as long a the breezes is flowing tru the plants is does int matter were they point but the breeze has to flow thru the canopy the nutes onea leaf feed pm too or soo ive read man pm is the biggest bitch but it like the 7 year itch once you got it you got it at least until the next crop.
to clean the room inbetween lots of sulfur it kills it no doult, ozone, bleach and new coco the spores will stay dormet in the coco/soil for years i does not need to feed or anything so ive read thats about 600 in coco. there is a super pm thread on hear riu i came across a while back with some pm killers that work on the paracite that causes the pm that lives in the plant, use google shearch pm riu because the search on here suck so bad its not funny an dpeople say you should have shearched it first, i always say try and use th esearch on here