Phylogenies are a fundamental tool for organizing our knowledge of the biological diversity we observe on our planet. But how exactly do we understand and use these devices? Tree diagrams have been ...

Q: I have a Eureka lemon tree with a branch or two that are dying. Is it a borer problem? A: Branch dieback in citrus, particularly lemon, is very confusing. It is not likely to be a borer problem.

Squirrels, insects and lightning strikes may be the reason for dead tree branches. Pruning the dead branch will solve the problem in most cases. This has been a long, hot, wet summer and soon fall ...

A team of researchers is using a novel technique to comb through the data and to reconstruct major branches in the linguistic tree. The diversity of human languages can be likened to branches on a ...

Do you have a tree with a dead, damaged, badly placed or rotting branch that needs to be pruned off? To avoid danger to yourself and damage to the tree, plan carefully before you cut. “Wood is heavy,” ...