Recent Sessions Tagged With 'horticulture'

View All horticulture sessions

Displaying 16-30 of 52

Powdery mildew: Biology & Management in the Garden

Monday, April 16, 2018 at 2:00 pm EDT - Presented by Jay Pscheidt

This webinar is part of the Spring 2018 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University ExtensionProbably best known for making our squash leaves white, powdery mildew is an ever-present plant disease in the home garden. Dr. Jay...

Identifying & Managing the Bronze Birch Borer

Monday, March 12, 2018 at 2:00 pm EDT - Presented by Nicole Sanchez

This webinar is part of the Spring 2018 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University ExtensionThe Bronze Birch Borer is a wood-boring beetle spreading across the Pacific Northwest that can devastate landscape plantings of...

Hybridization and Tetraploids and Chromosomes, Oh My! Understanding Plant Breeding for Disease Resistance

Monday, February 12, 2018 at 1:00 pm EST

This webinar is part of the Spring 2018 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University ExtensionChoosing a plant with disease resistance is one of the tools in a gardener’s Integrated Pest Management toolbox. In this session,...

Frontiers in Slug & Snail Management

Monday, January 29, 2018 at 2:00 pm EST - Presented by Rory Mc Donnell

This webinar is part of the Spring 2018 series of Advanced Training Webinars for Master Gardeners sponsored by Oregon State University ExtensionParticipants will learn the basics of identification of slug and snail species in home landscapes. Dr. Mc Donnell will cover current...

Would you choose an alternative landscape? Understanding the effects of visual appeal and maintenance requirements

Friday, December 8, 2017 at 1:00 pm EST

Presenter: Hayk KhachatryanIt is well documented that in the past several decades, urban sprawl in the U.S. has substantially increased the area of extensively landscaped residential areas. Previous research showed that Florida homeowners consider well-maintained urban...

Fall cankerworm biology, ecology, and management in urban and rural landscapes

Wednesday, October 4, 2017 at 1:00 pm EDT

This webinar will discuss the biology, ecology, and management of the native fall cankerworm. Management strategies in the urban and rural environment will be covered. The fall cankerworm, Alsophila pometaria, is a moth native to North America whose caterpillars are commonly...

Status of Boxwood Blight in Oregon

Tuesday, October 3, 2017 at 4:00 pm EDT

Part of the 2017 Oregon Master Gardeners Advanced Training series. Boxwood blight continues to be a problem in more landscapes and nurseries in the PNW. Learn about where this fungal disease has moved to, how to recognize it from other disease problems and run a model to...

Japanese Beetles in Oregon

Tuesday, September 19, 2017 at 4:00 pm EDT

Part of the 2017 Oregon Master Gardeners Advanced Training Series. In 2016, Japanese beetles were trapped in high numbers in the Portland area. The Oregon Department of Agriculture is working to eradicate Japanese beetle hot spots in Portland, and OSU Extension is helping with...

Urban Trees and Stormwater Management – Transitioning from Gray to Green

Wednesday, September 6, 2017 at 1:00 pm EDT

Trees offer a range of ecological benefits that include, but are not limited to, the reduction of stormwater runoff. As cities grow or redevelop, there are opportunities to reduce reliance on traditional gray infrastructure elements (e.g., drains and pipes) through the use...

Never doubt how a small, thoughtful and committed pollinator habitat (in your garden) can change the world

Tuesday, September 5, 2017 at 4:00 pm EDT

Part of the 2017 Oregon Master Gardener Advanced Training Series. Pollinator populations are under stress from all sides. Be it from habitat loss and fragmentation, pesticide exposure, or the spread of new diseases, pollinators face many challenges. The good news is that these...

Managing the Brown Marmorated Stink Bug with biological control

Tuesday, August 22, 2017 at 4:00 pm EDT

Part of the 2017 Oregon Master Gardener Advanced Training series. Ongoing efforts to manage Brown Marmorated Stink Bug (BMSB) in the Pacific Northwest will benefit from the arrival of the samurai wasp, a specialist parasitoid of BMSB eggs. This presentation will identify...

Organic Pesticides for Home Gardens

Tuesday, August 15, 2017 at 4:00 pm EDT

Part of the 2017 Oregon Master Gardener Advanced Training series. In this advanced pesticide course, the presenter will discuss the breadth of organic pesticides available for home gardeners, and what makes them "organic." Topics covered will include insecticides,...

Tree Risk Assessment – Perceptions, Reality, and Reliability

Thursday, April 13, 2017 at 1:00 pm EDT

How safe is this tree? It’s a critical question that demands an accurate answer, butassessment is not always straightforward. Learn to avoid the pitfalls of tree riskassessment as Dr. Koeser highlights sources of variation and potential bias when rating a tree’s likelihood of...

Avoiding and Remedying Abiotic Injury of Trees

Tuesday, March 14, 2017 at 2:00 pm EDT

Marion Murray, Utah State UniversityA large percentage of urban trees are affected by abiotic stresses and diseases such as drought, nutrient deficiency, and poor pruning practices. Learn about the effects these stresses have on trees and how to diagnose and mitigate...

The use of compost as soil amendment and its implication in vegetable crop health in Puerto Rico (Presented in Spanish).

Wednesday, December 14, 2016 at 1:00 pm EST

In Puerto Rico there is an increased interest and demand for the use of compost in commercial horticultural industries. However, there is a lack of information for growers on how to utilize effectively compost, which can supply sufficient nutrients to the crop but can...