Japanese black pine tree with a blue sky in the background - Mawaddah Fauziah/Getty Images Japanese black pine (Pinus thunbergii) is an incredibly striking, hardy tree with iconic long needles and ...

In the 1970s and 1980s, pine trees growing in various forestry plantations in South Africa’s Western Cape province began to die in patches. These trees succumbed to a mysterious root disease and the ...

Pine wilt disease represents one of the most destructive threats to forestry worldwide, with Bursaphelenchus xylophilus – a microscopic nematode – being the primary agent behind the rapid decline of ...

Many of the inner needles of my white pine tree are turning brown, but the limb tips are still green; could this be the bad pine disease going around? - Norm, Tulsa Brown pine needles in fall are most ...

MONTICELLO, Ark. — A fungal disease infecting South Arkansas's pine forests has had forest health experts on high alert. It's called brown spot needle blight, and it infects pine needles, leading to ...

Question: I have three pine trees in my front yard. One of them has turned brown during the past month and looks dead. The others look OK. Any idea what caused it and what I should do? - Pat F., Tulsa ...

Japanese black pine (Pinus thunbergii) is an incredibly striking, hardy tree with iconic long needles and asymmetrical form, providing unique visual interest to any landscape. Although it's a great ...