Forum home› Problem solving
This Forum will close on Wednesday 27 March, 2024. Please refer to the announcement on the Discussions page for further detail.

Horse Chestnut scale insect or Wooly Aphid?

mel-6QmTMC5mel-6QmTMC5 Posts: 4
in Problem solving
Hi there, 

Can anyone help? I am not sure if this is Wooly Aphid or Horse Chestnut Scale Insect?!

And how do I deal with it?

Acer seems happy, no other problems to report, and I have had it for a long time, so would hate to loose it.

Thanks in anticipation

Posts

  • nick615nick615 Posts: 1,487
    If it's an aphid, boil some rhubarb leaves, allow to cool, strain, put the liquid in a cast off household trigger spray and spray them.  Make extra and keep for after rhubarb has died back.
  • DovefromaboveDovefromabove Posts: 88,147
    It’s not aphids … it’s scale insects. Scrape or scrub them off   You May have to do it several times. The white stuff is their egg mass. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • Arthur1Arthur1 Posts: 542
    It's scale insects. Remove physically, hose jet works well  or nail brush. I grow lots of acers and about once a year I go round with a hose and blast the scale. Its not a major problem.
  • mel-6QmTMC5mel-6QmTMC5 Posts: 4
    Thank you both so much!
Sign In or Register to comment.