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11 Cards in this Set
- Front
- Back
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pests
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annoying, usually small, thing that destroy things
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pesticides
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a chemichal to kill pests, a sort of poison applyed to food
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some pests
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ticks, slugs, leeches, aphids, mosquitos...............................................................................
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a tick and leaches do
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suck blood
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why do we need pesticies
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to save crops, and to save people.
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what effect can they have on the food chain
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they disrupt the food chain, and if the pests eat the pesticeds poison everythin in the food chain....
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where do u use pesticides
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farmland, crops, weeds, shrubs
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what do you use pesticides for?
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to kill weeds insects and fungi
(herbicides, incecticides, fungicides) |
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what are decomposers?
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they are microbes that rot dead material or dead things. fungi and bacteria are decomposers
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compost
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used for recycling garden waste and food waste to add nutrience back to soil.
NOT MEAT or DAIRY |
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boilogical control
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is when you bring another animal in to sean to eat the pests
this is better than pesticides because you don't put poisen onto your crops. |
