 Phytophthora root diseases (Phytophthora spp.) Phytophthora is a leading cause of tree and shrub death in Southern California gardens. Phytophthora diseases have a very wide host range. Citrus gummosis, avocado root rot, and azalia wilt are just a few of the many diseases caused by Phytophthora. Symptoms of Phytophthora root rot include wilting and leaf chlorosis, reduced leaf size, overall stunted growth, twig an branch dieback, and ultimaletly, tree and shrub death.
Phytophthora spp. are a collection of mostly soil inhabiting microscopic-sized water mold fungi.* They kill plants or reduce reduce vigor by damaging roots and girdling stems. Phytophthora diseases are managed by a combination of chemical and cultural practices. Because Phytophthora thrive in water saturated soils, strict water management is an essential part of an effective Phytophthora prevention program. Smaller Leaf size is a symtom of Phytophora 
Make an appointment with the tree doctors at Mitchell Pest Control, Inc., to evalualte trees and shrubs at risk of Phytophthora root diseases. Thin canopy symptom of Phytophora 
|
|
 The Coast Live Oak-(Quercus agrifolia) is a spectacular heritage tree that is protected in many cities in Southern California. It can tolerate heavy clay soil, but in urban setting it perfers well drained soil due to urban irrigation systems. Coast Live Oak trees are fast growing when young then slow down with age. They are long lived trees that can live over 300 years old. 35-45ft in height and with a spread that can go to 80ft. Coast Live Oaks are an exelent shade tree but do require space. When grown in an open setting, Quercus agrifolia's limbs will grow laterally all the way the the ground. In urban setting the canopies are usually lifted up to avoid objects like walls, pedestrians, and buildings.
Coast Live Oak Propagation Coast Live Oaks drop their acorns in the fall and are viable when they are brown and shiny. This is the best time to plant the acorns in a one gallon can. The acorn needs to only be barried half way to prevent rotting. This is a great project for children. Then place the containers in a semi shaded area and watch them grow. Once the trees are a couple of feet high it can be moved into full sun. Coast Live Oak Acorns 
Pruning Coast Live Oaks Coast Live Oak trees need little pruning in naural setting, but in urban setting the will need to be pruned. They should never be heavily pruned and when pruning is needed it should be done in the summer time. Fall pruning is not recomended. Coast Live Oak Foliage 
|
| Mitchell Pest Control, Inc. has been the Plant Health Care Professional since 1947. We are proud of our 60 years of experience in Southern California providing solutions to insect and disease problems of ornamental trees and shrubs.
Our Services Include: Disease and Insect Diognosis, Arborist Reports, Tree Spraying, Deep Root Fertilization, and Soil Injection. |
|
|