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Symptoms (low) - click to enlarge
RHS scientists in collaboration with Keith Harris published a description of the midge species in 2016, it now has the scientific name Enigmadiplosis agapanthi. A report outlining the results of observations on the midge’s biology and lifecycle made in 2015 can be found here.
Following a pest risk analysis and due to the widespread distribution of the midge Defra decided that statutory action was inappropriate. This means that as the pest is unlikely to be eradicated, commercial growers and home gardeners will need ways to manage it. Therefore the RHS decided to apply for funding from the Agriculture and Horticulture Development Board to continue research into the biology of this midge and start to find some control options. This project is being carried out in collaboration with ADAS.
Agapanthus gall midge advice profile page
End of season 2015 report
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