Pests And Weeds

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Spaghettilike stems of Japanese dodder growing on a tree. (Credit: Vince Guise)
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Invasive Spotlight: Japanese Dodder

June 6th, 2018
By Anne E Schellman
When people think of parasites, often what comes to mind are blood-sucking insects like bed bugs, head lice, and fleas or other bodily invaders on or in humans and other animals. But plants can have parasites too.
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The flowers of French broom are attractive, but this invasive plant is not a good choice for landscapes. (Credit: Jack Kelly Clark)
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Invasive Spotlight: Invasive Plants

June 5th, 2018
By Anne E Schellman, Karey Windbiel
People in urban and suburban areas often use the term invasive to describe plants or weeds that appear to take over a garden or landscape. However, true invasive plants are weeds that infest ecosystems, rangelands, and pastureplaces common garden weeds don't thrive.
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Mature yellow nutsedge plant. (Credit: Jack Kelly Clark)
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Nutgrass Can Drive You Nuts

May 29th, 2018
By Anne E Schellman
Nutgrass, also called nutsedge, could easily be one of the top 5 nuisance weeds gardeners deal with in the garden and landscape. While we don't know that for sure, we do know that nutsedge is a very challenging weed to control.
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California burclover, an annual clover. (Photo: Jack Kelly Clark)
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Clovers: A Sign of Good Luck?

March 13th, 2018
By Anne E Schellman
In mid-March, many people use clover-themed decorations in preparation for St. Patrick's Day. Many gardens and landscaped areas are decorated with clovers too, especially with recent rains and mild temperatures in much of California.
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Poison oak stalks after leaf loss. (Credit: Anne McTavish)
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Poison Oak: Not Just a Summer Problem

February 7th, 2018
By Anne E Schellman
Campers and hikers are often warned to avoid poison oak in summer by looking out for green plants with glossy leaflets of three. However, as weather cools, the appearance of the plant changes, making it more difficult to identify.
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Flowering dandelion. (Photo: Gerald and Buff Corsi)
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Dandelions in the Landscape

January 27th, 2018
By Anne E Schellman
Dandelions are broadleaf plants easily recognizable by their bright yellow flower and puffball of white tufted seeds heads.
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