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Weed Science Society of America Warns Glyphosate Resistance Increasing

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Glyphosate, a herbicide which is marketed under various names, is widely used around the world to control a broad array of weeds in agriculture, forestry, orchards, rightsofway and around the home. Glyphosate is an especially effective and simple weed management tool for some agricultural crops that can tolerate the herbicide. However, its widespread, repeated, and often sole use for weed management has selected weeds that have become glyphosate resistant and are thus not controlled by this herbicide. more »

Giant Cousin of the Carrot Plagues Backyard Gardeners with Blisters and Burns

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Well-known garden plants such as carrots, parsnip and dill have cousins with some nasty characteristics. Giant hogweed (Heracleum mantegazzianum), common hogweed (Heracleum sphondylium) and their hybrids were introduced into the United States from Europe in the early 1900s as showy garden ornamentals. But they can pack a painful punch. more »

Beetles Help Take a Bite Out of One of the Word’s Most Aggressive Weeds

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Over the past decade, beetles have taken a major bite out of purple loosestrife, one of the world’s most aggressive weeds. Featured on “the most noxious weeds” list in 33 states, purple loosestrife (Lythrum salicaria) is especially a problem in the Midwest where it clogs wetlands and waterways. In the early 1990s, researchers in Minnesota were among the first to try a biological-based approach for beating back the weed. They released two types of loosestrife beetles (Galerucella calmariensis and Galerucella pusilla) that love to munch on purple loosestrife foliage. more »

Algae Harboring Hydrilla Causing Bald Eagle Deaths in the Southeast

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The aquatic invasive plant hydrilla (Hydrilla verticillata) not only is a costly nuisance impeding waterways and recreational lakes, it also may have deadly impacts on eagles and waterfowl. more »

The 9th Annual National Invasive Weed Awareness Weed (NIWAW) Reminds Us to Spread the Word, not the Weeds

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Nearly 200 scientists and invasive plant management stakeholders from industry associations, professional societies, government agencies and private organizations all over North America will gather in our Nation’s capital to raise awareness about the severe economic and environmental impacts caused by invasive plants during the 9th Annual National Invasive Weed Awareness Week, February 24 – 29. more »

Weed Science Society of America Announces Scientific Award Winners

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The Weed Science Society of America announces the winners of the prestigious Weed Science Society of America Awards, which were presented to members who displayed excellence in research, education and extension outreach activities related to weed science. Nominees were judged by their peers on the weight of their scientific accomplishments and the notable contributions they have made in their areas of expertise. These top honors were awarded on the opening day of the organization’s 48th Annual Meeting, held February 4 – 7, 2008, in Chicago. more »

The 48th Annual Meeting of the Weed Science Society of America Hosts International Experts on Weed Management

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The 48th Annual Meeting of the Weed Science Society of America will convene February 4 – 7 in Chicago, at the Hilton Chicago, 720 South Michigan Avenue. Orion Samuelson, Agribusiness Director for WGN Radio and host of the syndicated radio programs National Farm Report and Samuelson Sez, will deliver the keynote address. Nearly 400 scientists from ten countries will gather to share the latest weed science research exploring the agricultural, environmental, economic and ecological impacts of weeds and various aspects of weed management. In addition to more than three hundred professional posters and papers that will be presented. more »

Tropical Soda Apple Overshadows Some Agricultural Industries in the Sunshine State

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Tropical Soda Apple. The name may not sound particularly threatening, but in the short time it has been known to be in the United States, Tropical Soda Apple has created a veritable crisis within Florida’s agricultural industries. From cattle ranchers to hay producers and grass seed harvesters, Tropical Soda Apple has infiltrated the ranks of these agribusinesses and poses a threat to the economies of these industries. more »

Biofuel Crop: Panacea or Pandora’s Box?

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It’s a Cinderella story. Weeds, scorned and trod on for years and persistently excluded from the manicured gardens and uniform crops of respectable horticultural and agricultural society are fast becoming the darlings of a burgeoning biofuel industry. But not all fairytales have a happy ending. more »

Summer May Be Over, But Some Pesky Weeds Are Still Hard At Work

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Sure, the growing season is over and cooler weather is moving in, but don’t think the weeds in your lawn and garden are taking a little R & R. In fact, many of them, especially invasive weeds, are still vexing unsuspecting victims or are busy plotting their next move so they can come out swinging at the first hint of spring next year. more »