Notifications

Loading...

Manage Pests

Home & Landscape

Home, Garden, Turf and Landscape Pests Blog Webinars Video Invasive and Exotic Pests
Tools
Pesticide Active Ingredient Database Plant Problem Diagnostic Tool Seasonal Landscape IPM Checklist Wildlife Identification Tool Natural Enemies Gallery Weed Gallery
Resources
Landscape Professionals Multi-unit Housing Managers Retail Nurseries and Garden Centers Schools and Child Care Centers Structural Pest Management Professionals UC Master Gardeners

Agriculture

Pest Management Guidelines Invasive and Exotic Pests Pesticide Information
Tools
Bee Precaution Pesticide Ratings Decision Support Weather, Models and Degree Days
Resources
Glossary Mitigating Pesticides Natural Enemies Gallery Pest Management Sites Weed Gallery

Natural Areas

Natural Area Pests
Events and Trainings
About

Search
Donate

Account Settings

Search

search

Home

Gummosis on Portuguese laurel, Prunus lusitanica caused by Phytophthora sp.

Dark red gummy deposits on tree bark. Credit: Steven V. Swain, UC Cooperative Extension Marin and Sonoma Counties — Credit: Steven V. Swain, UC Cooperative Extension Marin and Sonoma Counties

Managing Pests

Agriculture
Home and Landscape
Natural Area Pests
Pesticide Safety
Invasive and Exotic Pests

About

About UC IPM
Annual Reports
UC IPM Strategic Plan
UC IPM Programs
What is IPM?
What's New

Resources

Glossary
Links
Pesticide Information
Publications and Newsletter
Recursos en español
Trainings and Events

Get In Touch

Contact Us
Feedback

Home and Landscape: Instagram | Facebook

Use Permissions and Citations | Nondiscrimination Statement | Acknowledgements | Accessibility | Privacy Statement | Staff-Only Page

©1996—2026 Statewide IPM Program, Agriculture and Natural Resources, University of California Regents of the University of California unless otherwise noted.