Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Sooty mold appropriately and exactly describes the disease, as it looks just ...

Garden staff are finding more scale insects and aphids than in past years. A major infestation of lecanium scale was recently found on a large planting of bald cypress at the Garden. The population of ...

Question: I hope you can help. The leaves on my orange and lemon trees are turning black. The black material does not wash off easily, but it wipes off if I scrub the leaf with water and a paper towel ...

DEAR NEIL: Last year our 7-year-old Meyer lemon tree produced an abundance of beautiful lemons and foliage that was bright green. This summer it developed whiteflies. I applied Neem oil for three ...

Q. For the second year my crape myrtle has been affected by a black powdery disease that causes the leaves to turn yellow and drop. I have treated it with two different types of fungicide, one of them ...