Posted: 16/07/2015 at 23:04
Well, my broad beans were left for a week while I was on holiday, and now the newest row is ruined by blackfly. Some of the plants are totally black and the tiny pods all shrivelled. I did see one solitary ladybird, but it obviously hasn't made much impact.
So I have resorted to a soap-and-oil spray to try to save the remaining plants. I did remove the ladybird and put it elsewhere, but just waiting for its friends and relations to turn up and help was clearly not going to work. Sometimes nature has no particular inclination o do the things we want, and the blackfly were definitely on the winning side until now.