Azalea Dieback

This looks like an ailing Azalea. It may be that this plant suffered winter damage in the past cold season, and or drought-damage from the dry conditions the past summer. In any event, you can try to bring it back but many people find that when an azalea has significant dieback such as this the plant doesn’t become more attractive again.
However, if you want to try here’s what you do:
1. Prune out all dead wood. Any twigs that snap off easily are dead – remove them.
2. Apply a light application of an organic fertilizer such as Hollytone.
3. Water the plant deeply once a week, even through this fall.
4. Apply a layer of composted cow manure all around the plant after you’ve spread the fertilizer.
5. Next year be sure to water deeply once a week – mulch on top of the composted manure at a depth of 2″ will help – keep mulch away from the stem, however, as azaleas and rhody’s don’t like their stems buried.