Mixing It Up: Mixed-Crop Fields Can Boost Natural Biocontrol of Insect Pests
A new study shows that growing a variety of crops in the same field increases local insect diversity and even improves the ratio of natural-enemy insects to pest insects.
Need to Mail Mosquitoes? Pack Them Up Nice and Snug
Several emerging mosquito-management methods require the transport of mosquitoes to precise locations. There, lab-reared mosquitoes—for instance, sterilized males—mix with wild mosquitoes and hinder the population's ability to reproduce or transmit disease. But, getting mosquitoes from lab to wild presents logistical challenges. A team led by researchers at New Mexico State University are tackling this problem and have made a surprising discovery about just how tightly live mosquitoes can be packed up.
Beer Brewers’ Spent Yeast Could Be Next Bait for Fruit Fly Pest
Researchers in China say a protein bait derived from leftover brewer's yeast attracted more spotted-wing drosophila flies than existing attractants in a lab test.
Tabloid Sensationalism Aside, Lady Bugs Are Still Fascinating
Despite headlines to the contrary in British tabloids this fall, harlequin ladybird beetles are not killing off native species by giving them a sexually transmitted fungal infection. "There have been stories mixing up various research findings into quite sensational headlines, which is a shame because these fungi and the ladybirds are fascinating in their own right," says ecological entomologist Helen Roy, Ph.D., of the Centre for Ecology & Hydrology in Wallingford, England.
So, You Want to Study Termite Control? Step 1: Raise a Few Million Termites
Subterranean termite colonies can be as large as 1 million individuals with a foraging territory and underground galleries stretching up to 100 meters long. How does an entomologist study something that large? Here's a behind-the-scenes look at how researchers at the University of Florida have raised entire termite colonies from scratch and devised experimental setups that mimic large foraging and nesting areas while still fitting inside a lab.
Cuckoo Bumble Bees: What We Can Learn From Their Cheating Ways (If They Don’t Go Extinct First)
Learning how cuckoo bumble bees cheat the eusocial system can tell scientists a lot about how insect sociality evolves and how hosts and parasites coevolve. But, as other bees face declines, cuckoo bees will only get more difficult to study.
The Problems Driving Resistance to Bt Crops—and Some Proposed Solutions
Cotton and corn are threatened by growing resistance in the pest Helicoverpa zea (a.k.a. bollworm or corn earworm) to the insecticidal properties of Bt crops. Two researchers identify contributing factors and identify insecticide resistance management practices that could help slow the problem.
Attract-and-Kill Strategy Shows Promise for Managing Brown Marmorated Stink Bugs
By using the brown marmorated stink bugs' own aggregation pheromone, the pests can be lured into a condensed area, thereby reducing the area that a grower must spray with insecticide. A two-year study in apple orchards suggests the method could soon become economically feasible.
The Best Look Yet at the Tiny Fungus Storage Units Inside Ambrosia Beetles
Advances in microscopic imaging techniques are revealing, in unprecedented detail, the structure of mycangia—the internal organs that ambrosia beetles use to store and transport the symbiotic fungi they farm.
Organic Dust Takes a Bite Out of Ticks
Researchers at the USDA-Agricultural Research Service find promising results using clay and silicate dusts to combat lone star ticks. They hope the dusts could be a useful tool against tick species that transmit deadly pathogens to livestock.
Bees Stopped Buzzing During the 2017 Total Solar Eclipse
A study conducted during the 2017 total solar eclipse in North America found that bees remained active during partial-eclipse phases, but they essentially ceased flying during totality.
Boric Acid Kills Bed Bugs, But Only When They Eat It
Boric acid dust is a common tool in urban pest management, but a new study shows external exposure is minimally effective against bed bugs. When bed bugs ingest boric acid, though, few survive.
High Temperature, Grasshopper Diet Boost Venom Production in Lab-Reared Scorpions
Researchers in Pakistan evaluated the factors that influence venom production in scorpions, with the aim to maximize venom extraction for research and medical uses.
In the Southern U.S., Young Blacklegged Ticks’ Habitat is a Mystery
In the southern U.S., blacklegged tick larvae and nymphs can be found on hosts, but they don't otherwise show up in vegetation or—as a new study finds—in leaf litter or soil either. So where are they hiding?
Train-the-Trainer Program Multiplies Reach of IPM Knowledge
In Missouri, a series of "train-the-trainer" workshops have provided extension educators with the latest knowledge in integrated pest management to share with growers throughout the state.
For Good of the Colony, Sick Honey Bee Brood Sounds the Alarm
Honey bees detect and remove brood afflicted with parasites or pathogens. A new study shows that part of this "hygienic behavior" relies on chemical signals emitted by unhealthy brood, and brood coming from colonies bred to be more hygienic are more effective in signaling for their own removal.