The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak, and Oregon oak. The beetle is spreading rapidly in Napa, Lake, Sonoma, and Sacramento Counties and has been detected in neighboring El Dorado, Yolo, and Mendocino…
Integrated Pest Management--Managing pest with environmentally sound methods, and answers to your "bugly" problems. Come and hear about multiple techniques for effective pest control that are the least toxic. Discover methods to keep bad pests away and encourage beneficial insects, all…
Are you brand new to gardening, but have a burning desire to learn proper practices? Have you had some gardening experience, but not much success achieving healthy plants? Plan to attend MG Sheri Burke's free public education class on "Back to Basics.
Dive into the world of container gardening with Master Gardeners. Learn everything you need to know to create a thriving container garden in any space – from choosing the right container, to plant selection and planting techniques, and the how to-s of container plant care.
2025 Spring Plant Give and Take The Plant Give and Take event is a FREE event for all community members to exchange plants and other garden items, presented by the Merced Colony Grange with volunteer help from UC Master Gardener Program of Merced County.
Want to learn how to manage pests without pesticides? In this webinar we will review nonchemical pest management practices as alternatives to pesticides in the home and garden. Visit the Urban and Community Webinar website to learn more about this webinar series.
Learn how to successfully grow two of the most popular garden vegetables: tomatoes and peppers. Topics covered will be how to plant seedlings in the garden, methods of pruning and training growing plants, and diagnosing and resolving problems including pests.
Armillaria root rot, also known as Oak root fungus, is a disease of many different plants. There is no known effective cure. Root rot fungus disease of trees and woody plants. Affects palms, succulents, ferns and other herbaceous plants like begonia, daffodil, dahlia, and geranium. No…
Seedlings sometimes fail to sprout or die soon after. Seeds may rot before germinating, shoots may decay before they emerge, or stems of seedlings may be attacked near the soil line, causing young plants to collapse. These diseases are collectively called “damping off,” likely caused by a number of soil…
Downy mildews, including Peronospora and Plasmopara spp., are pathogenic water molds (oomycetes) that primarily damage foliage. Hosts include cane berries, roses, various herbaceous ornamentals, and many fruit, grain, and vegetable crops. CategoryFungiSigns/SymptomsDowny mildew causes pale green to…
