Our arborist advice section is the most extensive expert collection of tree, lawn and landscape care tips and educational resources that you will find anywhere.
Follow this summer checklist to keep your trees and landscape healthy by identifying potential issues.
A fungus that discolors spruce needles and causes premature drop, especially in overly wet conditions.
The California oakworm is one species of caterpillar that feeds on oak trees.
Caterpillars feed on the leaves of oak trees and other species. Found on the Pacific coast.
This disease causes holes in the leaves which start as brownish spots them dry and fall out.