To Control Lekking Fruit Flies, Male Size Matters (Except When it Doesn’t)
A study of two significant pest fruit fly species finds that the size of males influences female mating choice in one of the species, but not in the other—important knowledge for fine-tuning management efforts for both species via the sterile insect technique.
Research Confirms First Bed Bug Infestation in Costa Rica in Over 20 Years
A bed bug infestation hadn't been seen in Costa Rica since the late 1990s—until now. Researchers at the University of Costa Rica have confirmed that specimens collected from a home near San Jose in 2017 are indeed bed bugs and, surprisingly, of the temperate-zone species Cimex lectularius and not the tropical bed bug, Cimex hemipterus.
Rising Temperatures Could Stunt Growth, Threaten Survival of Common Damselfly
In the wetlands of the southern plains of the United States, the damselfly Enallagma civile thrives, but a new study shows rising temperatures could affect the growth, development, and survival of the species in the region.
“Natural” Oil Mosquito Repellents May Fend Off Mosquitoes—Briefly
A recent Journal of Medical Entomology study investigates the ability of essential oils to repel mosquitoes.
For Less Bee Bycatch, Leave Geraniol Out of Japanese Beetle Traps
New research shows traps with eugenol and phenethyl propionate—and leaving out geraniol—remain effective in catching Japanese beetles but significantly reduce bycatch of native bees. Plus, entirely green, brown, black, or red traps are least attractive to native bees.
Study Shines Light on ID’ing Males, Females of Endangered Beetles
In two endangered beetle species that live in the Edwards Aquifer in Texas, males and females are nearly indiscernible. A new study suggests the quickest way to ID males versus females is to shine a light through them, illuminating internal organs that reveal the difference.
The Eyes Have It: How Butterflies Navigate to Suitable Habitat
Do butterflies find suitable habitat through vision or via other senses? The results of a new study were easy to see: Butterflies with flash-induced blindness consistently failed to navigate to target habitat that unaffected butterflies could readily find.
Building-Wide Pest Management Program Stops Cockroaches From Moving Nextdoor
A study of the spatial distribution of German cockroaches in a high-rise apartment building found infestations were clustered in groups of adjacent units. But a building-wide integrated pest management program can be successful in eliminating most infestations and, importantly, stopping the cockroaches from migrating from one apartment to the next.
New Guide Offers IPM Tips for Japanese Beetles in Soy and Corn
An invasive species established in the eastern United States for more than a century, the Japanese beetle is making its way into Midwestern soybean and corn fields. A new review in the Journal of Integrated Pest Management offers a guide to the pest's biology and behavior and methods to fend it off.
Climate Change Could Open Doors, Close Others for Spread of Japanese Beetle
A new study modeling potential future climate-change scenarios finds the potential for the invasive Japanese beetle to expand its range northward into new regions in North America, though some parts of it southern range could become too warm for it.
Black-Orange-Black Color Pattern Found in 23 Families of Wasps, Bees, and Ants
Well-known in Lepidoptera and Coleoptera, the distinct black-orange-black color pattern has never been fully documented in Hymenoptera—until now. A study of more than 1 million wasp, bee, and other hymenopteran specimens finds a wide range of variations of the pattern present in 23 families within the order Hymenoptera.
Propolis Power-Up: How Beekeepers Can Encourage Resin Deposits for Better Hive Health
When honey bees produce more propolis, a waxy resin they use for sealing up their hives, overall health benefits to the colony ensue. A new study tests a few simple methods beekeepers can use to encourage more propolis production in their hives.
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.
Array of Management Methods Needed to Curb the Pesky Squash Vine Borer
The larva of the squash vine borer burrows into the stems and crowns of squash, zucchini, and pumpkin plants, causing wilting damage. A new guide in the open-access Journal of Integrated Pest Management outlines a variety of management methods to combat the squash vine borer.
Harlequin Bug Coloration Influenced by Temperature During Nymphal Stages
A new study shows that harlequin bugs can adapt their pigmentation (or melanin levels) during their developmental stages based on outside temperatures. Such thermal melanism enhances the pest species' potential to invade new regions and environments.
More Research Needed to Better Balance Honey Bees and Native Bees
A review of existing research on floral resource competition between managed honey bees and wild bees shows gaps in our knowledge about such interactions and calls for further research to better inform decisions on honey bee management and pollinator protection.