Agapanthus gall midge

Publication Date
Tue, 10 Nov 2015, 11:34
Last Updated
Nov. 10, 2015, 11:34 a.m.
Report Number
GBR-37/1
Country
United Kingdom
Report Status
Final
Hosts
Agapanthus spp.
Pest Status
  • Present: at low prevalence
  • Present: but managed
  • Present: only in some areas
  • Present: subject to official control
  • Present: under eradication
Geographical Distribution
South of England
Summary

Following an official survey in 2015, the midge has been identified on Agapanthus plants in public gardens in Devon, Essex, Somerset and Surrey, from private gardens in Surrey and West Sussex, and from nurseries/garden centres in Cornwall, Dorset, Hampshire and Surrey.

Statutory action is being taken on commercial premises where the midge has been identified, to prevent movement of the midge across the UK, as well as into other EU countries

As the midge has been confirmed as established in gardens in a number of counties, no statutory action is being taken in the wider environment, but advisory information will be provided to help suppress populations.

Identified on 12th August 2014 as a species new to science. Yet to be formally described.

Danger
The midge has only been recorded on Agapanthus. It causes flower buds to deform, discolour and sometimes fail to open. Occasionally, the midge can lead to the collapse of whole flower heads. This will impact negatively on the sale of Agapanthus.
Report files
Website
https://secure.fera.defra.gov.uk/phiw/riskRegister/viewPestRisks.cfm?cslref=27376
https://www.rhs.org.uk/advice/profile?PID=901
Issue keywords
Commodity keywords

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