In 1946, imported beetles were released against toxic St. Johnswort in northern California; by 1957, the weed had fallen to less than 1% of its former abundanceBy the 1940s, European Klamathweed had established itself as a major rangeland threat in California. To combat this invasive species, leaf ...
30 Aug, 2026, 02.40 PM IST
In 2023, Arizona State University began planning a 1-2-acre pollinator garden by Phoenix’s Salt River. Today, the project aims to restore habitat and support pollinatorsA pollinator demonstration garden is planned for South Central Phoenix. This project aims to create vital habitat for declining pollinator ...
30 Aug, 2026, 02.07 AM IST
In 2018, Natasha Whetzel helped burn 20 acres at Delaware’s Hurley Tract to restore habitat. 10 weeks later, native purple love grass had spread extensively, transforming the site into habitats for birds and pollinatorsConservation work in southern Delaware is helping restore and protect important habitats within the Nanticoke River watershed. At Middlefor...
30 Aug, 2026, 01.00 AM IST
In 2002, Shattuck Chemical agreed to pay $1.25 million for restoration of South Platte River following years of chemical release. 10 years later, the river was restored for migratory birds and native speciesHazardous substances near Shattuck Chemical Company prompted a settlement for restoration projects. Funds supported habitat improvements al...
28 Aug, 2026, 11.48 PM IST
In 2012, Ray Milewski and students set research plots at Pennsylvania's Tannersville Cranberry Bog. 10 years later, researchers cleared shrubs to help rare native plants return to the bogIn 2012, Ray Milewski and students established research plots at Pennsylvania’s Tannersville Cranberry Bog. A decade later, researchers cle...
27 Aug, 2026, 06.40 PM IST
Invasive tree of heaven is helping spotted lanternflies spread across US by feeding them its toxic sap; here’s why scientists are using it as a trapThe tree of heaven, an invasive species, facilitates the spread of the spotted lanternfly by providing an abundant source of plant sap. To ...
26 Aug, 2026, 01.48 PM IST
In 1772, Benjamin Franklin sent Chinese tallow seeds to Savannah, Georgia; the government planted more along the Gulf in 1900, and the tree now covers 185,000 hectaresIn the late 1700s, a shipment of 1772 seeds sparked a significant invasion of non-native trees across southern U.S. forests. The federal pl...
25 Aug, 2026, 02.00 PM IST
In 1990s, Samoa released a predatory flatworm as a weapon against giant African land snails. 49 years later, the predator has outlived its original target-control mission and threatens native snails insteadThe introduction of the predatory flatworm, Platydemus manokwari, to Samoa aimed to tackle the invasive giant African snails. However, this...
21 Aug, 2026, 10.49 PM IST
In 1985, the first invasive lionfish spotted off Florida after aquarium release; in three decades, they spread from Gulf of Mexico to the southern CaribbeanThe invasive lionfish, first introduced in the 1980s, has quickly proliferated across the Western Atlantic, extending its reach from Florid...
20 Aug, 2026, 04.35 PM IST
In 1914, USDA researchers imported Australian melaleuca seeds into the United States. 100 years later, the fast-growing tree had conquered 500,000 acres of South Florida after being planted to help dry the EvergladesAustralian melaleuca seeds were imported to the United States in 1914 for agricultural purposes. Later, the Army Corps of Engineers planted...
20 Aug, 2026, 01.11 AM IST
In the 1990s, a predatory flatworm was released in Samoa to control giant African snails; it later drove native island snails toward extinctionBiological control efforts introduced the New Guinea flatworm to Pacific islands. This predator began hunting native land snails, pushing t...
19 Aug, 2026, 06.58 PM IST
After someone planted golden bamboo beside an Oʻahu road, the single ornamental planting escaped and grew into a 1-acre patch, crowding out native plantsGolden bamboo, once a beloved addition to gardens, is now recognized as an invasive menace. Its rapid growth through underground rhizomes t...
18 Aug, 2026, 06.50 PM IST
In 1500s, Spanish explorers introduced pigs into North America. Now areas where they roam free have fewer invasive speciesAlthough wild pigs have long been viewed as destructive invasive species, recent findings reveal they also play a surprising role in curbin...
18 Aug, 2026, 05.44 PM IST
How a mosquitofish brought in to kill mosquito larvae became major freshwater ecosystem problemA fish introduced to Hawaii over a century ago now threatens native freshwater wildlife. The mosquitofish, brought to control mosquitoes, n...
17 Aug, 2026, 11.34 AM IST
In 1920, Washington planted 507 Norway maples along 16th Street to honor its war dead; the invasive species later spread into Rock Creek ParkIn 1920, Washington DC planted Norway maples as a tribute to World War I veterans. Initially seen as a living memorial, these trees became ...
13 Aug, 2026, 04.00 PM IST
In the early 1970s, Maui planted miconia for its spectacular purple leaves; its descendants spread across East Maui and threatened native forest watershedsIntroduced to Maui in the 1970s, Miconia calvescens, known as the velvet tree, has emerged as a significant invasive species. Its swift spr...
13 Aug, 2026, 03.50 PM IST
In the early 1900s, Hawaiʻi imported a thorny European shrub to feed sheep and fence pastures; it now forms 6-foot walls that fuel fires and sprout againGorse, introduced to Hawai'i around 1900 for sheep fodder and fences, has become a persistent invasive problem. This spiny shrub thrives in...
13 Aug, 2026, 03.00 PM IST