Blue Rug Juniper Diseases

As disease development progresses the needle browning spreads upward and outward. Fungi thrive when there is adequate moisture and warm temperatures which is why this juniper disease shows up in spring. I have a patch of blue rug junipers measuring roughly 5ft x 100ft.

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In the summer needles become bronzed tan and eventually gray.

Blue rug juniper diseases.

Juniper twig blight disease. They were great til it got warm. Too much fertilizer is one cause of the disease as are wet humid weather and over pruning the plant. It has gotten a little worse every yr.

When many branches become infected the overall appearance is gray ragged and unsightly. Root and crown rot root and crown rot are caused by. Blue rug juniper turning brown. Parts of the outside edges have started turning brown along with a few spots towards the center.

It begins by infecting the oldest needles that are located on the lower branches inside of the plant. Watch for spider mites as well. 2 inches of bark chips. Phomopsis twig blight is a juniper problem.

Water 2 minutes twice weekly until it started 90 degrees then to 4 minutes twice weekly. Branch tips usually remain healthy and green. Phompsis blight causes yellowing chlorotic new shoots in the spring and early summer. Well draining soil with sand.

Although blue rug is resistant to two common juniper diseases phomopsis twig blight and cedar rusts it is susceptible to several others. Juniper twig blight can be caused by phomopsis kabatina or scllerophoma pythiophila but the more commonly found is the phomopsis fungus. It is a fungal disease that causes small lesions on the twigs. This disease is caused by the fungus cercospora sequoiae var.

Junipers 7 planted last september. These plants are about 15 yrs old and have looked decent until about 3 yrs ago when the brown started creeping in. The needles of the inner and lower branches are affected first. As the infection spreads the shoots die and cankers form girdling and killing shoots and stems.

Asked june 1 2016 5 02 pm edt. Blue chip is beautiful but as it grows older the centers die out and turn brown and unsightly. Occasional insect pests include bagworms scale webworm aphids. This differs from twig blights which start at branch tips.

Wichita blue juniper is particularly susceptible to phomopsis. Make sure you planted blue rug and not blue chip. The disease progresses upward on the shrub and outward toward the branch tips. These plants are generally susceptible to blights and root rot may occur particularly in unusually rainy wet springs.

There are no serious insect or disease problems with the blue rug junipers.