MADISON, Wis. - The Wisconsin Department of Natural Resources is asking the public to check needle-bearing trees for signs of a harmful disease and report their findings to the department.

Conifers, such as pines, spruces, and firs, produce sticky resins that protect the trees from insects and pathogens.

As the world warms, a new study is helping scientists understand how cone-bearing trees like pines and junipers may respond to drought. The research addresses a classic question in the field: When ...

A VERY thorough study of the root system of young conifers has been made by Dr. E. V. Laing for the Forestry Commission, and an account of this work is published by the Commission as Bulletin 13 under ...

Within conifers, active abscission of complete penultimate branch systems is not common and has been described mainly from juveniles. Here I present evidence for the abscission of penultimate branch ...

Spring has sprung and gardeners are digging in. Got questions as you carry on? Get answers from Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU ...

Support local journalism: Find offers for new subscribers here: Special Offers — USATodayNetwork. Many residents who grow palms are familiar with the signs of Ganoderma butt rot, Ganoderma zonatum, ...

Background and aims Root system architecture regulates belowground access to soil resources. Variation in root architecture is important in agroforestry systems given management objectives to optimize ...