|
Neem oil is an insecticide - it works by smothering insects. So it wouldn't have any effect on a fungus problem. A lot of fungus problems can be cleared up by adding some air flow - getting a small fan running would be good.
If you had small 'scabs' that you were knocking off the undersides of the leaves, those were scale. If they were dry and crumbled off (don't worry about them)- they were dead. If they were moist and squished off, they were alive - and you should use a systemic of some kind - I reccomend Bayer advanced tree care. You can only get it in a big bottle, but its the best working one. It will not do anything for fungus. Fungus I would remove the effected leaves, add some airflow and you should be okay - you've already cleaned out the probably causes of the fungus, and done wonders for your tree since it sounds like it was inappropriately potted.
-Centaura
|