How Do You Treat A Sick Blue Spruce?

What’s wrong with my blue spruce?

Blue spruce trees are susceptible to an infectious needle disease caused by the fungus Rhizosphaera.

The disease, referred to as Rhizosphaera needle cast, is the most common problem seen on blue spruce samples that are submitted to the Plant Disease Clinic.

In general, trees appear to die from the bottom upward..

Why are my blue spruce turning brown?

If needles are browning at the tips of the branches followed by lower branches dying, you may be dealing with a fungal disease known as cytospora canker, which is the most common unnatural cause for needle drop on Colorado blue spruce.

How fast do baby blue spruce trees grow?

The Baby Blue Colorado Spruce has notably few disease or pest problems and is quite hardy once established in the landscape. This blue spruce has a moderate growth rate and tends to grow around 9-12″ a year. This tree reaches a mature size of 15-20′ H x 6-10′ W.

Can you save a dying spruce tree?

There is no treatment for cytospora canker, according to Yiesla. A tree can live with the disease for a few years — “it’s not an immediate death sentence,” she said — but branches will continue to die. Remove every dead branch with a clean pruning cut next to the trunk, she said.

What kills blue spruce?

Bagworms and weevils are two bugs that can attack (and kill) spruce, but probably the most common is mites. These are microscopic bugs that suck the chlorophyll out of the needles and give the tree a “dirty” appearance.

Do blue spruce trees lose their needles?

Like all evergreen plants, both needled and broadleaf, spruce trees eventually drop foliage. An individual needle will naturally stay on a spruce branch for 2-3 years, and then turn brown before dropping. … Cytospora canker, a fungal disease, is the most common reason for unnatural needle drop on Colorado blue spruce.

How do I make my blue spruce more blue?

Instead, giving the tree the best care possible will give you the edge on keeping a blue spruce blue. First, be sure to give your tree a full sun location with good drainage in an appropriate hardiness zone. Next, give it sufficient water to keep the soil moist, plus an extra inch (2.5 cm.)

Will blue spruce branches grow back?

Well, the short answer is no, the needles will not grow back. Long answer is, as long as the growing tips of the branches are not damaged, the tree will most likely produce new buds next year as long as the tree has been properly cared for (good water, maybe a bit of fertilizer this past spring, etc.).

How do you treat blue spruce disease?

Fungicides with the active ingredient chlorothalonil, copper hydroxide or mancozeb will protect new spruce needles from infection by Rhizosphaera.Make one application in spring or early summer when the new needles have grown to half their mature length.Make a second application 3 to 4 weeks later.More items…

Why is my blue spruce dying from the bottom up?

There could be several reasons for the lower branches dying on your spruce. If the upper branches provide too much shade, the lower branches naturally die off. … Cytospora canker is a fungus that attacks spruces and causes branch death.

What is the lifespan of a blue spruce tree?

600-800 yearsThe Colorado Blue Spruce (Picea pungens) is a member of the pine tree family that is native to the Rocky Mountain regions of North America. The tree has a mature height of around 70 to 80 feet. While blue spruce grows relatively slowly, it is long-lived and may reach ages of 600-800 years.

Do evergreens turn brown in fall?

There is so much beauty in an evergreen tree. When the rest of your trees are turning brown and dying during the autumn and winter months, they are standing lively and green. … Browning of evergreen trees can happen during any season of the year, so you want to ensure that you tackle the problem as soon as you see it.

How do you know when a blue spruce is dying?

Here’s what to look out for:Needles Turn Yellow or Brown and Drop Off. It’s easy to tell whether your blue spruce trees are healthy or not. … Drying and Dying of Lower Branches. When you see lower branches of a blue spruce drying and dying, you should expect the worst. … Dying of New and Emerging Shoots.

Can a dying pine tree be saved?

Pine Needle Fungus If you’re certain that your tree is getting the right amount of water and no signs of pests are present, you may be able to save your tree with a broad-spectrum fungicide containing neem oil or copper salts. Always read all directions, since some fungicides can cause discoloration on certain pines.

Do Blue Spruce need a lot of water?

When established, Colorado Spruce trees are quite drought tolerant plants. Only during prolonged periods of drought will plants require supplemental irrigation. When growing a Colorado Spruce in a container. check soil moisture frequently and provide some water when the top 2 inches of the soil becomes dry.