Pests in the Urban Landscape

Did you know that disinfectants and sterilizers are pesticides? Any substance that claims to kill, destroy, prevent, or repel a pest, including germs, is considered a pesticide. So cleaning products that claim to sterilize or kill germs on surfaces or be effective against bacteria like E.

Eucalypt trees have become abundant in the California landscape, but so have the many invasive eucalypt pests that have arrived in California in the last couple decades.

Sudden oak death (SOD) is a disease syndrome that has killed millions of native oak trees (Figure 1) along the west coast of the United States, from Big Sur in California up to Southern Oregon.

Have you been seeing a lot of defoliated sycamore trees recently? Sparse foliage and early leaf drop on sycamore trees might be due to anthracnose. The cool, wet spring in many parts of California provided the perfect conditions for this disease.

It may be after Labor Day, but some of your plants may still be wearing white, breaking that long-standing fashion rule! While many of us don't adhere to this old rule for our wardrobes these days, you may care about white stuff on your plants this time of year.