UCCE Sonoma County
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Posts Tagged: pesticide

And Now Paraquat

52268 original

A recent call about the poor control of marestail (horseweed, Conyza canadensis) to glyphosate (Roundup®) wasn't surprising, but that paraquat didnt do the trick was.  It turns out that there is multiple resistance to the materials.  If horseweed is resistant to glyphosate...

Posted on Monday, June 4, 2018 at 8:00 AM
Tags: avocado (14), citrus (32), fleabane (2), hairy (1), herbicide (54), horseweed (7), marestail (4), pesticide (6), resistance (6)
Focus Area Tags: Agriculture

Higher caution will be required when spraying near schools

California Ag Today

Here are a couple of articles from our friends at California Ag Today: New Regs on Pesticide Spraying Near Schools Begin Jan. 1 A Focus on Overwintering Pests and New Spray Regulations Near Schools

Posted on Thursday, January 11, 2018 at 1:50 PM
Tags: new regulation (1), pesticide (6), schools (4), spraying (1)

Treevix labeled for use in California pomegranates


Treevix (saflufenacil) is now labeled for use in California on pomegranates thanks in part to the Western Region IR-4 Project and the UC Davis Weed Science Program. The IR-4 Project facilitates the registration of pest management products for specialty crops (fruits,vegetables,herbs,and other...

Posted on Monday, June 20, 2016 at 3:28 PM
Tags: pesticide (6), Pomegranates (7)

UC workshops on IPM and proposed EPA cancellation of chlorpyrifos

UC workshops to help farmers deal with proposed chlorpyifos cancellation.
New pesticide regulations and integrated pest management (IPM) decision-making will be featured in a series of UC Agriculture and Natural Resources (UC ANR) workshops in January and February 2016.

A critical part of the workshops is the U.S. Environmental Protection Agency's proposal to cancel the pesticide chlorpyrifos in agricultural production. EPA is accepting public comment on the proposal until Jan. 5.

Chlorpyrifos is a widely used pesticide and part of integrated pest management in many crops. Under the trade names Lorsban, Lock-on and in generic formulations, chlorpyrifos is used to control ants, stink bugs, aphids, whiteflies and other pests.  A 2014 report coordinated by the UC ANR Statewide Integrated Pest Management Program concluded the pesticide is an important tool for California producers of alfalfa, almonds, citrus and cotton.

At the workshops, growers, pest control advisors, UC scientists, state and local regulators and members of the local agricultural community will discuss chlorpyrifos permit conditions and the proposed regulations as well as IPM approaches to managing critical pests.

New decision-making tools for insecticide recommendations and stewardship activities will be shared. Industry members will also have the opportunity to provide input to the California Department of Pesticide Regulation and other regulatory officials about the use of chlorpyrifos in their IPM systems.

Meeting dates, times and locations are as follows:

Jan. 7 – Almonds Central San Joaquin Valley
8 a.m. to 12:30 p.m.
UC Kearney Agricultural Research and Extension Center, 9240 S. Riverbend Ave., Parlier

Jan. 8 - Alfalfa and field crops in San Joaquin Valley
8 a.m. to 12:00 p.m.
Cabral Center, 2101 E. Earhart Ave., Stockton

Jan. 12 – Citrus in San Joaquin Valley
8 a.m. to 12:00 p.m.
UC ANR Cooperative Extension office, 4437 S. Laspina St., Tulare

Jan. 21 – Alfalfa in Imperial Valley
8 a.m. to 12:00 p.m.
Farm Credit Services Southwest, 485 Business Parkway, Imperial

Jan. 26 – Almonds in Southern San Joaquin Valley
8 a.m. to 2:30 p.m.
Kern County Agricultural Pavilion
3300 E. Belle Terrace, Bakersfield

Feb. 5 – Almonds in Northern California
8 a.m. to 12:00 p.m
Chico Masonic Lodge, 1110 W. East Ave., Chico

Pest control advisers will receive continuing education credit. For more information contact Lori Berger, UC IPM chlorpyrifos project coordinator, at lberger@ucanr.edu or (559) 646-6523.

An initiative to manage endemic and invasive pests and diseases is part of UC Agriculture and Natural Resources Strategic Vision 2025.

Posted on Monday, December 21, 2015 at 11:37 AM
Tags: chlorpyrifos (4), Lori Berger (3), pesticide (6)

UC offers spray application training Sept. 22-23 in Davis

protective spray gear
Farmers, pest control advisers, pesticide applicators and others who use agricultural spray equipment are invited to attend an agricultural spray application workshop on Sept. 22 and 23. The two-day workshop, hosted by UC Agriculture and Natural Resources, will be held at the Western Center for Agricultural Equipment at 154 Hills Drive in Davis.

The intensive, hands-on workshop will be led by Ken Giles, professor in the Department of Biological and Agricultural Engineering at UC Davis; Franz Niederholzer, UC ANR Cooperative Extension advisor for Colusa, Sutter and Yuba counties; and Lynn Wunderlich, UC  ANR Cooperative Extension advisor for the Central Sierra region.

The UC ANR instructors will train participants to identify the appropriate spray equipment components, practices and conditions necessary to deliver safe and effective agricultural pest control to a particular location, timing and crop.

The workshop will cover nozzles and atomization, the dynamics of drift and how spray droplets move, factors affecting spray deposition, hydraulic nozzle alternatives (electrostatic, air shear, etc.), measuring spray coverage, pumps, sprayer selection, air-assisted spraying and more.

Before the class, to fully prepare, registrants should view a short, online PowerPoint presentation about basic sprayer calibration. A link to the PowerPoint will be sent in the registration confirmation email. A brief quiz on the material will be given at the beginning of class on Sept. 22. 

The training is set to begin at 12 noon on Sept. 22, resuming at 8 a.m. on Sept. 23 and end at 2 p.m.

Registration for the training costs $150 until Sept. 12 and $175 after Sept. 12 and can be paid online at the registration website. Onsite registration will cost $200. The organizers have applied for CDPR Continuing Education units.

To register or to get more information, visit http://ucanr.edu/sites/Spray_Application_Training.

Posted on Friday, August 21, 2015 at 6:57 PM

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