The IPM Hour
The IPM Hour is a monthly online seminar covering a variety of IPM-related topics and research. It is held the second Wednesday of each month at noon Pacific Time and features a presentation (or two) with Q&A and discussion.
Upcoming Episodes: All at noon Pacific
May 10 - Gino Graziano, University of Alaska, Fairbanks: Using persistent herbicides to produce certified weed-free products and updates into the non-target impacts of basal bark treatments.
June - No IPM Hour due to conflicts with the Western IPM Center's annual Advisory Committee meeting.
July 12 - Jill Silver, 10,000 Years Institute and Lauren Kuehne, Omnifishient Consulting: Lessons learned from 20 years of management of invasive knotweed on an unregulated Western River.
August 9 - Kristen Bowers, New Mexico State University: Enhancing biocontrol of puncturevine with climate-adapted insect biocontrol agents.
September 13 - Beth Pringle, University of Nevada: Habitat management as a conservation biological control strategy for pest management.
October 11 - Rebecca Schmidt, USDA Agricultural Research Service: Augmented biocontrol in Northwest tree fruit.
Episode 30 - Watch Recording
The Evolution of Federal Regulations to Protect Bees
Presenter: Andony Melathopoulos, Oregon State University
Description: There has long been federal review of pesticides for risk to bees and EPA’s approach to evaluating risk to bees has undergone large changes since 2010. This session reviews these changes and how it has translated to changes in label language on pesticides.
Episode 29 - Watch Recording
Integrated and Cooperative Russian Thistle Management in the Semi-Arid Pacific Northwest
Presenter: Judit Barroso, Oregon State University
Description: This presentation will focus on Russian thistle ecology (seed germination, seed viability, seed longevity) and the amount of water extracted from the soil if it is not controlled; Russian thistle control post-harvest and some ideas to improve the control at that time; and whether cooperative management is helping to reduce Russian thistle infestation and its control cost.
Episode 28 Watch Recording
Joint Management of Interacting Agricultural Pests in Small Grain Systems
Presenters: Fabian Menalled and Laura Berrios-Ortiz, Montana State University
Description: In the Northern Great Plains, the concentration of wheat production has resulted in the influx of a specialized pest complex threatening small grain production systems. In this region, the wheat stem sawfly [Cephus cinctus Norton (Hymenoptera: Cephidae)], grassy weeds, and Fusarium represent a multitrophic pest complex whose synergistic impacts on yield and quality hinder the sustainability of cropping systems. Not only do these pests interact, but they also respond differently to crop management practices. Yet little knowledge exists on interconnected relationships between these pests and their management.
In this webinar, we will present our research assessing the individual and interactive effects of commonly used practices on the joint management of Bromus tectorum (cheatgrass, downy brome), wheat steam sawfly, and Fusarium in wheat systems. The ecologically-based principles we are learning will help develop a whole-farm pest management approach that integrates economically viable and environmentally sensible tactics.
Episode 27 - Watch Recording
Western IPM Center New Grant Applicant Overview and Q&A
Presenters: Doug Johnson of the California Invasive Plant Council, Elise Gornish of the University of Arizona and Doug Walsh of Washington State University
If you've never applied for a Western IPM Center grant before, tune into this webinar and learn some tips and tricks for getting and managing one of our grants. The panel of recent grantees take some of the mystery out of our grant process and answer questions from prospective first-time applicants.
Episode 26 - Watch Recording
Turning IPM into an Educational Board Game
Presenters: Jason Thomas and Grant Loomis, University of Idaho
In 2020, Jason and Grant developed an educational board game known as Pest Friends. The game is a simulation of pest management within an agricultural field and is currently being used as parts of college and public school courses. Recently the team received a Western SARE grant to expand the game and print more copies. A special part of the grant is to teach educators how to use the game and get copies of the game into the hands of interested teachers in the Western Region.
