UCNFA Online Newsletter
UCNFA News is a periodic online publication focusing on issues and new research in subject areas of interest to the nursery and floriculture industry.
The heavy winter storms that persisted this past winter and spring brought welcome rains that filled reservoirs and aquifers. However, these conditions also optimized conditions for the “water mold” Phytophthora that is capable of rotting roots and killing many types of ornamentals and native plants. Phytophthora includes several species that are typically often found in nurseries and two new exotic species, P. ramorum and P. tentaculata. All species are capable of causing widespread damage, especially if diseased plants are outplanted in wildland and forest areas. Three feature articles are included in this issue lead by Sims, Tjosvold and Downer on various aspects of Phytophthora and its control, as well as management of other root diseases. Moreover, a new disease, boxwood blight, has been discovered in Bay Area landscapes and is described in Tjosvold’s Regional Report.
♦ Steve Tjosvold and Julie Newman
In This Issue
Summer 2017 Edition (Volume 21, Issue 1)
Phytophthora in Restoration and Forest Nurseries
by Laura Sims and Matteo Garbelotto
Phytophthora Crown and Root Rot Symptoms and Detection
by Steve Tjosvold, Laura Sims, and Matteo Garbelotto
Monitoring electrical conductivity of irrigation water and rooting media
by Donald J. Merhaut
UCCE Regional Report Santa Cruz and Monterey Counties
CDFA Nursery Advisory Report
CDFA Nursery Advisory Board Report Summer 2017
by Loren Oki