The Asian citrus psyllid is an insect that can carry a deadly tree disease called Huanglongbing or citrus greening. To help educate people about the seriousness of this disease, how it spreads, and how to deal with it, the UC IPM program has published an updated version of the Pest Notes: Asian Citrus Psyllid and Huanglongbing Disease, by experts Elizabeth Grafton-Cardwell and Matt Daugherty.
- Author: Siavash Taravati
[From the Fall 2018 issue of UC IPM's Green Bulletin newsletter]
The dark rover ant (Brachymyrmex patagonicus) is an invasive species which is increasingly being noticed in Southern California. It is a nuisance species that invades structures as both workers and winged (alate) individuals.
This article aims to introduce structural and landscape pest management professionals (PMPs) to the dark rover ant and includes several important references for readers to learn what is currently known about its biology, behavior, and control.
Controlling weeds can be challenging to landscape professionals or home gardeners since landscapes often include a mix of turfgrass, annual plants, herbaceous perennials, shrubs, and trees.
The newly revised publication Pest Notes: Weed Management in Landscapes by Area IPM Advisor Cheryl Wilen, presents an integrated approach to weed management to help ensure weed control efforts are effective, environmentally-sound and economical. This science-based publication includes information on methods such as pre-planting considerations, the importance of weed identification, nonchemical practices such as using mulches and barriers, weed management...
Are you seeing cars, sidewalks, driveways, or other plants covered in sticky stuff, especially those under trees? This sticky substance, called honeydew, is produced by certain insects that excrete it when they feed on plants. Plant leaves look shiny and honeydew may be so thick that it drips off the leaves onto the ground or other plants underneath. And in some cases, a black, powdery fungus called sooty mold grows on it, causing the plant's leaves to look dirty.
We've written about quite a few of the insects that produce honeydew in our blog, so here is a list of the possible culprits that may be causing the mess this time of year:
The hackberry woolly aphid is a major pest on
When you hear the term “pesticide,” what comes to mind? Do you understand what pesticides are and, more importantly, how to use them correctly?
A pesticide is any material (natural or synthetic) used to control, prevent, kill, suppress, or repel pests. “Pesticide” is a broad term that includes insecticides, herbicides (weed or plant killers), algaecides (algae and moss), fungicides (plant diseases), rodenticides, miticides (mite control), and molluscicides (snails and slugs). Even antimicrobial products (such as bleach and sanitary wipes) that kill bacteria on surfaces and chlorine added to pools are pesticides. If a product has a U.S. Enviromental Protection Agency (EPA) Registration Number on...