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Tag: Invasive species

spotted-wing drosophila feeding on strawberry puree

Fruit DNA in Invasive Flies’ Guts Could Help Track Their Dispersal

A recent study at North Carolina State University shows that DNA analysis of spotted-wing drosophila (Drosophila suzukii) flies can detect whether they fed on strawberries as much as seven days prior. Researchers hope the proof of concept will lead to more accurate analysis of the invasive pest's dispersal in the field.

Haemaphysalis longicornis

Invasive Tick Persists in New Jersey

Officials in New Jersey report that the invasive tick Haemaphysalis longicornis has successfully overwintered and was found once again on a rural property in mid-April 2018, after an infestation was reported there in 2017, the first such appearance of the species within North American borders.

Male SWD marked blue

Study Shines a (Fluorescent) Light on Invasive Fruit Fly Trapping

To estimate the catch rate of traps for invasive spotted-wing drosophila fruit flies in tart cherry orchards, researchers at Michigan State University first marked thousands of flies with fluorescent dust and released them. Then they counted the recaptured flies under ultraviolet light.

allium leafminer female ovipositing on onion plant

Invasive Fly Targets North American Onions, Leeks, Related Crops

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.

spotted lanternfly - Lycorma delicatula

Spotted Lanternfly: States Urge Citizens to Report Sightings of Invasive Insect Hitchhiker

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.

Spondylis buprestoides

Domestic Sea Trade Aids Wood-Boring Beetles’ Range Expansion

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.