This time of year, deciduous trees go dormant, and evergreen trees such as pine are more visible in the landscape. Pine trees, like other plants, can suffer from attack by pests, whether on your property or in our forested areas in California.

Pine trees do best when planted in well-drained soil in full sun, and most species need little water once established. Trees can ward off attacks by many insects and diseases if taken care of properly.

Several diseases can affect pine trees, such as rusts, blight, and root rot. Disease symptoms vary, but may include discoloration of leaves or needles, cankers, galls, and ooze.

Pine trees are susceptible to damage by over 20 different kinds of insects, including aphids,...