Dictionary » H » Herbicide



(Science: chemical) a chemical used to kill or control the growth of plants. Some herbicides (such as synthetic auxins and triazine) selectively kill broad-leaved plants while leaving grass-leaved plants (i.e., cereal crops) unharmed.

Other herbicides, such as paraquat, kill all plants. Herbicide use has dramatically increased crop Yield worldwide but has caused serious environmental problems, polluting soil and water and causing health hazards for humans and animals.

See: pesticide. a chemical agent that destroys plants or inhibits their growth.Chemicals that have been specifically made to kill plants, or more importantly specific plants. They may be used in a certain crop to eliminate competition for resources in the area and allow the crop to grow to its potential.

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China injects uncertainty into world of genetically modified

... era in weed management fast approaching farmers. Monsanto and competitor Dow AgroSciences are on the verge of introducing the next generation of herbicide-resistant corn, soybeans and cotton — genetically modified seeds representing hundreds of millions of dollars in research and the promise ...

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by Sheppie
Mon Jan 19, 2015 11:59 am
Forum: Botany Discussion
Topic: China injects uncertainty into world of genetically modified
Replies: 0
Views: 504

Red lichen on most rocks but not some

... the bottom of the lichen growth may of oversprayed from drift onto t he rocks and killed the lichen in that area, any selective or non selective herbicide would do this. If you look closely there appears to be a lot of dead what look like weeds directly in front of the the whiter rocks.

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by vk4vfx
Wed Nov 20, 2013 8:55 am
Forum: Botany Discussion
Topic: Red lichen on most rocks but not some
Replies: 3
Views: 2468

effects of transgenic plants

Hi all, What is difference between control weeds by transgenic plants, chemical herbicide and bioherbicide? Chemical herbicide control weed through spray chemicals but how transgenic plants control weeds? I need our suggestion and share your idea.

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by kanagasundar
Tue Mar 12, 2013 9:33 am
Forum: Molecular Biology
Topic: effects of transgenic plants
Replies: 1
Views: 1763

Impact of dioxin on human health!

... for any language-fails!) who in a few days have an exam. The exam is about Agent Orange in the subjects History and Biology. Agent Orange was an herbicide used under The Vietnam War to remove leaves from the trees to see where the enemy hid. But Agent Orange contamines the very toxic TCDD, dioxin. ...

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by KScheel
Mon May 21, 2012 6:13 pm
Forum: General Discussion
Topic: Impact of dioxin on human health!
Replies: 0
Views: 1952

Re: What is the experiment/chemical called to test plant's life?

That was the research I did to see the effective of herbicide on weeds. We collected the weed root samples with various condition and look at the amount of living cells that were presented in the roots. When living parts were detected, the parts would ...

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by crazylullaby
Wed Dec 07, 2011 12:41 am
Forum: Botany Discussion
Topic: What is the experiment/chemical called to test plant's life?
Replies: 6
Views: 2883
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