The allium leafminer damages crops such as onions, garlic, shallots, and leeks through larval feeding and adult egg-laying in plant tissue. Native to Europe, the invasive species was first discovered in North America in December 2015 in Lancaster County, Pennsylvania.
First encountered in the United States in Pennsylvania in 2014, the spotted lanternfly had spread to New York, Delaware, and Virginia by early 2018. The invasive insect threatens Tree of Heaven as well as grapes, hops, and fruit trees, and it has a penchant for hitchhiking. Anyone sighting spotted lanternfly is urged to report it to their state agriculture department or local extension office.
The Aedes aegypti mosquito typically prefers humid climates, but it has gained a foothold in the arid southwestern U.S. by using manmade containers for breeding sites—in particular, flower pots and the saucers underneath them.
In 2017, specimens of an "unusual-looking" tick were discovered in New Jersey and determined to be a species, Haemaphysalis longicornis, native to Asia. No established population of the species has ever been previously documented in the United States.
A study by entomologists in Italy found that the abundance of bark- and wood-boring beetles outside their native range but still within the same country is correlated with levels of trade at nearby sea ports, suggesting domestic sea transportation plays a role in insects' intra-country range expansion.
What happens in the forest after Emerald Ash Borers kill a tree?
The little yellow ant is a tropical species, native to Madagascar, but now it's been found in Florida.
By Andrew Porterfield The red-eyed, spotted fly first appeared in the United States in strawberry, raspberry, and blackberry crops in Santa Cruz County, California, in 2008. Then the Southeast Asian […]
What can we learn about ambrosia beetles in their native host ranges?
Last fall, researchers at Wright State University announced they had found that emerald ash borer can develop from larvae to adulthood on a species of olive tree. Today, that study […]
By Andrew Porterfield The Asian longhorned beetle (Anoplophora glabripennis) has been an invasive pest in North America since 1996, when it arrived from China and Korea, probably through infested wood-packing […]
A Termite-Control Twofer: How Baiting One Colony of Formosan Subterranean Termites Can Knock Out the Colony Next Door
By John P. Roche Termites pose huge economic costs because they consume wood in buildings. Worldwide, termite control and termite damage cost $40 billion annually. The Formosan subterranean termite, Coptotermes […]
For National Invasive Species Awareness Week, we've collected some helpful resources.
Today kicks off National Invasive Species Awareness Week, organized by the Reduce Risks from Invasive Species Coalition. A great number of invasive species of concern in the United States are […]
By Ed Ricciuti As scientists fight to keep a step ahead of an invasive aphid that can genetically reinvent itself to penetrate the defenses of wheat varieties designed to resist […]
Managing invasive species is a top-line priority; the ESA-led Grand Challenges initiative has convened entomologists from around the world to collaborate on sustainable solutions to insect problems.