Episode 25 - Watch recording
Utilization of Almond Processing Residual Biomass for Soil Biosolarization
Presenter: Christopher Simmons, UC Davis
Soil biosolarization is an integrated pest management technique that is an alternative to soil fumigation. The process utilizes passive solar heating and soil fermentation to inactivate soil pests. A circular economy biosolarization approach was examined wherein residues from commercial almond processing were used as organic amendments to drive fermentation during biosolarization of a preplant almond orchard. The short and long term effects on biopesticide production, phytoparasitic nematode control, soil fertility, and crop health will be discussed.
Episode 24 - Link to recording available by request
Evolution of Eriophyoid IPM
Presenter: Jacqueline Sarratt
A review of past practices and their potential pitfalls, current evidence-based recommendations and future study needs. Eriophyoids are the second-most economically impactful Acari pest after spider mites.
Episode 23 - Watch recording
Biocontrol Potential of Native Entomopathogenic Nematodes for Insect Management in Oregon Seed Crops
Presenter: Navneet Kaur, Oregon State University
Entomopathogenic nematodes (EPNs) may provide a promising non-chemical alternative for insect pest control, with native EPN strains that are host specific and well adapted to local conditions. For use in grass seed systems, knowledge of their distribution, species composition, parasitism rates, and annual life-cycle fluctuations are needed to establish potential use patterns. Three native EPN strains were found to be present in at least one-third of the commercial grass seed fields surveyed during spring 2021 in western Oregon, warranting further testing of their biocontrol potential. Preliminary results of the lab inactivity trials using three native Oregon isolates and commercial EPN products against black cutworm, Agrotis ipsilon (Hufnagel), larvae were also promising. To determine the suitability of EPNs as a promising biocontrol agent for sod webworm, Chrysoteuchia topiaria Zeller and potentially other subterranean lepidopteran pests in Oregon’s grass seed production systems, more data is needed on the efficacy of native EPN strains against sod webworm in the greenhouse and semi-field conditions, as well as testing EPNs in combination with selective insecticides registered for sod webworm control in grasses grown for seed.
Episode 22 - Watch recording
Identifying and Characterizing Pesticide Use on 9,000 fields of Organic Agriculture
Presenter: Ashley Larsen, University of California, Santa Barbara
Notwithstanding popular perception, the environmental impacts of organic agriculture, particularly with respect to pesticide use, are not well established. Fueling the impasse is the general lack of data on comparable organic and conventional agricultural fields. In this talk, I'll discuss a recent project where we identify the location of ~9,000 organic fields from 2013 to 2019 in Kern County, CA, and parse apart how being organic relative to conventional affects decisions to spray pesticides and, if spraying, how much to spray. I will then briefly discuss an extension of this work that seeks to understand if there are spillover effects of organic agriculture on the pest control decisions on surrounding cropland.
Episode 21 - Watch recording
Occurrence of Podosphaera macularis and Golovinomyces ambrosiae in Powdery Mildew Outbreaks in Hemp Production in the Pacific Northwest
Presenter: Cynthia Ocamb, Oregon State University
Cannabis (hemp) and Humulus (hop) are the two economically important crops in the Cannabaceae family. Golovinomyces ambrosiae has been reported to incite powdery mildew on hemp in the Pacific Northwest and other regions. During 2020, hemp growing on an OSU Farm was found to be infected with Podosphaera macularis. Hemp fields in Oregon and Washington were surveyed in 2021 shortly after transplanting as well as in mid- and late-season to evaluate powdery mildew. Site selection emphasized locations in the Willamette Valley (Oregon) and Yakima Valley (Washington) in order to quantify occurrence of powdery mildew in locales where both hop and hemp are produced. Disease incidence and the occurrence of specific powdery mildew fungi will be presented.
Episode 20 - Watch recording
IPM and Bee Health: Opportunities (and the Places Where They Work against One Another)
Presenter: Andony Melathopolis, Oregon State University
Bee health and IPM are frequently held as being synonymous. But is this really the case? In many Best Management Practices for bee health, for example, we call for clean-up sprays before bloom to avoid bloom sprays, even if economic thresholds have not been yet met. In this talk I discuss the ways bee health has both posed opportunities for advancing IPM, and some of the ways it... doesn't.
