- Author: Karey Windbiel-Rojas

If you are battling with ground squirrels or tree squirrels around your home or property, join us on Thursday, May 19 at noon for UC IPM's one-hour seminar on Squirrels! Dr. Niamh Quinn, UC ANR's Human-Wildlife Interaction Advisor in Orange, Los Angeles, and San Diego counties, will share her insights on squirrel identification, biology, and management. There is still time to register and as always, our monthly webinars are free and open to the public!
https://ucanr.edu/sites/ucipm-community-webinars/
- Author: Karey Windbiel-Rojas
![Pecking damage by woodpeckers.[Credit: James Jay Farrar]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/90421small.jpg)
Woodpeckers are well known, colorful birds often found in wooded neighborhoods and forested areas. While they are wild creatures many people appreciate, they can become a pest problem when they damage buildings in search of food and nest building materials, or a nuisance pest with their rhythmic drumming.
Both male and female woodpeckers drum with their beaks to proclaim their breeding behavior and social dominance. Their pecking can cause structural damage, leaving gaps and holes in wood as they search for insects. Acorn woodpeckers create or find holes in buildings, fence posts, and utility poles to store acorns. Woodpeckers can also damage trees when they remove the bark to access the insects hiding underneath.
But...
![Spotted lanternfly is an invasive insect not yet found in California. [Credit: Lawrence Barringer, Pennsylvania Department of
Agriculture, Bugwood.org]](https://ucanr.edu/blogs/UCIPMurbanpests/blogfiles/90148small.png)
Due to unforeseen circumstances, the webinar scheduled for April 21 has been canceled and will be rescheduled for another date. We apologize for the inconvenience.
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What are you doing the third Thursday of each month at noon? Joining UC IPM for our monthly webinar, we hope!
This Thursday, come and learn about invasive species in California and what you can do to combat them! In Part 2 of this topic, Karey Windbiel-Rojas from the UC Statewide IPM Program will continue sharing information on new pests of concern or pests we are trying to keep out of California.
Can't make it? That's ok-- all the UC IPM webinars are recorded and later posted on UC IPM's YouTube channel....
- Author: Karey Windbiel-Rojas

It's that time of year again for UC IPM's semi annual Easter Egg hunt!
Can you guess which insect, spider, or mollusk laid the eggs pictured below? These critters may already be hiding in your home, landscape, or garden! Leave a comment with your guesses. Answers will be posted on Friday, April 15.
- Author: Belinda J. Messenger-Sikes

(Credit: Jack Kelly Clark)
All mistletoes infest and grow as parasites on trees and large shrubs. In some cases, the host plant can be severely damaged. But recent studies have shown that broadleaf mistletoes can shelter and feed wildlife, including birds and small mammals. So, mistletoes are both parasitic plants and bird food!
Because mistletoes can damage trees, you may decide to do something about mistletoes infesting your trees. The first step is to find out whether you're dealing with broadleaf or dwarf mistletoe. Mistletoes differ in their life cycles, the damage they cause and management methods. UC Cooperative Extension Advisors Igor Lacan (San Mateo and San Francisco Counties), Steven Swain (Marin County) and Ed Perry (Stanislaus County,...