- Author: Devii R. Rao
Fiddleneck (Amsinckia spp.) is a native plant in California. It occurs in grasslands and open, disturbed areas (DiTomaso, Kyser et al. 2013) and is sold as a pollinator plant in native plant seed mixes. Its bright yellow flowers catch the eye of those looking for wildflowers. However, it is important to note that fiddleneck is toxic to livestock.
Fiddleneck seeds contain pyrrolizidine alkaloids which can affect the liver of cattle, horses, and pigs (Fuller and McClintock 1986). Based on necropsies from livestock tested at the California Animal Health and Food Safety (CAHFS) Lab, plants containing pyrrolizidine alkaloids were the number three source of plant toxicity to livestock (Forero et al. 2011). Oleander is the...
- Author: Rebecca Ozeran
Thanks to the recent hot weather (already surpassing 90 degrees several days in a row), we are starting to see the lush green hills near Fresno transition into gold. The much-needed rain we received this spring could unfortunately create a problem in the coming summer: thick forage growth can quickly turn into fuel for fire season.
So, what does this have to do with weed management?
Before wildfire, weeds can be fuel;after wildfire, weeds can spread.
The main fuels in the valley and foothills are typically grasses. Even non-weedy grass species can be an issue if grazing livestock (and hardworking landscapers) can't keep up with grass growth before summer. Annual grasses are great...
- Author: Rebecca Ozeran
Saturday, May 11 • 9:00am to 2:00pm
Ruth McKenzie Table Mountain Preserve (Fresno County)
22477 Auberry Rd, Clovis
Join us for a hands-on, field-based day exploring weed identification, management options, and local best practices! Topics include chemical and cultural weed control, post-fire...
- Posted by: Gale Perez
Topic: UC Ag Experts Talk: Managing Glyphosate-Resistant Weeds in Orchard Crops
Description: One hour webinar about glyphosate-resistant weed management in orchards, delivered by Dr. Brad Hanson. One CEU (other) from the DPR is approved.
Time: Apr 24, 2019 3:00 PM in Pacific Time (US and Canada)
Recorded version will be published on UC IPM YouTube channel about a week after the webinar.
The link to register is https://ucanr.zoom.us/webinar/register/WN_96wd2GBMQl2Ou4i4oSwTTg
More information about the...
- Author: Brad Hanson
2019 Automated Weeder and Thinner Demonstration and Field Day
The 2019 Automated Weeder and Thinner Demonstration and Field day will take place on Tuesday, May 21, from 10:00 a.m. to 12:00 noon at the USDA Spence Research Field Station, 1572 Old Stage Road. Automated technologies are helping to fill the gap in the supply of labor that is occurring in the farming community. At this field day weeders and automated lettuce thinners developed by a number of companies will be demonstrated on lettuce plantings. Both driven and autonomous machines that use a variety of different mechanisms to remove unwanted plants will be available for viewing. These technologies are useful to both conventional and organic producers....