Episode 19 - Watch recording
IPM Decision-Support Tools for Wildland Weed Management
Presenter: Doug Johnson, California Invasive Plant Council
Doug Johnson from the California Invasive Plant Council discusses IPM online decision-support tools for managing invasive plants in natural lands, including the Weed Control User Tool (WeedCUT). https://weedcut.ipm.ucanr.edu/
Episode 18 - Watch recording
Managing Herbicide-Resistant Italian Ryegrass with Electric Current in Hazelnut Orchards
Presenter: Marcelo Moretti, Assistant Professor and Extension Weed-Management Specialist, Oregon State University
Episode 17 - Watch recording
Rats, Rodenticide and Research
An overview on recent rodenticide legislation in California, rodenticide exposure of non-target wildlife and ongoing research to explore mitigation measures.
Presenter: Niamh Quinn, Human-Wildlife Interactions Advisor, University of California
Episode 16 - Watch recording
Use of Precision Applied Steam to Control Soilborne Pathogens and Weeds in Lettuce
Lettuce drop (Sclerotinia spp.) and in-row weed control are major concerns of California and Arizona lettuce growers. Soil disinfection using steam is a highly effective technique for controlling plant pathogens and weeds, but is cost prohibitive since conventionally steam is applied to the entire soil profile. To address this, a prototype band-steam was developed where only narrow strips of soil centered on the seed line are treated. The device is principally comprised of a 35 BHP steam generator mounted on a bed shaper. The system’s design and operation, as well as field trials results will be presented and discussed.
Presenter: Mark Siemens, Department of Biosystems Engineering, University of Arizona
Developing Non-chemical Harvest Weed Seed Control Strategies in Dryland Crops
Talk will cover updates on field trials evaluating how chaff lining fits into dryland cropping systems in the Central Great Plains as an integrated weed management tool. Evaluation of chaff lining weed control efficacy in wheat, corn, and grain sorghum will provide information on how this integrated weed management tactic will fit in new geographic regions.
Presenter: Eric Westra, Department of Agricultural Biology, Colorado State University
Episode 15 - Watch Recording
Increasing the Reach of IPM Partnerships Using the Adaptive Learner-Centered Education Approach
Join this session to learn how teams of Extension, farmers, and other professionals advanced two IPM initiatives in the state of Oregon utilizing the Adaptive Learner-Centered Education framework. This evidence-based approach to designing educational programs and facilitating learning engages farmers throughout the process as well as fosters the creation of sustainable IPM partnerships across stakeholder groups. Come and see how the science of adult learning can be applied within your own educational programming to increase impact within your communities.
Presenter: Mary Halbleib, Department. of Crop and Soil Science, Oregon State University
Medusahead Impacts on Livestock Production and Low-Cost Management Options
Medusahead is a widely dispersed invasive annual grass across the West with limited low-cost options for management. Here we first examine the potential economic impacts of medusahead on livestock production and then discuss the potential to use very low rates of aminopyralid applied in spring as a means to sterilize medusahead seed and increase abundance of desired plants. We show the potential for aminopyralid to reduce medusahead seed viability at management scale and pasture wide reduction in medusahead abundance. We also show how economic impacts of medusahead can change depending on grazing management decisions.
Presenter: Jeremy James, Department of Natural Resources Management and Environmental Sciences, Cal Poly
Episode 14 - Watch Recording
Expanding the IPM Toolbox for Sustainable Pear Production
Presenter: Louis Nottingham, Washington State University
Louis Nottingham discusses the outcomes from his project with Co-PIs Tianna DuPont (WSU Extension) and Richard Hilton (OSU Extension) on the development and implementation of IPM tools for pears in Washington and Oregon. The team’s research objectives have improved implementation-level strategies for reflective ground covers, particle film repellents, honeydew mechanical removal and selective insecticides, while Extension objectives facilitated industry implementation via field-days, websites, and fact-sheets.
