Invasive Plant Guide
Sylvan Kaufman and Wallace Kaufman are the authors of Invasive Plants: Guide to Identification and the Impacts and Control of Common North American Species published by Stackpole Books. Here we update you on the latest research, control techniques, news and issues surrounding invasive plants.-
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Blogroll
Category Archives: Research
Defeating garlic mustard
For those of you faced with small patches of garlic mustard, or if you have access to a lot of volunteer labor, a new study illuminates the best times to pull or cut plants. Plants pulled before any seeds begin … Continue reading
Posted in Alliaria petiolata, Detection and Control
Tagged Alliaria petiolata, garlic mustard
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Can extra chromosomes make a plant more invasive?
In 1948 two researchers looked at polyploidy (additional sets of chromosomes) in 175 weedy species in California and found about equal numbers of diploid and polyploid weeds. They concluded that polyploidy had little to do with weediness in general, but … Continue reading
Posted in Centaurea stoebe, Research
Tagged Centaurea maculosa, Centaurea stoebe, polyploidy
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Uses and abuses of water hyacinth
Water hyacinth, Eichornia crassipes, is known as the world’s worst aquatic weed because of its prolific growth. It lowers biodiversity in tropical waterways, shelters pests like mosquitos, and causes eutrophication. But all that biomass could have its uses. Patel summarizes … Continue reading
Posted in Eichornia crassipes
Tagged Eichornia crassipes, water hyacinth
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Is life in the garden less dangerous?
You might think that plants growing in gardens would face fewer pest problems as gardeners vigilantly defend them against unsightly leaf damage and flower mangling. For introduced ornamental plants this could be just the boost they need to escape the … Continue reading
Posted in Enemy release hypothesis, Research
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Co-evolution between an invader and native plant
Following up on research that demonstrated that garlic mustard’s (Alliaria petiolata) production of chemicals detrimental to other plants declined the longer a population had been established, Lankau now reports on the ability of a native plant to resist the phytotoxins. … Continue reading
Posted in Alliaria petiolata, Research
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Invasive grasses selfish in soil conditioning
A greenhouse study on native and non-native grasses from the Great Basin looks at changes in soil nutrient levels and soil microbes among species. The researchers found that although both native and non-native grasses condition soils, the changes caused by … Continue reading
Posted in Bromus tectorum, Central West, Research
Tagged feedback, invasive grasses, soils
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Assessing plants for invasiveness
I’ve been steeped in the nuances of assessments of plant invasiveness the last few months as the Maryland Invasive Plant Advisory Committee develops an assessment for non-native terrestrial plants that grow or could grow in Maryland. Most assessments look at … Continue reading
Posted in Lonicera japonica, Rankings
Tagged climate model, Japanese honeysuckle, Lonicera japonica
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Controlling Para grass without herbicides
Para grass, Urochloa mutica, grows in the southeastern United States in fields, marshes and swamps. It spreads by runners to form dense stands. It can be controlled with herbicides, but managers often wish to avoid using herbicides in sensitive wetland … Continue reading
Posted in Florida, Uncategorized, Urochloa mutica
Tagged control, flooding, management, marsh, Para grass, Urochloa mutica
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