I HAVE A WHITE/GREY POWDER-LIKE RESIDUE ON THE LEAVES OF MY PLANTS; WHAT IS THIS?

It sounds like powdery mildew, a fungus that is a frequent problem for plants in the Pacific Northwest. There are numerous strains of powdery mildew and they can be on fruit trees as well as a variety of ornamentals. If the disease is severe, foliage becomes stunted, curled, distorted and will fall off.

WHAT CAN I DO TO AVOID THIS PROBLEM?

To help prevent or lessen this disease you should prune and thin your plants for better air and light circulation. Remove diseased leaves and clean up fallen leaves and destroy them; do not compost them. Also avoid watering plants from above.

Many plants require regular treatments to prevent powdery mildew. If you would like more information on how we can help, please give us a call.

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