The larvae of this gall midge develop inside the individual flower buds or inside the closed flower head sheaths of Agapanthus. It causes flower buds to deform, discolour and sometimes fail to open. The feeding activities of the larvae inside the buds cause abnormal bud development and infested buds usually fail to open. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, General enquiries Keep your agapanthus growing strongly with regular feeding and watering and they will shrug the little blighters off. According to the RHS the agapanthus gall midge is a tiny fly that lays eggs on developing flower buds. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. The agapanthus gall midge (Enigmadiplosis agapanthi) is a recently described fly (Diptera: Cecidomyiidae), with Agapanthus as it’s only known host. It now appears that it has invaded our garden, although thankfully not all flowers are affected. We have been advised to remove the flower heads if the gall midge is attacking the plant. Stakeholder led research and awareness will help to determine its distribution and consider suppression options. Maggots can be found inside the buds. Agapanthus midge « 1 2 » Go. This means that focussed control may be difficult. (Agapanthus gall midge) 'Feeds on' Interactions (host, prey,substrate): ( Published interactions where [agapanthus gall midge] controls and gains from the interaction ) Interactions where [agapanthus gall midge] is the controlling partner and gains from the process A new pest has become apparent since as recently as 2014. You can recognise the bloated flower heads once you know what you are looking for. It was first noticed in the UK in 2014 but may have been present for several years. As the larvae develop inside the plant tissue it is likely to be very difficult to target them with spray controls. The midge has only been recorded on Agapanthus. “Agapanthus gall midge is a new species of fly affecting Agapanthus that can cause buds to become deformed and discoloured and fail to flower. The midge larvae form galls in the flower buds, deforming them and stopping their flowering. If the foliage of Agapanthus appears healthy but the flowers are abnormal in the ways described below, then agapanthus gall midge is most likely the cause: Currently control measures attempt to interrupt the pest's life cycle: The RHS is currently researching potential pesticide and biological controls. RHS members can get exclusive individual advice from the RHS Gardening Advice team. The agapanthus gall midge, Enigmadiplosis agapanthi, causes damage to the popular ornamental plant Agapanthus. Agapanthus gall midge is a fly that can cause buds of Agapanthus  to become deformed and discoloured and fail to flower. In June 2015, the pest was added to the Plant Health Risk Register and it was decided that statutory action should be taken against findings of the agapanthus gall midge on commercially traded plants. 'You must have some bread with it me duck!' Infestation can be confirmed by opening the buds or flower heads and looking for the presence of small maggots 1-3mm in length which are a creamy yellow colour. The Royal Horticultural Society is the UK’s leading gardening charity. Mon – Fri | 9am – 5pm, Join the RHS today and support our charity. The agapanthus gall midge, which is new to science, is a damaging pest of Agapanthus. Thanks for that info. It was first discovered in 2014 in someone’s back garden and is so new to science, it hasn’t even got a Latin name yet! We publish and share only non-identifiable data from survey submissions (such as a six figure grid reference) with third parties and the public for the purposes of scientific research and advancing understanding among gardeners. The midge larvae form galls in the flower buds, deforming them and stopping their flowering. 'You must have some bread with it me duck!' The RHS is currently collaborating with ADAS in an AHDB funded research project  to look at potential pesticide and biological controls for the midge. The midge can cause the bud to be deformed and discoloured and often fail to open. RHS Science: Agapanthus gall midge species description The larvae of the Agapanthus gall midge (Enigmadiplosis agapanthi) cause deformation, browning or discoloration of flower buds in June to September, though the foliage remains healthy. Agapanthus gall midge, can cause deformity and discoloration of the flower buds. A report outlining the results of observations on the midge’s biology and lifecycle made in 2015 can be found here. RHS Scientists have put the call out to gardeners nationwide for more information on a new pest attacking agapanthus plants. Agapanthus gall midge advice profile page Agapanthus gall midge is a tiny fly that lays eggs on the developing flower buds of Agapanthus. “Agapanthus gall midge is a new species of fly affecting Agapanthus that can cause buds to become deformed and discoloured and fail to flower. Larvae can most commonly be seen inside individual flower buds, but if infestation occurs before the flower head sheath opens then the larvae can live and feed between the developing flowers and cause complete failure of the flower head. nov. (Harris et al., 2016). Severe midge infestation in flower heads has been seen to cause up to 70% crop loss, as reported by current AHDB-funded research (HNS PO 199). The bug, now called agapanthus gall midge, can cause deformity and discoloration of the flower buds and in some cases can cause the flower bud to fail to open. The agapanthus gall midge, which is new to science, is a damaging pest of Agapanthus. new to science). The agapanthus gall midge (Enigmadiplosis agapanthi) is a recently described pest affecting Agapanthus. Until 2016 the species of midge causing this problem was undescribed (i.e. The tiny gall midge lays eggs which develop into maggots inside the individual flower buds or inside the closed scapes. The agapanthus gall midge, Enigmadiplosis agapanthi, causes damage to the popular ornamental plant Agapanthus. The midge larvae form galls in the flower buds, deforming them and stopping their flowering. The Hemerocallis gall mite is very much like that. Consequently, very little is known about the biology and lifecycle of this insect. Species description. In June 2015, the pest was added to the Plant Health Risk Register and it was decided that statutory action should be taken against findings of the agapanthus gall midge on commercially traded plants. Sounds nasty. Please include postcode of location of the plant, tohelp us to map how widespread the midge is in the UK . Agapanthus gall midge Agapanthus gall midge is a fly that can cause buds of Agapanthus to become deformed and discoloured and fail to flower. The midge can cause the bud to be deformed and discoloured and often fail to open. The pest, which the RHS has named ‘agapanthus gall midge’ can cause deformity and discolouration of the flower buds of the plant and in some cases cause the flower bud to fail to open. Opened buds showing larvae where possible, to entomology @ rhs.org.uk angreb agapanthus! 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