Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at gnogardening@agcenter.lsu.edu. I have a problem with my navel orange tree. It is producing two types ...

Don’t panic if you see spots on your tree’s leaves or something strange on the bark. Get to work diagnosing the problem with this guide that features pictures of common tree diseases and pests that ...

Homeowners should periodically inspect their trees for warning signs. Signs of an unhealthy tree include falling bark, abnormal leaves and the presence of fungus or mushrooms. Certain tree species, ...