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  2. Herbicide - Wikipedia

    en.wikipedia.org/wiki/Herbicide

    Herbicides do not prevent weeds from germinating but they kill weeds as they grow through the herbicide-treated zone by affecting the cell division in the emerging seedling. Dithiopyr and pendimethalin are preemergence herbicides. Weeds that have already emerged before application or activation are not affected by pre-herbicides as their ...

  3. Pesticide application - Wikipedia

    en.wikipedia.org/wiki/Pesticide_application

    A manual backpack-type sprayer Space treatment against mosquitoes using a thermal fogger Grubbs Vocational College students spraying Irish potatoes. Pesticide application is the practical way in which pesticides (including herbicides, fungicides, insecticides, or nematode control agents) are delivered to their biological targets (e.g. pest organism, crop or other plant).

  4. Here are 6 things to know before using pesticides in and ...

    www.aol.com/6-things-know-using-pesticides...

    Our homes and gardens are important to us and pests often invade our space and attack our plants. Here are 6 things to know before using pesticides in and around your home Skip to main content

  5. Crop desiccation - Wikipedia

    en.wikipedia.org/wiki/Crop_desiccation

    The plants soon begin to wilt and quickly dry out in the sun. Plants can burn within hours of exposure to these herbicides. [ 16 ] In contrast, Photosystem I inhibitors such as diquat and paraquat work by entering plant cells and immediately diverting electrons away from photosynthetic chain, poisoning photosynthesis .

  6. Pesticide - Wikipedia

    en.wikipedia.org/wiki/Pesticide

    The word pesticide derives from the Latin pestis (plague) and caedere (kill). [5]The Food and Agriculture Organization (FAO) has defined pesticide as: . any substance or mixture of substances intended for preventing, destroying, or controlling any pest, including vectors of human or animal disease, unwanted species of plants or animals, causing harm during or otherwise interfering with the ...

  7. Environmental impact of pesticides - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Pesticides, because they are toxic chemicals meant to kill pest species, can affect non-target species, such as plants, animals and humans. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, because they are sprayed or spread across entire agricultural fields. [1]

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