UCCE Master Gardeners of San Joaquin County
University of California
UCCE Master Gardeners of San Joaquin County

Posts Tagged: weed

Season-long weed control in orchard crops with sequential herbicide programs in California orchard crops

Figure 2. Untreated (Panel A) and treatment #5 (Panel B) 150 days after spring treatment.

Summer grass weed species are becoming more troublesome in orchards in the Central Valley of California. Feather fingergrass, junglerice, sprangletop and threespike goosegrass, to name a few, are summer grass weed species that germinate (or in some...

Posted on Saturday, January 5, 2019 at 8:00 AM
Tags: herbicide (60), orchard (5), weed (22), weed control (77)
Focus Area Tags: Agriculture

Field scouting guide: Palmer amaranth

Poor control of Palmer amaranth can result in a significant infestation late in the season and crop failure. Photos by the late Dr. Ted Webster, Research Agronomist with USDA-ARS

From Growing Produce by Karli Petrovic | November 27, 2018https://www.growingproduce.com/vegetables/field-scouting-guide-palmer-amaranth/ Field Scouting Guide: Palmer Amaranth This month's field scouting guide concentrates on Amaranthus palmeri S....

Posted on Tuesday, December 4, 2018 at 9:42 AM
Tags: Palmer amaranth (7), weed (22), weed control (77)
Focus Area Tags: Agriculture Pest Management

Herbicide injury in avocado

Sometimes weeds are tasty, like amaranth and purslane

From the Topics in Subtropics blog (Oct. 15, 2018) ****************** Although the main objective of herbicide use in avocado orchards (and all crops) is to manage weed populations, sometimes unintentional injury of the crop itself can occur when...

Posted on Thursday, October 18, 2018 at 9:18 AM
Tags: Avocados (6), herbicide (60), herbicide injury (11), weed (22)
Focus Area Tags: Agriculture Food Pest Management

Will climate change affect the sensitivity of weeds to herbicides?

Translocation of glyphosate

Herbicides are the main means of controlling weeds. Recently, there has been increasing concern over the potential impacts of climate change, specifically, increasing temperatures and elevated carbon dioxide (CO2) concentrations, on the sensitivity of...

Posted on Monday, September 10, 2018 at 7:55 AM
Tags: Climate Change (5), glyphosate (30), herbicide (60), horseweed (7), lambsquarter (1), weed (22), weed control (77)
Focus Area Tags: Agriculture Pest Management

Weed Science is everywhere even on summer vacation!

Defoliated tamarisk, some willows coming up in the understory.

Heat is something that many Californians are used to, and live with for several months out of the year, but prolonged triple digit heat is not something I am used to in my corner of the state. Sure it gets hot up here in Lassen County, but there is most...

Posted on Monday, August 27, 2018 at 6:00 AM
Tags: biocontrol (4), Diorhabda (1), tamarisk (1), weed (22)

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