Verticillium wilt
Verticillium dahliae

• Leaves on one to several branches turn red to yellow, wilt, die and fall off
• Dark olive to gray streaks are often visible in the sapwood if the bark is peeled back
• Symptoms may appear in several branches or in the entire shrub
• Symptoms are often most obvious in late summer and autumn but can occur throughout the growing season
• More information on verticillium wilt