Episode 13 - Watch Recording
Decision-Making about Pesticide Selection to Limit Risks
Presenter: Paul Jepson, Oregon State University
The Western IPM Center Pesticide Risk Reduction Work Group has been exploring continued uses for certain highly hazardous pesticides in the Western United States and elsewhere. Extension faculty, other educators and decision makers must weigh a number of factors when trying to reconcile pesticide costs and benefits, and this presents a decision-making challenge: how do costs, efficacy, resistance profile, health and environmental risks trade-off against each other, and how do available pesticides compare? We have developed a method of portraying available data as a key first step, allowing decision makers to see the tradeoffs and factor these into pesticide selection.
Educating Urban and Community Audiences about IPM and Pesticides
Presenter: Karey Windbiel-Rojas, University of California Statewide IPM Program
With more people now living in urban and suburban areas, reaching residential audiences to address managing pests is a constant challenge. UC IPM and Cooperative Extension in many Western states have focused more resources on educating these groups to help reduce environmental and human health risks caused by pests and pest management practices, especially pesticides. Efforts include the development of innovative methods to help deliver information to end users, including online training courses, how-to videos, train-the-trainer workshops, engaging audiences through social media, and ensuring accurate content on extension web sites.
Episode 12 - Watch Recording
Adapting Ectoparasite Control to Management Changes in Egg Production
Presenter: Amy C. Murillo, University of California Riverside
Description: Ectoparasites, like lice and mites, frequently parasitize egg-laying chickens. Traditional control has relied on pesticides sprayed on birds housed in cages. However, recent increases in cage-free egg production require novel ectoparasite control methods that are effective and promote good poultry health and welfare.
Ecological Principles Involved in Microbial Pest Control
Presenter: Matt Baur, Western IPM Center
Description: Here we examine several of the population and community level interactions such as competition, predation and parasitism underlying the use of microbials for pest control in agriculture. We will also talk about specific examples and how these processes shape community structure and dynamics.
Episode 11 - Watch Recording
Flowable Formulations of Pheromones for Integrated Pest Management
Presenter: Greg Montez, Suterra USA
Description: The concept of a pheromone that can be applied with standard agricultural equipment (ground or aerial sprayers) has been around for decades, but recent improvements in the technology make them easier to use, more effective and cover more pest species.
Grape Powdery Mildew Management Using an Intelligent Sprayer and Sulfur
Presenter: Brent Warneke, Oregon State University
Description: Grape powdery mildew is a perennial problem in wine grape production in western Oregon due to a long, mild growing season that favors reproduction and dispersal of the pathogen. Micronized sulfur is widely used to manage grape powdery mildew due to its low cost, efficacy, and low fungicide resistance risk. A standard airblast sprayer was retrofitted with the Intelligent Spray System, a suite of sensors and electronics that detect plant canopy and modify application volume in real time depending on the canopy density sensed. Overall the intelligent sprayer will be a useful tool for growers as they seek to reduce their chemical and water use while maintaining effective disease control.
Episode 10 - Watch recording
Topic: Spot It! Report It! Remove It! Mobilizing Residents in the Fight Against Invasive Weeds
Presenter: Qiting Chen, IPM Coordinator, City of Edmonton, Alberta
Description: Public education and awareness of invasive plant species are essential to support integrated pest management efforts in municipalities. The public plays an important role in detection, data collection and early intervention of invasive plant species. In Edmonton, efforts to engage the public in IPM activities have been ongoing and in 2019 the city launched a social marketing campaign called Spot it, Report it, Remove it. Tactics used include public outreach events, community weed pulls, door-to-door outreach campaigns, and the weed identification feature in the Edmonton 311 app. We will discuss the results and lessons learnt from the campaign.
Pesticide Regulatory Process: The Office of Pest Management Policy Perspective
Presenter: Anastasia Bodnar, USDA Office of Pest Management Policy
Description: An overview of pesticide regulatory processes from the OPMP viewpoint, including how OPMP provides agricultural context to inform EPA’s regulatory decisions, and how professionals in agriculture, including IPM coordinators, can provide input.
Episode 09 - Watch Recording
Integration of Biologicals into IPM Programs: What’s the Latest?
