In a message dated 3/14/03 8:29:54 AM, [EMAIL PROTECTED] writes: << What sort of experiences have you (anyone) had with using 501 in a greenhouse? I think that Grotzke advised that it is too strong for use in a greenhouse. (?) For this reason, I have held off using it. First outbreak of aphids makes me think of using it. I think heinz mentioned a residual and a generalized effect that henceforth makes the house uncomfortable for seedlings. >>
I don't know how Heinz brought the climate of Germany to his New Hampshire greenhouse but I do not doubt that he did. If using the 501 to repel / make uncomfortable for aphids and not used to increase light, you may want to spray late in the afternoon, soaking the critters well; you may also try a nettles tea and ask the ants and lady bugs to come and eat...sstorch
