Author

Jon Dukes Page 3

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 Are the Leaves on My Mandevilla Turning Yellow?
What Is Wrong With My Hibiscus? Diagnosing the Problem
Why Are My Dahlias Turning Brown?
Why Do My Flowers Have Mold and How Do I Fix It?
Why Are My Zinnia Flowers So Small?
Why Does My Lavender Look Dead?
What Does an Overwatered Gardenia Look Like?
How to Treat and Prevent Rose Transplant Shock
Why Are My Marigold Leaves Turning Purple?
How to Treat Rose Rosette Disease
Why Are My Hydrangea Flowers Turning Brown?
Why Is My Clematis Wilting? Causes and Solutions
What Is Rose Rosette Disease (RRD) and How to Manage It?
Why Are My Roses Turning Brown?
Amaryllis Bulb Rot: How to Prevent and Treat It
Why Are My Azalea Leaves Turning Yellow?
Gardenia Transplant Shock: How to Prevent and Fix It
Why Are My Poinsettia Leaves Turning Black?
Why Are My Begonia Leaves Turning White?
Why Is My Bougainvillea Losing Leaves?
Why Are There Brown Spots on My Gardenia Leaves?
Why Are My Violas Dying? Common Causes and Fixes
Why Are My Geranium Leaves Turning Yellow and Red?
Why Are My Gardenia Leaves Drying Out?
Common Problems With Gazania and How to Fix Them
What Causes Black Leaves on Dahlias?
Why Are My Marigolds Wilting? And How to Revive Them
Why Is My Hibiscus Wilting? Common Causes and Fixes
Why Are My Zinnia Leaves Curling and How Do I Fix It?
Common Nasturtium Problems and How to Handle Them