Black flies (blackfly?) on sweetpeas
South Bohemia, Czech Republic
I have three large pots of sweetpeas a fair distance from each other, all different varieties. When I checked them this evening I noticed that the pot that is doing least well is covered in tiny black flies.
Should I be worried about this and do something to them? If so what?
One pot is completely free of them and the third had just one or two....
- 11 Aug, 2009