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Pesky Weeds . Agriscience Mr. Bailey. Weeds Around Kentucky!. CREEPING CHARLIE. KY. BLUEGRASS. THISTLE. What is a Weed?. A weed is a plant that grows where it is not wanted Examples W heat growing in an oat field; the wheat is considered a weed. . Why are weeds considered pests ?.
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Pesky Weeds Agriscience Mr. Bailey
Weeds Around Kentucky! CREEPING CHARLIE KY. BLUEGRASS THISTLE
What is a Weed? • A weed is a plant that grows where it is not wanted • Examples • Wheat growing in an oat field; the wheat is considered a weed.
Why are weeds considered pests? • Weeds can be considered pests for many different reasons. They can: • Harbor insects and disease • Compete with agricultural crops for sunlight, water and nutrients • Grow to big sizes and can block sunlight from other plants
Why are weeds considered pests? • It can sometimes lower the quality of the crop • If incorporated with grain it is not as good for animals or humans • Sometimes the seed can even be poisonous 6. Seed fast and spread quickly
How are weeds controlled? • People have many ways of controlling weeds • Hoeing or pulling up weeds • Animals have been used • The best way is herbicides
What is a herbicide? • A substance that is used to kill plants • There are two kinds of herbicides: • Selective- these will kill only certain types of plants • Non-selective- these will kill all plants that it comes in contact with
Exit Slip • Explain what a weed is in Agriculture. • Name three ways that weeds can be controlled in Agriculture. • Name the two kinds of herbicides used in the Agriculture Industry.