reductions. Weeds can also interfere with crop production by serving as alternate hosts for pests and pathogens, providing habitat for rodents, and impeding harvest operations, among other impacts. Natural areas can...

What to do with those tough to control perennial weeds in established alfalfa?

The old saying, “Everything's fine until it's not,” comes to mind when dealing with some tough to control perennial weeds in alfalfa production during the summertime. Such was the case for an alfalfa field in the Sacramento Valley, where weed control seemed good up until mid-summer, and...

Glyphosate formulations - what's the diff (and what's a salt)?

Glyphosate is one of the most widely used herbicides in the world and is extremely important in many of our orchard, vineyard, and annual crops as well as in non-crop and home situations. However, it can be confusing to understand some of the differences among various formulations of glyphosate...

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