By Jmquinan
United Kingdom 
I have an Acer (vine mapple) which is well established. I noticed this morning that lots of black fly has appeared on the leaves.
How should I treat this problem?
27 Mar, 2012
Answers
I had black fly on mine last year and the only way I could get rid of it was (reluctantly) with a fly spray. It killed most of the leaves off though!! They've regrown OK this year now.
27 Mar, 2012
if its worked thats fine . fly spray works on the sentral nervous system so shouldnt hurt your plants .
28 Mar, 2012
soapy water every so often will do . even a blast with the hose as there so delicate .
27 Mar, 2012