- Author: Cheryl Reynolds
The California Department of Pesticide Regulation (DPR) runs the most extensive Pesticide Residue Monitoring Program in the nation and is hard at work ensuring that the fruit and vegetables we purchase and consume are free from illegal pesticide residues. Just last month, DPR detected residues of a pesticide not registered for use on grapes and fined the grower $10,000 for using a pesticide in violation of the label and for packing and attempting to sell the tainted produce.
Cases like this are rare in California but remind growers how important it is to apply pesticides correctly by following all pesticide label directions. Understanding and following label instructions is the focus of a new online course developed by the University of California Agriculture and Natural Resources Statewide Integrated Pest Management Program (UC IPM).
Proper Pesticide Use to Avoid Illegal Residues is targeted to those who apply pesticides or make pesticide recommendations. It explains what pesticide residues are, how they are monitored, and highlights important residue-related information from several sections of pesticide labels. In addition, the course identifies the following as the most important factors leading to illegal residues:
Using a pesticide on a crop or against a pest for which it is not registered
Applying pesticides at an incorrect rate
Ignoring preharvest intervals, re-treatment intervals, or plantback restrictions
Course participants are presented with several real-life scenarios. They must search through actual pesticide labels to determine if the scenario illustrates proper use of pesticides or if the described situation could potentially lead to illegal residues.
The overall goal of this course is to have participants follow pesticide label instructions when they return to the field. Following the label can eliminate incidences of illegal pesticide use.
Proper Pesticide Use to Avoid Illegal Residues is published just in time for pest control advisers and pesticide applicators who are still a few units short to renew their licenses or certificates with DPR. The course has been approved for 2 hours of Pesticide Laws and Regulations continuing education units (CEUs) from DPR and costs $40. If you don't need CEUs, but are still interested in viewing the course content, check it out for free on YouTube.
DPR recommends that renewal packets be submitted before November 1 in order to receive your renewed license or certificate by December 31, as the processing time can take up to 60 days. For additional online courses that UC IPM offers, visit the online training page.
- Author: Kathleen Reyes
- Author: Ashley Van Vliet
- Author: Vonny M. Barlow
The Integrated Pest Information Platform for Extension and Education (iPiPE) is dedicated towards creating a nationwide data base system that tracks various crop pests and diseases. The program aims to address the need for a more efficient form of pest and disease management in crops to increase profit by decreasing the amount
iPiPE is currently collaborating with several integrated pest management programs (IPM) and universities across the United States in order to refine the online system and begin to introduce iPiPE to the agricultural community. Here at the University of California's Cooperative Extension facility in Blythe, CA, entomologist Dr. Vonny M. Barlow is currently working on his second year with Euchsistus servus and iPiPE interns
iPiPE interns Reyes and Van Vliet have been responsible for working with Dr. Barlow in gathering data and sharing their findings in the iPiPE online data system. Their work with the system is serving as a trial to help the program enhance their system features and allow a collection of data to save in order to begin the creation of the pest and disease tracking content for future pest management practitioners. Reyes and Van Vliet have also made efforts to be advocates for iPiPE by reaching out to PCA's and growers through different forms of communication methods. Outreach methods included emails, phone calls and personal meetings. As a form of educating growers and PCA's about iPiPE, a handout with information about the goals and benefits that the
iPiPE's efforts in creating a change in culture by launching their data system has been ambitious and it is the hope of the program that in time the agricultural community will hop on board and take note of the many benefits a nationwide database system can offer. Before that time comes, however, iPiPE will continue to devote its attention to encourage growers and PCAs to join the movement as well as optimize its content for the future benefit of the agricultural industry.
- Author: Ashley Van Vliet
- Author: Kathleen Reyes
- Author: Vonny M. Barlow
Entomologist, Dr. Vonny Barlow of the University Cooperative Extension is in the process of continuing his research with Euschistus servus, or Brown Stink Bug (BSB),in cotton. Results from Barlows' studies have contributed to more effective management of BSB in Southern California.
In the eastern states, primarily Georgia, boll rot and cotton staining created by the BSB has become a substantial issue. Initially there was fear that BSB and associated boll rot could cause significant cotton losses in California which prompted many to make chemical applications. In fact, these chemical applications exceeded the regular 3-4 insecticide applications every season, sometimes substantially.
