Biotechnology A wild plant that has been accidentally pollinated by a genetically-modified plant and now contains that plant's abilities to resist herbicides and insects
Drug slang A regional term for high-quality marijuana


a weed that has developed tolerance or resistance to a herbicide that once destroyed it.
References in periodicals archive ?
Third, there's the risk of ecological contamination, with the creation of super-weed species, or GM crops spreading their transgenes to neighboring farms, causing genetic pollution.
Through rapid adaptation, super-weeds and super-bugs develop, requiring more and more potent poisons.
The chapter on the safety debate explores human and animal health concerns and the prospect of super-weeds, super-bugs, and loss of genetic diversity, with special focus on implications for developing countries.
To follow through on the previous crop seed example: If herbicide-resistant, genetically engineered crops were to breed with their wild cousins, it could lead to the creation of super-weeds undeterred by control efforts.
Limit weeding to battles with super-weeds such as bindweed or Canada thistle, which should be sliced off at ground level with a sharp knife.
The results immediately prompted fears herbicide-resistant super-weeds could be created after researchers found w ild turnip was affected by the transfer of genes when p lanted next to oilseed rape.
The genetically-modified crops could cross-pollinate with the other plants and create superhybrids and super-weeds.
People are worried about "Frankenstein foods" and cross-pollination of herbicide-resistant crops to produce super-weeds.
Such gene flow has the potential to create new types of super-weeds that could invade and overwhelm natural ecosystems.
Reinvesting in local agriculture and local cuisines is no doubt an important response to, for example, the carbon footprint of a modern supermarket or the by-catch of a Gulf Coast shrimp operation, or the super-weeds and contaminated groundwater of a Bt cornfield.