There can be a number of reasons why the needles on various varietals of pine trees may turn brown. Most gardeners learn by trial and error as the first symptom that there is a problem is often the presence of pine needles that are browning and dropping from the limbs. However, once the causes are identified, they can be controlled and prevented from causing similar occurrences in the future. Here are ideas for how to treat and prevent pine trees from turning brown.
Environmental causes for the presence of browning, falling pine foliage include drought, excessive heat, too much moisture or standing water around root systems, various fungal ailments such as tip blight, a bark beetle infestation, and in its most extreme case, a pine tree that has been roots up deceased and finally exhibits its state through browning foliage and falling needles.
Depending on the causative agent, treatments for pine trees turning brown may vary from adjusting the nutrients and hydration to transplantation of young trees or excavation of old, dead pine trees. Fungicides and pesticide sprays along with isolation of infected trees and removal of fallen infected foliage is recommended to treat infestation by pests or disease.
The best prevention against pine trees turning brown is thoroughly knowledge of pine tree care and maintenance. Knowledge of warning signs and what to watch out for will be key in making environment adjustments before they get to the stage of killing off foliage and branches. Soil pH and drainage tests will assist in adjusting delivery of fertilization, nutrients, and moisture to keep pine trees healthy and disease free. Understanding what fungal and viral diseases and pests pine trees contract will be key in preparing planting areas to avoid infestation.