Integrated Pest Management

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May IPM tips
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May Pest Prevention Tips

May 6, 2024
By Lauren Fordyce
May is here and with all the fluctuations in our weather lately, there is a lot going on in the landscape! Follow these general tips for the month of May to prevent pests. To see more tips specific to your region, visit the Seasonal Landscape IPM Checklist on the UC IPM website.
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Two round beetles with orangish red bodies and black spots on a green leaf.
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Is the Multicolored Asian Lady Beetle Bad?

May 1, 2024
By Lauren Fordyce
The multicolored Asian lady beetle, Harmonia axyridis, has a bad reputation. There is a common myth online that this lady beetle (ladybug) is invasive and aggressive, which can sometimes lead to people killing these beetles.
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Three white grubs of varying sizes curled up in a c-shape on-top of dark brown soil.
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Grubs in your garden?

April 18, 2024
By Lauren Fordyce
While preparing your garden for planting this spring, you may have found white grubs in the soil. Discovering these fairly large, white grubs can be alarming, but they usually won't cause significant plant damage.
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Visit the UC IPM Seasonal Landscape IPM Checklist for a list of pest prevention activities for each month.
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April Pest Prevention Tips

April 3, 2024
By Lauren Fordyce
Spring is here and if you are like us, you can't wait to get outside and see how your plants and garden are doing! As usual, UC IPM has useful tips for the month of April to prevent pests in the garden and landscape.
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Leaffooted bug eggs. Photo by David R. Haviland, UCCE.
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Easter Egg Hunt Answers!

April 1, 2024
By Lauren Fordyce
Below are answers to UC IPM's 2024 insect Easter egg hunt! Click on the name of each insect to learn more. A. Brown marmorated stink bug These eggs belong to the brown marmorated stink bug (BMSB) a pest of many types of plants and occasional indoor nuisance.
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West Nile virus is mainly spread by Culex mosquitoes. Photo by Matthew Bertone, North Carolina State University Extension.
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Invasive Pest Spotlight: West Nile Virus

March 26, 2024
By Mackenzie F Patton
The invasive pest spotlight focuses on emerging or potential invasive pests in California. In this issue we are covering West Nile virus. West Nile virus disease was first reported in California in 2003 and has become the most common and serious vector-borne disease in California.
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Figure 1. Broadleaf plant characteristics page from the UC IPM Weed Gallery.
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Need Help Identifying Weeds?

March 26, 2024
By Karey Windbiel-Rojas
After all the winter rains you may find yourself dealing with weeds and struggling to control them. The first step in successfully controlling weeds is knowing what weed you have.
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Leaves with round holes in them and green fruit with red spots on them.
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Wet Weather Tree Diseases

March 26, 2024
By Belinda Messenger-Sikes
After years of drought, we welcome rain in California. But we also recognize that rain can help spread a number of plant diseases. Rain and wind can splash bacteria and fungi from infected leaves, branches, and blossoms to uninfected parts of the tree.
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Figure 4. Examples of lawn-concrete interface in residential settings. The picture on the left shows one of the lawn-concrete sites tested in the experiment. Photos by Dong-Hwan Choe.
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Strategic Placement of Ant Baits

March 26, 2024
By Dong Hwan Choe
Ants are one of the major seasonal pests around structures in California's urban environments. Pest management companies throughout the state report that ants are responsible for a significant proportion of their pest control services.
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A gopher poking it's head out of a mound of dirt in a lawn.
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Managing Pocket Gophers

March 26, 2024
By Niamh M Quinn, Roger A Baldwin, Carolyn Whitesell
Pocket gophers can cause significant damage to valuable turf, girdle trees, and chew irrigation lines. Their mounds can create tripping hazards and lead to erosion concerns when found on slopes.
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