Dr. Barlow is currently in the second year of his experiment which he began over 1 month earlier than in 2015. Three commercial cotton fields were selected to establish experimental plots. Among the three fields, sixteen sampling
At each sampling locations three data points are gathered. The first data sampling consisted of recording the number of BSB taken from each pheromone trap every seven days. Next, sweep samples consisting of 20 sweeps per trap location are collected and sorted in the laboratory for total numbers of BSB. Finally, stink bug damage to cotton bolls is assessed with 10 cotton bolls per each trap location selected and taken to the lab were they are “cracked”, and processed for; external and internal feeding punctures, stained cotton lint and presence of boll rot. By the end of the season we will have hand processed over 7,000 cotton bolls for this project.
The results of the experiment during the first year demonstrated that there is no significant aggregation of BSB along cotton field perimeters, contradicting what was previously predicted. Pheromone traps yielded greater stink bug numbers than sweep sampling over the same time period. However, the use of pheromone trapping is intensively laborious. It was also demonstrated that the use of 20% internal boll “warts” was not a useful indicator for “triggering” a chemical applications since it was shown that there is no relationship between presence of internal boll warts and cotton boll rot. It appears that even though boll warts when present, are not a “pathway” for bacteria that causes boll rot in Southern California. This may be due to the sometimes harsh environment of California's southern desert which may make the cotton plant leaf surface inhospitable to bacteria. Altogether these findings suggest that insecticide applications for the BSB in Southern California does not need to take place, saving growers from costly applications every season.
- Author: UC Statewide IPM Program
Various insects, birds, and other animals pollinate plants. Bees, especially honey bees, are the most vital for pollinating food crops. Many California crops rely on bees to pollinate their flowers and ensure a good yield of seeds, fruit, and nuts. Pesticides, especially insecticides, can harm bees if they are applied or allowed to drift to plants that are flowering.
Our mission at the University of California Agricultural and Natural Resources (UC ANR), Statewide Integrated Pest Management Program (UC IPM) is to protect the environment by reducing risks caused by pest management practices. UC IPM developed Bee Precaution Pesticide Ratings to help pest managers make an informed decision about how to protect bees when choosing or applying pesticides. You can find and compare ratings for pesticide active ingredients including acaricides (miticides), bactericides, fungicides, herbicides, and insecticides, and select the one posing the least harm to bees.
A group of bee experts in California, Oregon, and Washington worked with UC IPM to develop the Bee Precaution Pesticide Ratings. They reviewed studies published in scientific journals and summary reports from European and United States pesticide regulatory agencies. While the protection statements on the pesticide labels were taken into account when determining the ratings, it is important to stress that UC IPM's ratings are not the pollinator protection statements on the pesticide labels. In a number of cases, the ratings suggest a more protective action than the pesticide label.
The UC IPM ratings also include active ingredients that may not be registered in your state; please follow local regulations. In California, the suggested use of the bee precaution pesticide ratings is in conjunction with UC Pest Management Guidelines (for commercial agriculture) and Pest Notes (for gardeners). Each crop in the UC Pest Management Guidelines has a link to the Bee Precaution Pesticide Ratings database and provides guidance on how to reduce bee poisoning from pesticides.
- Author: Cheryl Reynolds
Are you looking for continuing education units (CEUs) to complete your renewal application this year for the Department of Pesticide Regulation (DPR)? The UC Statewide IPM Program has several online courses available that can help you get those last few needed credits.
DPR license and certificate holders with last names beginning with M – Z renew this year. Renewal packets must be submitted to DPR before November 19th to ensure that licenses are renewed by January 1, 2016. After that, applications may take up to 45 calendar days to process.
The online courses available from UC IPM that offer units for DPR license renewal include:
- Providing Integrated Pest Management Services in Schools and Child Care Settings (1 unit Laws and Regulations and 1 unit Other)
- Pesticide Resistance (2 units Other)
- Pesticide Application Equipment and Calibration (1.5 units Other)
- IPM – A Solution for Reducing Pesticides/Water Quality: Pesticide Properties (1 unit Other)
- The Impact of Pesticides on Water Quality/Mitigating Urban Pesticide Runoff (1 unit Other)
- Water Quality and Mitigation: Bifenthrin and Fipronil (1 unit Other)
- Herbicides and Water Quality (1 unit Other)
CEUs from the Structural Pest Control Board are also available for most of these courses.
For a list of other approved online or in-person courses, visit the DPR website. UC IPM plans to add additional online courses for 2016, including those available for Laws and Regulations units. For more information about the courses UC IPM offers as well as additional training opportunities and pest management information, see the UC IPM web site.