Organic Agriculture Seminar Series for Growers
Agenda and Recordings
(Scroll down for presentation recordings and summaries)
January 26 - May 4
Tuesdays, 12 - 1 PM via Zoom
Please join us for a weekly lunch time seminar. We’ll be joined by a guest each week for a 30 minute presentation then open up the conversation for questions from the listeners.
Zoom info will be the same each week.
Spots and stripes two bandits of the west! Ecology and a new aggregation pheromone of cucumber beetles.
Meeting ID: 955 0709 0502
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**If you would like the zoom link and info to automatically appear in your calendar, please download the following link. We will be using the same link each week.
Bagrada Bug Community Forum
Andrew Brait, Full Belly Farm
Paul Underhill, Terra Firma
Bagrada bug is an emerging invasive stink bug pest in California, which preferentially feeds on plants in the mustard family (i.e. broccoli, kale, cauliflower, cabbage). It is a sucking insect and can cause severe yield losses, especially when it attacks young plants. On January 12, 2021 UCCE hosted a forum for Yolo, Sacramento, and Solano county organic growers to discuss their experiences with fighting bagrada bug. Paul Underhill and Andrew Brait led the discussion.
Evaluating Biochar for Use in California Agriculture
Dani Gelardi, UC Davis
Jan 26, 2021
Biochar is often described as a silver bullet for increasing agricultural production while decreasing environmental impact. Due to its unique properties, biochar has the potential to address many pressing agricultural challenges, including fertilizer pollution, yield decline, vulnerability of soils to drought, depleted soil carbon stocks, waste management, and dependence on fossil fuels. Despite increased interest and investigation, there remain many questions about whether or not biochar can address these issues. In this 30-minute talk, Dani Gelardi will cover the basics of biochar: What is it? How is it made? What can it do? She will then review recent research from the UC Davis Environmental Chemistry Lab to illustrate how the basics may or may not apply to agricultural systems in California.
Insect Pest Management in
Organic Field and Vegetable Crop Production
Rachael Long, UCCE
Feb 2, 2021
This talk will focus on managing insect pests in organic field and vegetable crop production, including thrips, aphids, stink bugs, seed corn maggot, and more. Discussion will include the importance of good agronomic practices, healthy soils, and biodiversity practices that favor natural enemies, for enhanced pest control on farms.
Plant Defense Mechanisms Part 1:
Induced Disease Resistance and Plant Activators
Rick Bostock, UC Davis
Feb 9, 2021
Plant Defense Mechanisms Part 2:
How Soil Microbes Defend Plants from Insect Pests
Amelie Gaudin, UC Davis
Feb 16, 2021
Dr. Gaudin's Publication:
The ABCs of Keeping Produce Fresh and
Nutritious after Harvest
Feb 23, 2021
UC Cooperative Extension Specialist for Postharvest and Director of the Postharvest Technology Center at UC Davis
Dr. Mitcham’s talk will review how to determine the best time to harvest your vegetable crop. She will also discuss recommended practices to maintain quality after harvest including cooling and packaging.Presentation Recording
Nutrient Management Planning for Orchards
March 2, 2021
UCCE Orchard Systems Advisor for Yolo, Solano, Sacramento Counties
Join Dr. Katherine Jarvis-Shean as she discusses nitrogen, potassium and micronutrient needs and considerations in fruit orchards, primarily stone fruit, in our Yolo-Solano Counties context.Presentation Recording
Asking the Plant to Tell You When It Needs Water
March 9, 2021
Professor of Pomology at UC Davis
When plants are thirsty they typically respond by using less water and being less productive. However, depending on the crop and the timing of the stress, this response may have beneficial economic or horticultural side effects. This talk will explain how water stress is measured, and will show some examples of how these measurements have resulted in more optimal irrigation management.
Spots and stripes: two bandits of the west!
Ecology and a new aggregation pheromone of cucumber beetles
Jasmin Ramirez Bonilla
UC Davis Department of Entomology
March 16 , 2021
This talk will cover the biology, ecology, and a new aggregation pheromone for the western striped cucumber beetle and western spotted cucumber beetles. Both species are considered key pests of fresh-market melons in Northern CA.
Managing the leaf microbiome for crop health and productivity
Professor of Ecology UC Berkeley
March 23, 2021
Some microorganisms live in high numbers on the leaves of all plants. These microbes, called epiphytes, play important roles in plant health and productivity - both by causing disease, but also by inhibiting disease. Professor Lindow will talk about the nature of the leaf surface and focus on the processes by which these epiphytes immigrate to newly developing plants from other plants nearby. His talk will also address the large effect of agro-ecological practices on plant microbiology, such as the role of cover crops and the local diversity and abundance of nearby vegetation on establishing beneficial microbes on crop plants.