herbicide


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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 ?
Seeds from radish plants that survived application of iodosulfuron herbicide were collected in wheat fields in the Northwest region of Rio Grande do Sul State.
That suits those who regard herbicides as threats to human and environmental health just fine.
Ammonium Fertilizers: Ammonium fertilizers are often added to herbicide mixes in range and row crops where the addition of fertilizer works to both enhance herbicidal effects as well as to stimulate the growth of desirable crop or forage plants.
Always mix the adjuvant with herbicide first, then add proper amount of water and mix well.
This paper's estimation of sugarcane herbicide bioconcentration relies on several assumptions: degradation in the soil and its metabolism and dilution in the plant are described by first order kinetic equation; the plant uses the water transpiration stream to uptake the herbicide from the soil solution; soil solution herbicide present in concentrations that are available for plant uptake; and the plant distributes the herbicide throughout itself by transpiration.
The International Survey of Herbicide Resistant Weeds.
Occasionally, an individual weed has a mutation that confers resistance to an herbicide or group of herbicides, and this individual survives and reproduces despite being treated with herbicide (B).
The herbicide Prowl performed nearly twice as well on vineyard weeds when combined with Alion or Matrix.
The Environmental Protection Agency is expected to rule this fall on Dow AgroSciences' application to market Enlist, a new version of the 2,4-D herbicide that's been around since the 1940s.
Herbicide consumers are mainly the plantation sector and consumers of fungicide are mainly food crop sector.
Key words: herbicide; herbicide resistant plant, herbicide tolerance genes, dehalogenases.