1. Drought:
* Symptoms: Brown needles, especially on the inner branches, and drooping branches.
* Treatment: Deep water the shrub thoroughly. Repeat every few days during dry spells, making sure water reaches the root system. Mulch around the base to retain moisture.
2. Winter Burn:
* Symptoms: Brown or scorched needles on the side of the shrub exposed to the sun and wind.
* Treatment: Protect the shrub with burlap, shade cloth, or evergreen boughs during the winter months. Avoid planting in exposed locations.
3. Root Problems:
* Symptoms: Browning that starts at the base of the shrub and spreads upward.
* Treatment: Examine the roots for damage or disease. Improve drainage if needed. Apply fertilizer to stimulate growth.
4. Pests and Diseases:
* Symptoms: Discoloration, needle drop, webbing, or insect presence.
* Treatment: Identify the specific pest or disease and apply the appropriate treatment, such as insecticide, fungicide, or a combination of methods.
5. Nutrient Deficiency:
* Symptoms: Yellowing or browning of needles, stunted growth.
* Treatment: Apply a balanced fertilizer specifically formulated for evergreens.
Here's how to approach the problem:
1. Inspect the Shrub: Observe the location of the browning, the type of damage (scorched, dry, etc.), and any other signs like insect damage or disease.
2. Identify the Cause: Based on the symptoms, narrow down the most likely culprit.
3. Take Action: Implement the appropriate treatment based on the identified cause.
4. Monitor and Repeat: Keep an eye on your shrub's progress and repeat treatments as necessary.
Important Tip: If you're unsure of the cause, consult a local nursery or gardening professional for diagnosis and advice. They can help you determine the best course of action for your specific situation.
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