Weed threat means duck shooting banned at Far North lagoon

New Zealand Herald

The safety catch has been put on any duck hunting at a Far North wetland to prevent the accidental spread of an invasive aquatic weed. [Lycopus europaeus]

Read more: http://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=11849920

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DNR, EOLIC to combat curlyleaf

Iowa: Curlyleaf pondweed threatens to jam boat lifts, entangle propellers and plug motors once again in 2017. The East Okoboji Lakes Improvement Corporation, the city of Orleans and the Iowa Department of Natural Resources are partnering to reduce that difficulty by cutting paths through dense patches of the weed on East Lake Okoboji.

Read more: http://www.dickinsoncountynews.com/story/2400443.html

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Residents question Lake Iroquois herbicide proposal

Vermont: This summer will mark the biggest investment yet in Lake Iroquois’ ongoing battle with invasive Eurasian milfoil. But the remedy chosen by the Lake Iroquois Association advocacy group involves the application of an herbicide that several shoreline residents [are] wary [of].

Read more: http://www.willistonobserver.com/residents-question-lake-iroquois-herbicide-proposal/

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TWDC stocking grass carp in Woodland Waterway

Houston: Officials with the Texas Parks and Wildlife Department have given The Woodlands Development Company the green light to add triploid grass carp to The Woodlands Waterway to help address water quality issues.

Read more: http://www.chron.com/neighborhood/woodlands/news/article/TWDC-stocking-grass-carp-in-Woodland-Waterway-11093833.php

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DBW Begins Herbicide Treatment in the Delta for Water Hyacinth and Egeria Densa

SACRAMENTO, Calif. – The Division of Boating and Waterways (DBW) will begin herbicide treatment of water hyacinth and Egeria densa on March 1 in various areas of the Sacramento-San Joaquin Delta (Delta) . . .

READ MORE: http://eastcountytoday.net/dbw-begins-herbicide-treatment-in-the-delta-for-water-hyacinth-and-egeria-densa/

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Journal of Aquatic Plant Management – Volume 55, 2017

Below are the article titles for JAPM for 2017.

All articles for 2017 are now available as full PDFs online.

A review of aquatic plant monitoring and assessment methods
John D. Madsen and R. M. Wersal
Efficacy of aquatic herbicides on dwarf rotala (Rotala rotundifolia)
Carl J Della Torre III, Lyn A Gettys, William T Haller, Jason A Ferrell, and Ramon Leon
Folivory and disease occurrence on Ludwigia hexapetala in Guntersville Reservoir, Alabama
Nathan E. Harms, Judy F. Shearer, and Michael J. Grodowitz*
Aquatic plant harvesting: an economical phosphorus removal tool in an urban shallow lake.
William M. Bartodziej, Simba L. Blood, Keith Pilgrim
Do the U.S. dioecious and monoecious biotypes of Hydrilla verticillata hybridize?Dean A. Williams, Nathan E. Harms, Lynde Dodd, Michael J. Grodowitz, and Gary O. Dick   35
Mesocosm evaluation of three herbicides on Eurasian watermilfoil (Myriophyllum spicatum) and hybrid watermilfoil (Myriophyllum spicatum x Myriophyllum sibiricum): Developing a predictive assayMichael D. Netherland and Leif Willey   39
Flowering rush control on drawn-down sediment: mesocosm and field evaluationsJohn D. Madsen, Thomas E. Woolf, and Ryan M. Wersal   42
Biological control of Salvinia molesta: Population dynamics of Cyrtobagous salviniae in Lake B. A. Steinhagen
Abhishek Mukherjee, Allen Knutson, and Kevin Heinz
Heritable variation for vegetative growth rate in ten distinct genotypes of hybrid watermilfoil
Lindsey-Ann L. Taylor, James N. McNair, Paula Guastello, Jeff Pashnick, and Ryan A. Thum
Fluridone, penoxsulam, and triclopyr absorption and translocation by Eurasian watermilfoil (Myriophyllum spicatum) and Hydrilla (Hydrillla verticillata)
Joseph D. Vassios, Scott J. Nissen, Tyler J. Koschnick, and Mark A. Hielman
Evaluation of three grass-specific herbicides on torpedograss (Panicum repens) and seven non-target, native aquatic plants
Stephen F. Enloe and Michael D. Netherland*
Uruguay waterprimrose control with herbicides
Stephen F. Enloe and D. K. Lauer*
How long do shoot fragments of hydrilla (Hydrilla verticillata) and Eurasian watermilfoil (Myriophyllum spicatum) remain buoyant?
Joshua D. Wood and Michael D. Netherland*
Asexual reproduction and ramet sprouting of crested floatingheart (Nymphoides cristata)
Lyn A. Gettys, Carl J. Della Torre Iii, Kyle M. Thayer, and Ian J. Markovich
Early-season dynamics of alligatorweed biological control by Agasicles hygrophila in Louisiana and Mississippi
Nathan E. Harms and Judy F. Shearer*
Risk assessment for water spinach (Ipomoea aquatica) in Texas
Earl W. Chilton II*
Survival and vegetative regrowth of Eurasian and hybrid watermilfoil following operational treatment with auxinic herbicides in Gun Lake, Michigan
Ryan A. Thum, Syndell Parks, James N. Mcnair, Pam Tyning, Paul Hausler, Lindsay Chadderton, Andrew Tucker, and Anna Monfils*
Germination of fresh and stored Texas wild rice seeds, an endangered aquatic macrophyte
Jeffrey T. Hutchinson*
Evaluation of copper on Texas wild rice, creeping primrose-willow and waterstargrass
Jeffrey T. Hutchinson and Kenneth G. Ostrand*
Curlyleaf pondweed (Potamogeton crispus) control using copper–ethylenediamine alone and in combination with endothall
Gray Turnage and John D. Madsen*
Evaluating the efficacy of granular copper and triclopyr alone and in combination for control of flowering rush (Butomus umbellatus)
Gray Turnage, Ryan M. Wersal, and John D. Madsen*
Common duckweed (Lemna minor) consumption by blue tilapia (Oreochromis aureus) in feeding trials
W. Cory Heaton and John H. Rodgers, Jr.*
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Officials concerned: ‘Noxious’ invasive weed found in Cayuga Lake near Aurora


Aurora, NY.– Hydrilla, a potentially harmful invasive water plant, has been discovered in Cayuga Lake near Wells College.

Read more: http://www.newyorkupstate.com/outdoors/2016/09/invasive_plant_species_found_in_cayuga_lake_near_aurora.html

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Bunnings busted selling weed


Herald Sun – Australia

THE incorrect labelling of a highly invasive aquatic weed has exposed a plant wholesaler to nearly $120,000 in fines…

Read more

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Salvinia in Shreveport’s drinking water supply




“We had a dog that thought it was the grass and walked straight into the lake,” Roberts recalled.

Read more: http://www.ktbs.com/story/33162654/salvinia-in-shreveports-drinking-water-supply

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Plant-Munching Weevil Helps Botswana Contain Weeds Threatening to Overwhelm the Okavango


Three decades after the first reports of the arrival in Botswana of Salvinia molesta–a pestilential free-floating, mat-forming water fern native to Brazil–scientists …say they are at last prevailing in the struggle against the weed.

Read more: http://voices.nationalgeographic.com/2016/08/29/botswana-prevailing-in-struggle-against-weeds-threatening-okavango/

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