McArt and colleagues are using mass spectrometry techniques to analyze 500 samples and identify chemical residues. The Cornell lab can process up to 50 samples a week. Each sample costs about $120 to test; an anonymous private donor came forward to fund the project.

In January 2025, commercial beekeepers discovered sudden mass honey bee colony losses (60-100%).

March 25, 2025 - The record loss of honeybees follows figures released last year showing that, conversely, there are now an all-time high number of honeybee colonies in the US – 3.8m, around 1m more than five years previously.

Similar losses were previously seen in 2023 in Florida, where up to 90% of colonies died. Initial findings from that event are still undergoing peer review but the evidence suggests the deaths were due to a mix of chemical exposures and novel pathogens.

April 7, 2025 - This year, commercial beekeepers in the U.S. lost about 60% of their bees – more than double average losses. What do those losses mean for beekeepers, and what do we know about the cause?

March 26, 2025 - Honeybee deaths in the United States ... — about 68 percent of the country’s bees. “The start of the 2025 almond pollination season was met with unprecedented colony losses which have shaken the beekeeping industry....

March 26, 2025 - I came to the subreddit because I couldn't figure out why, after many years, I only have minimal honeybees in my pollinator garden when, at this time of year, they were plentiful. Bumble bees are fine. Do you know if the extreme heat is also affecting them, making them more vulnerable? June 28, 2025

March 2, 2025 - Here at Pacific Northwest Honey Co., we’ve watched this unfold with heavy hearts. Reports from beekeepers nationwide, including posts on X and a chilling Forbes article from February 6, 2025, reveal a “full panic” in the industry.

March 26, 2025 - Honeybee colonies in the United States are projected to decline by up to 70% in 2025, entomologists at Washington State University said Tuesday.

Apis mellifera is a managed pollinator that experiences cycles of extreme losses at the population level. Several culprits have been associated with these mass losses. Most notably, the parasitic mite Varroa destructor is a consistent suspect in periodic mass losses of honey bee colonies.

March 31, 2025 - Bees play a key role in the U.S. food supply, and the mass deaths could jeopardize that.

May 16, 2025 - Beekeepers became aware of the die-off in January as they prepared to transport hives to California for almond pollination. Project Apis m. says this event echoes the 2007-08 outbreak of colony collapse disorder (CCD), when as much as 70% of a colony was suddenly wiped out.

July 8, 2025 - Experts scrambling to understand losses in hives across the country are finally identifying the culprits. And the damage to farmed bees is a sign of trouble for wild bees too

In January 2025, beekeepers again discovered sudden losses. In response, surveys were shared to determine the extent of the problem and samples were collected.

April 14, 2025 - Extension apiculturist David Tarpy explains the factors that could be causing an unusually high loss of honey bee colonies so far this year, what that means for crop production and how we can support pollinators this summer.

March 5, 2025 - Commercial beekeepers in Texas have lost about two thirds of their honey bees since June last year, according to a recent survey.

February 23, 2025 - Commercial beekeepers across the country are reporting sudden deaths of honey bee colonies. One industry official called the losses unprecedented.

March 13, 2025 - In 2006 when Colony Collapse Disorder was first seen in large numbers of commercial migratory honeybee hives in the USA, Dr. Marla Spivak, world renowned Bee Researcher at U of MN coined the phrase "death by 1000 cuts" to describe what was wrong with our bees.

ARS scientists collected colony ... February 2025, prior to almond pollination. The USDA-ARS Bee Research Laboratory in Beltsville, MD, analyzed the parasites and pathogens from all samples and focused on individual bees exhibiting behavior known to precede death by minutes ...