This seminar presented research on utilizing root leachate to stimulate microbial activity in soil organic matter deficient soils in bell pepper and cantaloupes. Click the link below for resources from this seminar.

This webinar discussed rhizosphere effect and priming it. Click the link below for resources from this seminar.

This webinar discussed an updated understanding of non-traditional plant nitrogen acquisition pathways and mechanisms. Click the link below for resources from this seminar.

This webinar covered the core aspects of organic certification and all that is needed to get and maintain organic certification. Click the link below for resources from this seminar.

This seminar focused on strategies, tools and methods commonly utilized in "mechanized" small-scale systems for dealing with crop competitive annual and perennial weeds.  Click the link below for resources from this seminar.

While plastic mulch reduces weeds, disease, and increase yields, it can also create problems with runoff and soil erosion during rainy winter periods. One solution to solve this environmental problem is to grow cover crops in furrows between beds. Click the link below for resources from this seminar.

This seminar focused on common raptors that contribute to biological control of pests on farms, managing infrastructure to support raptors, including considerations for design, placement of nest boxes and perches to increase occupancy & biological control. Click the link below for resources from this seminar.

This webinar focused on weed management strategies for small-scale and organic vegetable farmers, and presented a set of practices that can greatly assist growers in managing weeds effectively. Click the link below for resources from this seminar.

In his presentation Daniel addresses the biology of thrips and developing solutions to minimize the impact of thrips and impatiens necrotic spot virus, which has emerged as the number one concern for the California lettuce industry. Click the link below for resources from this seminar.

This talk presented findings on alternative carbon substrates for anaerobic soil disinfestation (ASD) and survival of Fusarium oxysporum in ASD-treated soils. Click the link below for resources from this seminar.

This seminar discussed how breeding can be done today, who can use what germplasm for which purpose, and how to reclaim a seed commons. Click the link below for resources from this seminar.

In his presentation Alejandro addressed concepts related to IPM, including the definition of IPM, suggestions on how to scout; and he also discussed the most frequently encountered pests and beneficials in your organic crops. Click the link below for resources from this seminar.

This talk describes research on the use of biofumigant crops for nematode management and explores opportunities to use biofumigant cover crops or residues of winter cole crops for soilborne disease, soil health, and nutrient management in vegetable crops. Click the link below for resources from this seminar.

This seminar covered some basics of organic nitrogen management and how plant-available nitrogen is released from various organic fertilizers and composts through a biological process called mineralization. Click the link below for resources from this seminar.

This seminar shared research information about when and to what extent the benefits of Mycorrhizal fungi are seen in California vegetable systems. Topics discussed included multiple ways different management practices could support (or not!) mycorrhizal fungi, from inoculation to soil health practices like cover cropping and reduced tillage. Click the link below for resources from this seminar.

This seminar describes the steps taken to discover, import, screen and develop petitions to release a novel bio-control agent into the US to help suppress the spotted wing drosophila. It also describes the potential levels of parasitism expected, and the administrative process to get material approved for field release.

This webinar covered organic soil fertility management strategies for small-scale organic vegetable farmers. Topics included management of major and minor plant nutrients including nitrogen, phosphorus, and potassium, and crop fertility inputs. The talk also covered fertility management based on soil test results and accounting for nitrogen in irrigation water. Click the link below for resources from this seminar.

This webinar focused on weed management strategies for small-scale and organic vegetable farmers. Topics included seedbank management, using tarps and flame weeding, physical weed control options, hand tools, cultivation tool stacking, and optimization of tools. Click the link below for resources from this seminar.

This seminar covered greenhouse seedling production with a focus on system efficiencies. Drawing on decades of experience with organic seedling production, Christof addressed automated watering, seeding methods and expediting germination, soil quality and fertility, container choices and more. Click the link below for resources from this seminar.