Our mugo pines are about 5 years old. When the snow melted away from them many of the needles were yellowing. What can we do this winter to help them? Yellowing needles on mugo pine can be caused by a ...

Dear Sue: I have what I think is an umbrella pine tree, for the last three years. It is about 2 feet high. I know it grows slowly, but it seemed healthy when fall arrived. But now, in January, the ...

Cooler nights and falling leaves signal that fall is here. Pines in the area are starting to change colors too. Knowing the cause of the discolored needles will help to know if it is nature taking its ...

Q: Some of my young white pines have yellow needles. Will an application of lime help now, or perhaps some Miracid in the spring - if they are still living then? A: You're seeing the old ...

Do your evergreens have yellow or brown needles? There are many causes of the amazing color-changing needles. Knowing the cause of the discolored needles will help you know if it is nature taking its ...

Have you been noticing premature needle drop on your pine trees? Are the needles turning yellow? If so, you probably have Dothistroma needle blight. This disease tends to be more severe in crowded ...

"People often are surprised and in disbelief when I tell them that the yellow, dying needles are a function of the normal shedding that happens every fall," said Ingrid Aguayo, forest entomologist for ...

Some of my young white pines have yellow needles. Will an application of lime help now, or perhaps some Miracid in the spring - if they are still living then? A: You're seeing the old ...