I have a scale infestation that's spread very quickly to half my collection. Given the way that I've grown my plants (mounted on concrete strips), it's not practical to treat each infected plant individually, so a systemic insecticide seems my only option. I bought such insecticide and made three weekly applications, but the scale is still there. Since the preparation was made following the manufacturers recommendation (X ml per Y litres of water), I suspect the amount of pesticide that I applied per plant was too low.
My question is, how much of insecticide should be applied per plant: i.e. 10ml, 20ml ... etc? And how do I know when the infestation is controlled - i.e. how do I know the pests are dead? Thank you, Dinesh. _______________________________________________ the OrchidGuide Digest (OGD) [EMAIL PROTECTED] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
