herbicide

(redirected from Herbicides)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

herbicide

 [her´bĭ-sīd]
an agent that is destructive to weeds or causes an alteration in their normal growth.

herbicide

[er′-, her′bisīd]
an agent that is destructive to weeds or causes an alteration in their normal growth.

herb·i·cide

(ĕr'bi-sīd)
Any chemical compound designed to kill plants. Herbicides have been used in military operations for deforestation, but the U.S. military excludes herbicides from being classified as chemical-warfare agents.

herbicide

any chemical that kills plants. Herbicides can be highly selective. For example, 2,4-D only kills DICOTYLEDONS (broad-leaved plants), leaving MONOCOTYLEDONS unharmed.

herbicide

a substance that destroys weeds. A large number of chemical compounds are used as general and selective herbicides. Most of them have very low toxicity because their availability to animals on recently sprayed pasture is an obvious toxic hazard. Most poisoning incidents arise when animals have accidental access to large volumes of the agent, e.g. if there has been a spillage. The well-known herbicide groupings are bipyridyls, chlorinated acids, dinitro compounds, phenoxyacid derivatives, thiocarbamates and triazines.
References in periodicals archive ?
The GRDC Pre-Harvest Herbicide Use Fact Sheet provides information about stewardship for in-crop herbicide use late in the season and product registrations for pre-harvest weed control and desiccation.
Rapid rise in demand for grains due to increasing population is expected to drive growth of the herbicides market globally.
Opponents of SB 613 insist that reports of human exposure to herbicides - such as the 2013 incident near Gold Beach, in which about 40 people say they were sickened after a helicopter sprayed herbicide over their homes - are usually the result of pilots not following rules that are already in place.
When crop plants were sprayed with different concentrations of post-emergence herbicides seed number produced in wheat spikes was 24.
Within types of herbicides, bio-herbicide would grow at the fastest rate reflecting 27.
Due to the extensive use of preplant and in-season tillage in some agronomic crops in California, along with the use of pre- and postemergence herbicides, herbicide resistance is not as widespread as it is in other parts of the country where no-till and minimum-till systems have been widely adopted.
company produces insecticides, herbicides, and fungicides.
Resistant weeds have become a major problem for many farmers reliant on GE crops, and they are now driving up the volume of herbicide needed each year by about 25 percent," Benbrook said.
Stephen Powles of the University of Western Australia in Perth notes that in his country, some weedy ryegrass species "can be resistant to seven different herbicide types, meaning there are almost no herbicides which still work.
Many modern chemical herbicides for agriculture are specifically formulated to decompose within a short period after application.
Dow AgroSciences (DAS) and Pioneer Hi-Bred announce they have entered into a commercial cross-licensing agreement in which DAS is licensing non-exclusively its proprietary herbicide tolerant trait technology for soybeans to Pioneer which is licensing non-exclusively its proprietary Optimum GAT trait for soybeans to DAS.
Leading herbicide expert Dr Chris Preston, of the Weeds CRC and the University of Adelaide, believes the introduction of GM herbicide-tolerant crops can provide real benefits to agriculture, but there are clear lessons from the Canadian and US experience that Australia must not ignore.