Author

Jon Dukes

In Sacramento, California, Jon Dukes writes on plant health for Biology Insights. An Extension Master Gardener with 26 years of horticulture experience, he spent decades managing pest diagnosis in commercial nurseries. Dukes continues to staff a weekly county diagnostic clinic, identifying tree diseases and garden pests for local residents.

Why Is My Potentilla Shrub Dying and How to Save It?
Why Are My Viburnum Leaves Turning Brown and Falling Off?
Why Is My Pine Tree Dying From the Top Down?
How to Revive a Dying Azalea Plant
Why Are the Leaves on My Lilac Bush Turning Brown?
Why Are My Oleander Leaves Turning Yellow?
Why Are My Nandina Leaves Turning Brown?
Why Are My Azaleas Turning Yellow?
Why Are My Rhododendron Leaves Turning Brown?
How to Save a Rhododendron: Diagnosing & Fixing Problems
Is My Butterfly Bush Dead? How to Tell and What to Do
Why Is My Evergreen Turning Brown in the Summer?
How to Treat Brown Spots on Azalea Leaves
What Kills Lilac Bushes? Diseases, Pests, and Mistakes
Why Is My Butterfly Bush Dying?
Why Is My Texas Sage Not Blooming?
Why Are My Hibiscus Leaves Turning Yellow and Falling Off?
Why Are My Magnolia Leaves Turning Brown?
Why Are My Hydrangea Leaves Turning Brown and Crispy?
Why Do Pine Needles Turn Brown?
What Does an Overwatered Arborvitae Look Like?
Why Is My Blue Point Juniper Turning Brown?
What Are the Signs a Forsythia Bush Is Dying?
Why Did My Nandina Lose All Its Leaves?
Why Are My Butterfly Bush Leaves Turning Yellow?
What’s Wrong With My Emerald Green Arborvitae Leaves?
Why Is My Rhododendron Sneezy? Causes and What to Do
Why Is My Leucadendron Dying? And How to Save It
Why Are My Plumeria Leaves Yellowing and Falling Off?
Why Are My Camellia Leaves Turning Yellow?