Q.Hi. Have Thuja Plicata Atrovirens Hedges And Starting To Brown. About 1m High, Planted In May. Any Help Appreciated.
Hi. My Thuja Plicata ATROVIRENS hedges are browning. Planted in May, are young hedges about 1m high. Should I cut out the brown leaves? What can I do to stop the browning please?
Certified GKH Gardening Expert
You can prune out some of the brown, but do not cut back to the bare trunk or branch. I would, also, treat with a copper-based fungicide. I suspect that this is Twig or Leaf Blight. Both will require anti-fungal treatment.
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
Be sure that your soil is in good condition. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/macro-and-micro-elements.htm