Master Gardeners of Ventura County
University of California
Master Gardeners of Ventura County

Posts Tagged: pesticides

That Milkweed You Buy at Retail Nurseries May Contain Pesticides

It's Sept. 4, 2019. We notice a monarch butterfly laying eggs on milkweed in an enclosed Vacaville retail nursery. We purchase the plant and add it to our pollinator garden.  Did the eggs ever hatch? Did we ever get caterpillars, chrysalids and...

A monarch laying eggs in a Vacaville retail nursery on Sept. 4, 2019. (Photo by Kathy Keatley Garvey)
A monarch laying eggs in a Vacaville retail nursery on Sept. 4, 2019. (Photo by Kathy Keatley Garvey)

A monarch laying eggs in a Vacaville retail nursery on Sept. 4, 2019. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, August 31, 2022 at 11:16 AM
Focus Area Tags: Economic Development, Environment, Innovation, Natural Resources

Scott McArt: The Risk of Pesticides to Pollinators

"The use of synthetic chemical pesticides is central to current agricultural practices worldwide. But what is the cost to wildlife via non-target exposures? This talk will summarize when there's risk to bees, when there isn't, and what types of...

Scott McArt of Cornell will speak on
Scott McArt of Cornell will speak on "Pesticide Risk to Pollinators: What We Know and What We Need to Know Better" at the Wednesday, May 4 virtual seminar hosted by the UC Davis Department of Entomology and Nematology.

Scott McArt of Cornell will speak on "Pesticide Risk to Pollinators: What We Know and What We Need to Know Better" at the Wednesday, May 4 virtual seminar hosted by the UC Davis Department of Entomology and Nematology.

Posted on Monday, May 2, 2022 at 3:00 PM
Focus Area Tags: Agriculture, Environment, Health, Innovation, Natural Resources, Yard & Garden

The Buzz About Honey Bees and Marijuana

Extension apiculturist emeritus Eric Mussen of the UC Davis Department of Entomology and Nematology, "retired" in June of 2014 after 38 years of service but his phone and keyboard at Briggs Hall gather no dust. The honey bee guru continues to answer a...

Honey bees laden with pollen returning to their colony. (Photo by Kathy Keatley Garvey)
Honey bees laden with pollen returning to their colony. (Photo by Kathy Keatley Garvey)

Honey bees laden with pollen returning to their colony. (Photo by Kathy Keatley Garvey)

Posted on Tuesday, December 15, 2015 at 9:16 PM
Tags: Cannabis (1), Eric Mussen (269), hemp (1), honey bees (434), marijuana (2), pesticides (10), pollinators (40), pot (1), UC Davis (311), weed (1)

Neonics Severely Affecting Queen Bees

Everyone from scientists to environmentalists to beekeepers are clamoring for more research on the effects of neonicotinoids on honey bees. How do neonics affect queen bees? Newly published research led by Geoffrey Williams of the Institute...

A queen bee circled by her retinue. (Photo by Kathy Keatley Garvey)
A queen bee circled by her retinue. (Photo by Kathy Keatley Garvey)

A queen bee circled by her retinue. (Photo by Kathy Keatley Garvey)

Worker bees cleaning out a queen cell. (Photo by Kathy Keatley Garvey)
Worker bees cleaning out a queen cell. (Photo by Kathy Keatley Garvey)

Worker bees cleaning out a queen cell. (Photo by Kathy Keatley Garvey)

A bee breeder's queen cells. (Photo by Kathy Keatley Garvey)
A bee breeder's queen cells. (Photo by Kathy Keatley Garvey)

A bee breeder's queen cells. (Photo by Kathy Keatley Garvey)

Posted on Thursday, October 15, 2015 at 10:34 PM

Our Bees Deserve The Best

This is National Pollinator Week and what better time to post some bee wisdom from Cooperative Extension apiculturist (now emeritus) Eric Mussen? Based in the UC Davis Department of Entomology and Nematology, Mussen completed 38 years of service last...

Extension apiculturist Eric Mussen (now emeritus, shows visitors the inside of a hive at the Harry H. Laidlaw Jr. Honey Bee Research Facility, UC Davis. (Photo by Kathy Keatley Garvey)
Extension apiculturist Eric Mussen (now emeritus, shows visitors the inside of a hive at the Harry H. Laidlaw Jr. Honey Bee Research Facility, UC Davis. (Photo by Kathy Keatley Garvey)

Extension apiculturist Eric Mussen (now emeritus, shows visitors the inside of a hive at the Harry H. Laidlaw Jr. Honey Bee Research Facility, UC Davis. (Photo by Kathy Keatley Garvey)

Extension apiculturist (now retired) Eric Mussen explains bees. (Photo by Kathy Keatley Garvey)
Extension apiculturist (now retired) Eric Mussen explains bees. (Photo by Kathy Keatley Garvey)

Extension apiculturist (now retired) Eric Mussen explains bees. (Photo by Kathy Keatley Garvey)

Inside the hive: the queen bee goes about laying eggs as worker bees tend to her needs and the needs of the colony. (Photo by Kathy Keatley Garvey)
Inside the hive: the queen bee goes about laying eggs as worker bees tend to her needs and the needs of the colony. (Photo by Kathy Keatley Garvey)

Inside the hive: the queen bee goes about laying eggs as worker bees tend to her needs and the needs of the colony. (Photo by Kathy Keatley Garvey)

Posted on Wednesday, June 17, 2015 at 5:20 PM
Tags: diseases (1), Eric Mussen (269), honey bees (434), malnutrition (1), National Pollinator Week (27), parasites (3), pesticides (10), pests (6), stress (1)

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