I did scrub every nook and cranny, inside and out, of both greenhouses, with Jeyes last autumn.....no corner was left unscoured! The bench and even canes and those plastic oojahs that secure fleece to the frame, were subjected to a soaking of Jeyes. Whether this did the trick, or if it was due to the cooler weather this year, I don't know but it's at least broken a two year cycle of infestation!
.Cheers!
