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 ...

This article is for everyone with an interest in lychee trees. A new pest in the state is a serious threat to lychee trees, so everyone growing one will want to learn how to protect it. This new ...

On a warm, dry summer day, some of my plants’ leaves had a sprinkling of light dots. Some were turning an unhealthy, ugly bronze color. The underside of the leaves revealed webbing, indicating that ...

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 ...

A new pest in the state is a serious threat to lychee trees, so everyone growing a lychee tree will want to learn how to protect it. This new insect is the Lychee Erinose Mite and goes by the ...

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 ...