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Gall midges

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Gleditsia gall midge

Question from Anna Powell

I have two gleditsias, a 'Sunburst' and a 'Ruby Lace'. They are spoiled by gall midge every year, turning new growth into red blisters. Neither tree produces flowers in the spring. Spraying has had little effect, but perhaps I have not been ferocious enough with this - I can't reach the higher branches to spray them, and I am concerned whether the spraying may be harmful to birds. Glad of any suggestions.

  • Views: 569
  • Replies: 2
  • Posted: Sat. 18th October 2014 15:44
  • Last reply: Mon. 20th October 2014 17:57