
Posts Tagged: exotic
What makes a weed an invasive plant?

Weeds are usually thought of as native plants we don't want in areas such as landscapes, fields, or vegetable gardens either because they reduce economic output or they are considered aesthetically displeasing. Invasive plants are generally non-natives...
The White Garden Snail: A Serious Threat to Landscape Ornamentals?

The white garden snail (Theba pisana), sometimes known as the Italian white snail, can be a serious pest of landscape ornamentals, including trees, shrubs, groundcovers, and herbaceous plants (Figure 1). Although it has been established in...
Keep an Eye Out for Spotted Lanternfly

The spotted lanternfly (Lycorma delicatula) is a new exotic pest that was first detected in Pennsylvania in 2014 and has since moved to other nearby states (Figure 1). Everyone, including home gardeners and retail nursery and garden center employees,...
Don't Move Firewood!

[From the Summer issue of the UC IPM Retail Nursery & Garden Center News] When you use firewood in the great outdoors, be aware that moving firewood can transport tree-killing insects and diseases. Find out more at the following...
Don't Move Firewood!
Invasive Spotlight: Wrapping Up California Invasive Species Action Week

This week, we put the spotlight on invasive species and how these non-native plants, animals, and pathogens damage California's economy and environment. You Can Make a Difference Shot hole borers and the diseases they carry, and Asian citrus psyllid...