Presenter: Pam Marrone, Founder and CEO of Chestnut Bio Advisors
Description: More and more farmers are asking about biologicals including biopesticides, biostimulants and bionutrients as they are under pressure to increase the sustainability of their operations. This talk will talk about the latest technologies and science behind biologicals and how, as components of IPM and crop production systems, they can help reduce carbon footprint while increasing soil health and farmers’ return on investment.
Pest Threats to California Avocados
Presenter: Sonia Rios, University of California
Description: Southern California's avocado groves are under increasing pest pressure from both insects and disease. This presentation highlights key threats, ongoing research and IPM strategies for combating the Red Bay ambrosia beetle (a fusarium vector), a recent lacebug invasion and an update on the invasive shot hole borer in avocados.
Episode 08 - Watch Recording
Let's Talk Pollinator Gardening: Plan, Plant, and IPM Your Way to Successful and Beautiful Pollinator Gardens
Presenter: Danesha Seth Carley, North Carolina State University
Description: Every thoughtfully designed garden, no matter how small, can play a huge role in providing the habitat, nourishment and nesting places so needed by pollinators. This presentation will bring science and art together to guide you through building, renovating, or enhancing your garden to help foster and protect pollinators and create your very own pollinator haven. We will discuss choosing locations, selecting the best plants for pollinators, how to consider seasonality in your garden design, how IPM in your landscape can help protect beneficials in your garden and much more.
(Danesha's new book, Pollinator Gardening for the South: Creating Sustainable Habitats, comes out in March. Pre-order here)
IPM Education - Honoring and Empowering Tribal Nations and Indigenous Peoples
(Starts at 32:10)
Presenter: Lucy Li, University of Arizona
Description: The Arizona Pest Management Center Public Health IPM Team partnered with professionals and experts within the Native American communities in Arizona promoting Integrated Pest Management as a solution to reduce pest-related public health threats affecting tribal communities. We responded to the needs of tribal communities on a wide range of public health related topics, including mosquitoes, ticks and related disease-causing pathogen risks of commensal rodents. The majority of in-person events were organized and carried out on tribal lands. In addition, we are currently working with three border tribes in Arizona-Sonora Region to identify environmental health priorities and training needs related to IPM and vector-borne diseases. Lessons learned will also be shared with other tribes around the southwest region through our partner organizations, multiplying our impact.
Episode 07 - Watch Recording
Developing IPM Plans for Municipalities: Lessons Learned
In light of public pressure to reduce or eliminate pesticide use, many California cities and counties have developed IPM plans as a communication tool to assist in describing their pest management practices. Not surprisingly, IPM is commonly practiced but few people (outside of those doing the pest management work) know anything about it. Using case studies, common pitfalls and solutions will be presented.
Presenter: Mike Blankinship, Blankinship & Associates
Assessing non-target impacts to plants from basal bark treatments of Prunus padus in Alaska
Prunus padus, an invasive tree in boreal forests of Alaska, is often targeted with basal bark treatments to limit non-target damage to plants, but non-target damage is still observed after careful application. This research focuses on quantifying the occurrence of herbicide damage to non-target vegetation from applications of aminopyralid and triclopyr-butoxyethyl ester.
Presenter: Gino Graziano, University of Alaska, Fairbanks
Episode 06 - Watch Recording
Revegetating Weed-Infested Rangeland
Seeding desired vegetation to compete with weeds is sometimes necessary when weeds have dominated rangeland for many years and remnant vegetation is scarce. This presentation will share research results from a variety of Montana studies where seeding was integrated with other weed-control strategies.
Presenter: Jane Mangold, Montana State University
The Cooperative Agriculture Pest Survey Program
A review of the Plant Protection and Quarantine system for plant Pest Surveillance. Find out how you can help and want resources are available to support early pest detection.
Presenter: John Crowe, USDA APHIS
Episode 05 - Watch Recording
Ecological Management of Kochia in Irrigated Western Cropping Systems
Description: This presentation will highlight on how to best implement sustainable integrated weed management programs to reduce herbicide reliance and manage weed resistance to herbicides in sugar beet-based crop rotations of the Western United States.
