Neil Sperry gives answers on kumquats, crape myrtle aphids/scale, shade lawn fixes with mondograss, dahlias vs. zinnias, and Asian jasmine.

A new study shows that tiny microbes living in and around oak trees may help them survive drought, poor soil, and disease.

Those trees are central to one of the efforts to restore the American chestnut. If enough of them have distinct means of ...

For more than a century, the American chestnut, once a dominant tree across eastern North American forests, has been devastated by an invasive fungal disease that killed billions of trees in the early ...