Spots Or Patches On Leaves

If spots or patches are crisp and brown, UNDERWATERING is the most likely cause. If the areas are soft and dark brown, OVERWATERING is the probable reason. If spots or patches are white or straw-coloured, the trouble is due to WATERING WITH COLD WATER, WATER SPLASHES ON LEAVES, AEROSOL DAMAGE, TOO MUCH SUN, PEST orDISEASE DAMAGE. If spots are moist and blister-like or dry and sunken, the cause is DISEASE. Several PESTS can cause speckling of the leaf surface.