Invasive species are non-native plants, animals, or pathogens that can cause economic or environmental harm. This year, we will be spotlighting several different invasive species that are established in California to raise awareness and help reduce their spread. Stay tuned—we will be showcasing a different invasive species each day and where you can find more information.
Want to learn more about California Invasive Species Action Week? Check out the full schedule of...
- Author: Niamh Quinn
It is important for food-safety reasons to manage rats in school and community gardens. Rats and other wildlife can carry a number of diseases that can be deposited in the form of urine and feces on fruit, vegetables, and in the soil. Rats can also directly damage fruit and vegetables by consuming the produce entirely or by gnawing on parts of it and making it unfit for human consumption. Norway rats create burrows that can compromise beds and root systems. While rats can also chew on drip irrigation and damage the tubes, it is more common for some other wildlife species to chew on these.
Managing rodents in and around school and community gardens can be difficult. One of the easiest ways to keep many rodents at bay is to remove...
Did you know that every 60 days, a new and potentially damaging invasive species enters California?
California residents can help in the fight against invasive species by learning and participating next week (June 2-10) in the California Invasive Species Action Week.
What is an invasive species?
Invasive species are non-native plants, animals, or pathogens that can cause economic or environmental harm. These invading species can damage:
- Native plants and animals—especially those that are endangered
- Agriculture—both farming and ranching operations
- Author: Janet Hartin
[From the Spring issue of the UC IPM Retail Nursery & Garden Center News]
Most disorders impacting landscape trees result from abiotic (non-living) disorders rather than attacks from biotic (living) pests like plant pathogens, insects, and vertebrates. Damage caused by abiotic and biotic disorders can appear similar, making diagnosis difficult at times. For example, discolored leaves on a Ficus nitida tree could be due to drought stress, a fungus, or a nutrient toxicity or.../span>
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,...