Rangelands

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A person looking at a bottle of 20% acetic acid vinegar weed killer with a signal word DANGER.
Pests in the Urban Landscape: Article

Can I Use Vinegar to Control Weeds?

July 18, 2024
By Lauren Fordyce
Acetic acid, also known as vinegar, is used in products for weed control. Many people choose it because it is natural. However, acetic acid can damage skin and eyes, especially at concentrations commonly found in weed killers.
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Luca Carmignani, Ph.D., asesor contra incendios de UC ANR, experto en materia de incendios realizó una serie de videos con consejos apropiados para la temporada.
Nuestra Comunidad: Article

Comenzó la temporada de incendios

July 18, 2024
By Diana Cervantes
Llega la temporada de incendios y, aunque la mayora de las personas saben que deben tomar ciertas medidas, pocas veces lo hacen. En la Divisin de Agricultura y Recursos Naturales de la Universidad de California, este tema se toma muy en serio.
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A long, speckled brown insect with a pointed head on a green leaf.
Pests in the Urban Landscape: Article

What are exotic and invasive pests?

July 16, 2024
By Belinda Messenger-Sikes
Exotic and invasive pests threaten California's natural environments, agricultural production, structures, landscapes and gardens. Exotic pests are organisms introduced into an area beyond their natural range and become pests in the new environment.
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The resident crab spider nails a honey bee, as another bee continues to forage in the lavender. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Saga of the Spider and the Bee

July 15, 2024
By Kathy Keatley Garvey
(Continued from the July 13th Bug Squad) Our resident crab spider, family Thomisidae, appears to be an extremely poor hunter. She waits, camouflaged in the lavender patch, as bees buzz around her. They dart away when she lunges at them.
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A canal of water next to a fenced area with residential homes and trees.
Pests in the Urban Landscape: Article

Urban Pesticides, Fertilizers, and Water Quality

July 14, 2024
By Belinda Messenger-Sikes
Pesticides and fertilizers applied around homes, residential or commercial landscapes, school sites, and other areas can enter our creeks, rivers, and oceans, degrading water quality.
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A crab spider lies in wait, as a honey bee nectars on a lavender blossom. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

The Spider and the Bee

July 12, 2024
By Kathy Keatley Garvey
A crab spider, family Thomisidae, lies motionless in a patch of lavender, waiting to ambush a honey bee. So here I am, a crab spider, as hungry as can be Does anyone out there feel sorry for me? "Yes," say the arachnologists. The apiculturists say "no.
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A blister beetle (family Meloidae) eating pollen from the Mexican sunflower, Tithonia rotundifola. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

The Secret Life of a Blister Beetle

July 11, 2024
By Kathy Keatley Garvey
Blister beetles (family Meloidae) are so named because they emit a poisonous chemical, cantharidin, that can blister your skin. Don't even think about touching them! Blister beetles can infest alfalfa hay, and are toxic--even deadly--to livestock.
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A honey bee nectars on lavender in a Vacaville garden. The soft pastel colors almost resemble a painting. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Our Buddies in the Garden

July 9, 2024
By Kathy Keatley Garvey
When you venture into your pollinator garden, look for the beauty, color, diversity and the intensity that surrounds you. You will be astounded. A honey bee nectaring on lavender in a soft-pastel scenario. A katydid nymph crawling (backlit) on a blanketflower, Gaillardia.
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These three entomologists were trained directly or indirectly by Jerry Powell (1933-2023) of UC Berkeley. From left are Dan Rubinoff, John De Benedictus and Paul Opler (1938-2023) at a gathering of lepidopterists in 2019 at the Bohart Museum of Entomology. Powell and Paul Opler (1938-2023) co-authored Moths of Western America, published in 2009. (Photo by Kathy Keatley Garvey)
Bug Squad: Article

Meet 'The Moth Man' at Bohart Museum's Moth Night

July 9, 2024
By Kathy Keatley Garvey
Meet "The Moth Man." If you attend the Bohart Museum of Entomology's annual Moth Night celebration, affiliated with National Moth Week, you'll meet John De Benedictis, better known as The Moth Man. The indoor-outdoor event, free and open to the public, is set from 7 to 11 p.m.
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