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Robin's pin cushion, also known as rose bedeguar gall, is an harmless growth caused by a species of gall wasp (Diplolepis rosae) it is part of the biodiversity

The variety of living organisms (plants, animals, fungi and microorganisms) in a particular environment. Boosting the biodiversity of your garden has many benefits, including supporting wildlife, improving soil health and reducing the likelihood of pest and disease problems. roses support. The adult wasp lays eggs in the buds

A bud is a small, undeveloped shoot that contains the potential for new growth. Buds are typically found on stems, where they can be apical (found at the tip) or axillary (found between leaf axils) and may develop into leaves, shoots or flowers. or developing leaves during mid-summer period. The eggs hatch into small white larvae that secrete chemicals that cause the abnormal growth.

Instead of buds developing into normal shoots and leaves, they are converted into hard woody structures that have an outer covering of moss-like leaves, which are either reddish pink or yellowish green. The internal part of the gall contains a number of chambers in which the grubs develop. The galls are fully developed during August and the insects overwinter inside the galls as pupae. During the autumn the outer covering of moss-like leaves tends to decay and this leaves the hard woody centre exposed.

This insect is more frequently found on wild roses or sucker

Suckers are growths that appear from the root systems of many trees and shrubs such as lilac, cherries, Robinia. On grafted plants such as roses, suckers can grow from below the graft union, on the rootstock material. Suckers are usually removed by gently pulling off when young. growth but it does also occur on some of the rose species grown in gardens. The feeding activities of the gall wasp grubs do not have any real adverse effect on the rose, apart from creating the galls.

There are more than 900 plant gall forming animals in the UK, including mites, beetles, flies, gall wasps, plant sucking bugs (psyllids), aphids and sawflies.

The encourages and co-ordinates the study of plant galls in the British Isles.

The galls are not harmful to the rose and part of the biodiversity

The variety of living organisms (plants, animals, fungi and microorganisms) in a particular environment. Boosting the biodiversity of your garden has many benefits, including supporting wildlife, improving soil health and reducing the likelihood of pest and disease problems. roses support so no action should be taken.