Presenter: Prashant Jha, Associate Professor and Extension Weed Specialist, Iowa State University
The Intersection between IPM and Pesticide Safety Education
Description: With the recent addition of pesticide safety education to the IPM Roadmap, a group of pesticide safety education program coordinators envisions a future in which the two groups work together to reach a wider audience, benefiting both communities. ?
Presenter: Lisa Blecker, Coordinator, Pesticide Safety Education Program, UC Statewide IPM Program
Episode 04 - Watch recording
Schools in the Time of COVID: More Questions than Answers
Presenter: Shaku Nair, University of Arizona:
A Developing and Developed Countries Perspective on Implementation of Integrated Weed Management
Presenter: Anil Shrestha, California State State University
Response from an Extension Entomology Irrigated Crop Faculty to a New Era of Research and Educational Delivery
Presenter: Silvia Rondon, an extension entomology specialist at Oregon State University
Adapting an extensive research program to the limitations imposed by the COVID-19 pandemic.
Finding Needles in Haystacks: Inoculum Monitoring as a Decision Aid
Presenter: Walt Mahaffee, a research plant pathologist with the USDA Agricultural Research Service
Traditional scouting for disease is a difficult and time consuming process with a low probability of detecting disease early in an epidemic. Monitoring of airborne inoculum can be used as decision aid to guide producers in when to initiate fungicide application and adjust application intervals. We are also now show this technology can be used to monitor for fungicide resistance. The talk will cover from how producers were convinced to gamble on the concept to forming coops to keep the information flowing.
Engaging the Next Generation via Beneficial Insects: Sustainability, Biocontrol and Community Engagement
Presenter: Stephanie Bolton, Research and Education Director and Sustainable Winegrowing Director?, Lodi Wine Commission
Description: Beneficial insects used to be a major form of pest control in farming, but the invention of affordable and efficient plant protectant materials made some of us forget their value. In Lodi, California, farmers are working to identify and repopulate beneficial insects in their vineyards and are successfully using this regional effort as a fun way to engage children and the public in sustainable agriculture.?
Advancing Use of Key Integrated Pest Management Practices in Schools
Presenter: Alec Kowalewlski, Associate Professor, Oregon State University
Description: The results of our work indicate that a training program for school IPM coordinators developed with attention to key components - including on-site learning, continued needs assessment, and supporting resource materials - has fostered increased adoption of important IPM practices.?
Insect Pest Monitoring with Directional LED Lights
Presenter: Kai Umeda, Area Extension Agent, Turfgrass Science, University of Arizona
Description: This seminar will present a new design for an insect light trap that uses directional LED lights. Developed by Spectron Lab in Phoenix, the new LED light trap will potentially offer all crops and pest management systems monitoring capabilities for most flying insect pests (cutworms, webworms, armyworms and beetles) with specific numbers without the laborious and “stinky” separating and counting. A planned new feature of the collection container is an electronic counting mechanism that can identify the trapped species. Equipped with electronic communications capabilities, the trapped species numbers can be transmitted to a nearby smartphone or to the “cloud” where cumulative data for a network of traps can be collated to provide an area-wide dataset of insect pest activity.?
Riparian Restoration along the Little Colorado River
Presenter: Ian Torrance, National Restoration Director of the American Conservation Experience
Description: The Little Colorado River Valley Conservation Area spans 16 miles of intermittent river and includes almost 17,000 acres south of Cameron, Arizona. Restoration efforts embrace a locally driven approach to restoring degraded riparian habitat that can be adopted by other regional land managers and organizations. Goals of this project include mitigation of invasive plant competition, creating open space for native plant recruitment and plantings, protecting remnant cottonwood stands from wildfire, and enhancing wildlife refugia. Project-related benefits include monitoring data that will inform successful land management strategies while proactively dealing with the challenges encountered on this rugged, hot and dry project site.
Be a Presenter
To present during a future episode of The IPM Hour, send an email with your name, presentation title or topic and a one-sentence description, and the months you would be available.