Content
- Colorado fir - diseases and pests
- Signs of diseases and pests
- Common Diseases at Colorado Fir
- Recognize fir crayfish and gray mold
- Common pests
- Prevention of diseases and pests - avoid care mistakes
- Tips
This is what a healthy Colorado fir looks like
Colorado fir - diseases and pests
It can be up to 350 years old, the Colorado fir. With their long needles, they can easily be distinguished from other native firs in this country. But sometimes she is sick or is infected by pests ...
Signs of diseases and pests
Depending on the nature and severity of the disease or pest infestation, there are various signs that you can use to gauge the health of your Colorado fir. These include:
Common Diseases at Colorado Fir
Usually, Colorado firs are not affected by disease. Rarely, viral and fungal infections may occur. For example, a resin flow indicates a virus disease. Yellow needles can stand for a fungal disease. These include, for example, crayfish, pine needle rust and gray mold.
Recognize fir crayfish and gray mold
In the case of fir cancer, curved and later yellow colored needles appear. They are dropped in the summer. Grayling can be detected, for example, by white spore heads on the underside of the needle. In addition, gray-brown threads are often to be recognized.
Common pests
More common than diseases occur in Colorado firs in this country pests. There is a wide range of pests. However, in the case of poor site, climate and care conditions, these trees are predominantly attacked by the following pests:
The pests usually absorb the sap. As a result, the needles turn yellowish until they drop of powerlessness. Regular checks for pest infestation and immediate intervention in finding or using soapy water can help.
Prevention of diseases and pests - avoid care mistakes
Diseases and pests usually occur only on weakened plants. To keep the Colorado fir vital and therefore robust, one should avoid care mistakes, if necessary, pour, do not fertilize too much, etc.
Pay particular attention to the following aspects of site selection and care:
Tips
In this popular Christmas tree, the old needles in the late summer naturally brown and discarded (normal aging).