What is that mossy pincushion on my rose leaves?


These orange, moss-covered looking growths appear on rose leaves in June and July and are caused by the gall wasp. Each is a mass of cells which contain one gall wasp larvae which will hatch in the spring. Gall wasps likw to eat aphids. They don't do any harm and can be cut off.

Browse Gardening and Landscaping Stories on Houzz See all Stories
Gardening Guides Great Garden Combo: 6 Beautiful Plants for a Shady, Wet Site
Transform a shade garden with moisture-loving golden grasses, textural leaves and a sprinkling of flowers
Full Story
Gardening for Butterflies Great Design Plant: Thunder and Lightning for Midsummer Garden Color
Get over the mouthful of a name; focus on the dramatic foliage and gorgeous magenta flowers of Thunder and Lightning field scabious
Full Story
Decorating Guides From Queasy Colors to Killer Tables: Your Worst Decorating Mistakes
Houzzers spill the beans about buying blunders, painting problems and DIY disasters
Full Story
For more than twenty years, Steadfast Construction has been setting the standard for excellence as a custom... Read More