Needle blight is a disease that usually affects pine trees, killing off the tip of the needles and branch tips.
Identify the problem
Needle blight is a disease that usually affects pine trees. Needle blight first appears as dark green, water-soaked spots on the needles. The spots become tan, yellow, or reddish-brown.
The tip of the needle beyond the band eventually dies leaving the base of the needle alive and green. Young trees are more likely to suffer damage than older trees.
- Spraying with Organic Super Sulphur will prevent new infections, but will not cure diseased needles.
- A spray of PLANThealth Spectrum or PLANThealth Rose Force in early June is sufficient to provide protection of new foliage. However, a second application three to four weeks later will provide more complete control.
Did You Know
- Needle blight is caused by the fungi Cyclaneusma minus and Dothistroma pini.