Here is a good example of the interaction of the environment, trees, and their pests. In a Napa landscape, mixed ornamental planting, with perennials and shrubs, one of four Italian cypress trees ...

Q: We have almost a dozen Italian cypress trees in our backyard. They seem to be dying, and it’s getting worse. We thought we saw spider webs on some. What would cause this browning, and what can we ...

Alias: Maple bladder gall mite. This insect is very rarely seen, but its effects are common among maple trees. It is a small mite that feeds on the underside of maple leaves, and develops a bright red ...

Florida-grown lychee trees offer a taste of the tropics for home growers. Their berries deliver a sweet, rose-scented fruit with vitamin C-rich pulp and a vibrant color and flavor to fruit cups, cakes ...

Insects called "oak leaf itch mites" may be to blame for a spread of red bug bites this summer – and cicadas are serving as unwitting accomplices. Also known by their scientific name Pyemotes herfsi, ...

A majority of questions received by Extension horticulturists relate to shade and evergreen tree problems. If you have a question, or want to be more informed about current issues to protect your ...

Q: Since we have so little snow in our area so far this winter, would it be a good time to prune my apple trees, if we get some mild days? I know they need to be pruned when they are dormant. – Jim ...