Forests

Figuring out what's wrong with your plant takes a little detective work. Plants can look unhealthy for a number of reasons, including diseases, pest insects, or even environmental conditions like sunburn, too much water, not enough water, wind damage, and other issues.

Annually on February 2, groundhogs get a lot of coverage. Groundhogs, also known as woodchucks, are burrowing rodents often found in the eastern United States. But in California, any shadows from burrowing rodents are unlikely to be a groundhog.

Strong winds from the latest winter storm have downed trees and branches throughout Northern California and may have also damaged plants in your garden and landscape. Further damage from wind or hail can be reduced with proper cultural care.

Rodent Awareness Week (October 18-24) is a campaign created by the National Pest Management Association to educate the public about the potential harm associated with rats and mice. In addition to damage to structures and property, rodents can transmit disease to other animals and humans.

If you are growing tomatoes in your garden, you may not be the only vertebrate going for your hard earned harvest. Are rats feasting away in the garden? We have a couple resources we can share to help you reduce or prevent rat damage to your tomatoes.

Your customers want their lawns to be beautiful and functional (Figure 1) but dead patches or other problems sometimes occur. Figuring out the cause of turfgrass damage can be a challenge since many plant pathogens affect grasses as well as numerous abiotic (non-living) disorders.

Nutria are found near rivers, streams, lakes, ponds and wetlands. Their burrowing and feeding on vegetation can cause damage. In addition, they can carry pathogens and parasites.

While some may find them cute, both the Eastern gray squirrel (Sciurus carolinensis) and the Eastern fox squirrel (S. nigeri) are actually invasive species in California. They are two of four species of tree squirrels found throughout the state.

Sudden oak death is a disease of oak trees that is caused by an invasive plant pathogen Phytophthora ramorum. The disease has been found infecting trees in coastal California counties from Monterey to Humboldt and can be spread by moving infested soil and plant material. In California, P.

Anthracnose is a group of fungal diseases that infect many trees and shrubs, causing dark lesions on leaves and cankers on twigs and stems. In some areas of California, vegetables and turfgrass can also be infected with anthracnose. Symptoms of anthracnose vary by plant host and weather conditions.