Seasonal Management: Landscape Trees
Tree Care Management Calendar
Fall (Sept.-Nov.)
Pests
- Boring insect control: trunk insecticide applications on oak and pine trees
Diseases
- Sudden oak death fall treatment applications (Oct.-Dec)
- Sycamore anthracnose fall treatment
- Pitch canker fungicide application (Pine trees)
- Shot hole fungus control of fruit trees
- Peach leaf curl (1st. application)
Other
- Root zone fertilizer application
- Mulch all trees and shrubs
- Adjust irrigation system
- Plant new trees and shrubs
Storm preparation
- Pre-Winter safety assessment
- Prune dead and diseased branches before winter storms
- Thin branches to allow air movement through dense canopies; this procedure is best performed in summer through early fall for coast live oak trees.
- Cable trees with branch defects
Winter (Dec.-Feb.)
Pests
- Fruit tree dormant oil spray for aphid, scale and mite control
- Dormant oil spray other landscape trees
Diseases
- Fruit tree disease spray (see fruit tree calendar)
- Pitch canker fungicide application
Other
- Inspect tree canopies for branch defects
- Make sure irrigation system has bee drained and is turned off
- Prune conifer trees
- Prune fruit trees (see fruit tree calendar)
- Root zone fertilizer applications
