Help us achieve our goals:
make a donation »
Join the RHS today and
support our charity
Free personalised gardening advice
RHS members get reduced ticket prices
RHS members get free access to RHS Gardens
Reduced prices on RHS Garden courses and workshops
A magical gift that grows all year
020 3176 5800
Mon – Fri | 9am – 5pm
Make a donation
Join the RHS today and support our charity
I have forgotten my password
Keep me signed in
Register for free to receive our newsletters, add comments to blogs/articles and to save content.
See what events are on near you and browse your bookmarked pages.
Aquilegia gall midge can have a serious effect on the ability of aquilegia to produce healthy flowers. First reported in Britain in 2009, the midge is becoming widespread in England.
Aquilegia gall midge is a tiny fly that lays eggs on the developing flowers buds of aquilegia. During May and June the feeding activities of the larvae inside flower buds result in distorted flowers that fail to fully open.
If the foliage of your aquilegia appears normal but the flowers are swollen and distorted aquilegia gall midge is almost certainly to blame. Numerous pale orange or white maggots, 2-3mm long, may be found inside the buds.
There is currently no control for this insect other than the removal of infested flower buds before the larvae have completed their feeding. Damage by this insect comes to an end by during June. This midge is specific to aquilegias and will not affect any other plants.
As it is a relatively new insect in the UK, little is known about its biology. However, it is specific to aquilegias and will not affect any other plants. It has one generation a year. Adults emerge in the spring and lay eggs on the developing flower buds. The larval feeding period is likely to be short, occurring over a few weeks in May and June, after which the maggots drop down into the soil to pupate.
Agapanthus gall midge Aquilegia downy mildewAquilegia sawfly Blackcurrant gall midge Hemerocallis gall midge Pear midgeRobin's pin cushion
the RHS today and get 12 months for the price of 9
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
Register for the site or sign in to share your experiences on this topic and seek advice from our community of gardeners.
We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.
Join the RHS today and get 12 months for the price of 9