From your description, it’s likely your tree is suffering from chlorosis, which is a yellowing of green leaves due to a lack of chlorophyll. Symptoms of chlorosis could appear in a few branches or the ...

If your trees or lawn start the season looking more lemon than lime, you may be seeing iron chlorosis—a common nutrient problem across much of the West. It’s especially noticeable in early spring, ...

Abiotic problems can be just as hazardous to plant life as disease and insect pests. Last week I wrote about the widespread concern over fungal rust in ash trees. This week’s popular question focuses ...