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cows in a field

Sheep and cattle-killing disease carriers never take a break

Bluetongue virus, an incurable cattle and sheep-killing disease, is spread by tiny flies once thought to disappear in winter. New UCR research demonstrates that though they are harder to find when it’s cold, they remain active.

By Jules Bernstein | July 3, 2023 | Science / Technology
bumbles on a flower

When it comes to bumblebees, does size matter?

While honeybee workers are all the same size, that’s not true for bumblebees. Scientists aren’t sure what’s behind the wide variety in bumble body sizes, but a new UC Riverside project aims to find out.

By Jules Bernstein | June 6, 2023 | Science / Technology
painted lady butterfly

195 ways to help California’s painted ladies

By documenting hundreds of new nectar plants for painted ladies, scientists have renewed hope these charismatic butterflies may prove resilient to climate change.

By Jules Bernstein | October 5, 2022 | Science / Technology
Aedes aegyptii

Chemical cocktail in skin summons disease-spreading mosquitoes

A UC Riverside-led team discovered the exact chemical combination that causes Zika, dengue and yellow fever-spreading mosquitoes to locate and land on their victims.

By Jules Bernstein | September 21, 2022 | Science / Technology
Avocado weevil

The scent that could save California’s avocados

UC Riverside scientists are on the hunt for a chemical that disrupts “evil” weevils’ mating and could prevent them from destroying California’s supply of avocados.

By Jules Bernstein | September 2, 2022 | Science / Technology
citrus greening

Cousin of crop-killing bacteria mutating rapidly

A bacterial species closely related to deadly citrus greening disease is rapidly evolving its ability to infect insect hosts, and possibly plants as well.

By Jules Bernstein | August 12, 2022 | Science / Technology
Bombus vosnesenskii

Scientists fail to locate once-common CA bumble bees

Several species of California bumble bees have gone missing in the first statewide census of the fuzzy pollinators in 40 years. If they can be found, a recent court ruling could help save them.

By Jules Bernstein | June 16, 2022 | Science / Technology
mosquito feeding on finger

Genetic discovery could spell mosquitoes’ death knell

A UC Riverside genetic discovery could turn disease-carrying mosquitoes into insect Peter Pans, preventing them from ever maturing or multiplying.

By Jules Bernstein | June 14, 2022 | Science / Technology
trigona bee

When bees get a taste for dead things

Typically, bees don’t eat meat. However, a species of stingless 'vulture' bee in the tropics has evolved the ability to do so, presumably due to intense competition for nectar. UC Riverside scientists find these bees' guts resemble those of hyenas and other carrion feeders.

By Jules Bernstein | November 23, 2021 | Science / Technology
bumble

Rising temperatures overcook bumblebees’ brunch

Bumblebees pollinate many of our favorite foods, but their own diet is being upset by climate change, according to a new UC Riverside study.

By Jules Bernstein | November 10, 2021 | Science / Technology
hummingbird at flower

Hummingbirds can smell their way out of danger

In less time than it takes to read this sentence, hummingbirds can catch a whiff of potential trouble. That’s the result of new UC Riverside research showing, contrary to popular belief, the tiny birds do have an active sense of smell.

By Jules Bernstein | September 6, 2021 | Science / Technology
bees foraging

Study shows common insecticide is harmful in any amount

A new UC Riverside study shows that a type of insecticide made for commercial plant nurseries is harmful to a typical bee even when applied well below the label rate.

By Jules Bernstein | August 2, 2021 | Science / Technology
A hand holds up a cicada specimen

Cicada explosion mystifies insect experts

Doug Yanega, senior scientist at UC Riverside’s Entomology Research Museum, discusses one of nature's unsolved mysteries: the 17-year life cycle of cicadas in the Eastern U.S.

By Jules Bernstein | May 13, 2021 | Science / Technology
beekeeper

Scientists developing new solutions for honeybee colony collapse

The University of California, Riverside, is leading a new effort to stop and reverse a worldwide decline in honeybees, which threatens food security and prices.

By Jules Bernstein | January 7, 2021 | Science / Technology
Citrus gifts products

UCR Citrus Gifts expands online with citrus and honey-infused marmalades, soaps, and more

The fruits of UC Riverside’s research are even easier to enjoy with the Citrus Gifts collection expanding its line of products and making them available online. The collection, featuring marmalades and olive oils from citrus and bee research, have been sold in campus stores for about six years. In June...

By Imran Ghori | August 10, 2020 | University
grape leaf galls

Scientists unlock genetic secrets of wine growers’ worst enemy

Following a decade-long effort, scientists have mapped out the genome of an aphid-like pest capable of decimating vineyards. In so doing, they have discovered how it spreads — and potentially how to stop it. The research team’s work on the genome was published this past week in a BMC Biology...

By Jules Bernstein | July 29, 2020 | Science / Technology
chicken wearing a backpack sensor

Parasite infestations revealed by tiny chicken backpacks

Blood-feeding livestock mites can be detected with wearable sensor technology nicknamed “Fitbits for chickens.” To help farmers detect mite infestations, a team of entomologists, computer scientists, and biologists led by UC Riverside entomologist Amy Murillo has created a new insect detection system. The team’s work is detailed in the journal...

By Jules Bernstein | July 13, 2020 | Science / Technology
A native California bee on a desert dandelion

Does urbanization homogenize regional biodiversity in native bees?

First survey of California’s bees in 50 years will look for effects of habitat destruction

By Holly Ober | May 11, 2020 | Science / Technology
A Halictus ligatus sweat bee feeding on a flower, marked with a blue dot by researchers

Flower faithful native bee makes a reliable pollinator

Just like us, the humble sweat bee has a daily routine

By Holly Ober | March 4, 2020 | Science / Technology

Sugar-poor diets wreak havoc on bumblebee queens’ health

UC Riverside study shows that without adequate sugar, a bumblebee queen’s fat body, which functions like a human liver, does not correctly produce enzymes required for healthy metabolism and detoxification from pesticides.

By Jules Bernstein | February 27, 2020 | Science / Technology
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