Posts Tagged: pesticide
Here are a couple of articles from our friends at California Ag Today: New Regs on Pesticide...
This is the abstract of a presentation that was made at the recent Huanglongbing Conference held in Orlando, FL. This and other paper abstracts will soon be available at: http://irchlb.org/files/33373ab0-7df3-4117-9.pdf
Spray application of different kaolin formulations on sweet orange plants disrupt the settling and probing behavior of Diaphorina citri
M. Miranda1, O. Zanardi1; H. Volpe1; R. Garcia1; N. Roda2, E. Prado3
1 Fundecitrus, Araraquara, Brazil, 2 Tessenderlo Kerley, Inc./NovaSource, Phoenix, USA, 3 Universidade Federal de Lavras, Lavras, Brazil.
Abstract: The psyllid Diaphorina citri is the vector of the bacteria associated with huanglongbing (HLB), which is the most destructive citrus disease worldwide. Chemical control is the primary tactic against this insect. However, alternative methods are important to achieve a more effective control in an integrated pest management programs. Thus, this research was carried out to assess the influence of different kaolin formulations on the settling and probing behavior of D. citri. In both studies, two wettable powder (WP) kaolin formulations (Tessenderlo Kerley, Inc./NovaSource) were sprayed three times at different concentrations on sweet orange plants. In the experiment to assess the settling behavior, three concentrations (3, 5 and 7% w/v) of both formulations were tested. A non-choice test was performed, where 16 adult psyllids were released in a cage with seedlings of the same treatment, and the number of psyllids/plant at different time intervals was counted. For the probing trial, the electrical penetration graph (EPG) technique was used. Adult psyllids were monitored for 6 h on nursery citrus trees treated with two kaolin formulations at 3 and 5% w/v. The two kaolin formulations have a repellent effect on D. citri, causing an overall reduction of 40% of psyllids settled on treated seedlings compared with untreated control. Moreover, both formulations disrupt D. citri probing behavior, with a significant reduction (60%) in the proportion of psyllids that reach the phloem compared with untreated nursery citrus trees. In general, there were no differences between the kaolin formulations and among the concentrations tested in both experiments (settling and probing). Then, both formulations could be used in an integrated D. citri management program. These findings reinforce the recommendation of kaolin application on young citrus planting as a useful strategy for HLB management, mainly on the edge of the farms.
Photo: ACP Feeding
We are in the midst of a new and changing era of Worker Protection Standards (WPS). The U.S. Environmental Protection Agency (EPA) and the California Department of Pesticide Regulation (DPR) recently published the revised WPS, which is meant to increase protections for agricultural fieldworkers and pesticide handlers from pesticide exposure when they're working in farms, forests, nurseries and greenhouses. The changes are already affecting California agriculture!
What major regulatory changes have already gone into effect?
Several changes are required to have been in place as of January 2, 2017. These include:
- All 417,000 fieldworkers in California must attend annual pesticide safety training.
- Records of all fieldworker pesticide safety trainings must be kept on file for 2 years.
- Fields must be posted when the restricted entry interval (REI) exceeds 48 hours.
- “Application-exclusion zones” must be implemented to prevent the entry of anyone into areas up to 100 feet from pesticide application equipment.
- Instructors previously qualified via a DPR-approved Instructor Training programs (Train the Trainer) are qualified to train through 2017. If you wish to be qualified to train fieldworkers and handlers after December 31, 2017 using this qualification, you must complete an updated, DPR-approved Train the Trainer workshop.
Now is the time to make sure these changes are put in place!
What major regulatory changes are still in store for us? When will they happen?
The regulatory changes that must be in place by January 2, 2018 include:
- Additional training topics for fieldworkers and handlers have to be added to the curriculum.
- Handlers have to suspend an application if anyone enters the application exclusion zone.
Who do these changes affect?
Many people who work in the California agricultural community will be impacted by the WPS revisions. These include fieldworkers, pesticide handlers, farm labor contractors, private and in-house safety trainers, growers, farm managers, licensed pesticide applicators (private and commercial), pest control advisors (PCAs), and crop consultants, to name a few.
How do I know if I am qualified to train?
If you attended one of the DPR-approved Train-the-Trainer programs you are qualified through 2017. However, if you wish to continue training after the end of the year, you must complete a DPR-approved Instructor Training Program, which includes the 2018 training topic requirements.
If you maintain certain licenses/government designations, including PAC, QAC, QAL, PCA, and certain County Biologist licenses you are qualified to train. UCCE Advisors are also qualified to train.
How can I get qualified as a trainer?
To become a trainer, take an Instructor Training program that is approved by DPR for 2018 topics. The University of California Pesticide Safety Education Program (part of the UC Statewide Integrated Pest Management Program, UC IPM), in partnership with AgSafe, will offer multiple workshops this spring that cover the new federal requirements for fieldworker and handler training. You can reserve your spot now. At the end of the training you will be a certified pesticide safety instructor.
If I am currently qualified, how can I make sure I stay up to date on all the new requirements?
If you are currently qualified as a trainer because you maintain a California PAC, QAC, or QAL, or if you are a PCA, you can attend an Instructor Training Program this spring to learn about the new WPS requirements and additional training topics. While a certification may qualify you, an Instructor Training Program will prepare you to train! Register today!
UC IPM Pesticide Safety Education Program
Treevix (saflufenacil) is now labeled for use in California on pomegranates thanks in part to the...
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 firstname.lastname@example.org 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.