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David O.

Master Gardener / Retired Biology professor

trees and shrubs fruits and vegetables wildflowers and native plants lawns and turf indoor gardening sustainable gardening and landscaping landscape design master gardener program insect issues disease issues weed issues horticulture flowers: annuals and herbaceous perennials soil and fertility issues

Expertise Locations

Pennsylvania

Entire state

Assigned Questions

Non-baring fruit trees

Answered Questions

Fig tree rot

Hybrid trees

Drought damage to conifers

Strange bark pattern

What is the name of a tree with large leaves and long thin pods but it's not a catalpad what other t

Orange yellow huge mushrooms

Nest in tree

Why when they were acorn squash seeds ?

Dogwood trunk

100 ft pine trees