1. My oleander is covered with reddish-orange colored worms with black hairs. They are eating all the leaves.  How can I control them?
The eggs of the oleander caterpillar are laid on the new, tender growth. When the eggs hatch, the tiny worms cluster and feed on the branch tips. They can be easily controlled at this stage by simply pruning off these branch tips before the worms mature and migrate throughout the entire shrub.  See Insect Management Suggestions.