Education English | Explanation Text : Insecticide | Insecticide is a substance that kills insects. Insecticides are sometimes called pesticides. Farmers and gardeners usually use insecticides to protect plants and animals. Apple trees must be sprayed, or many of the apples will become "wormy" with moth larvae (young).
Many livestock owners spray their livestock or dip them in an insecticide solution to protect them from flies, lice, mites, and ticks. These pests spread such diseases as cattle fever and sheep scab.
Diseases such as malaria and typhus can be controlled by using insecticides to treat the breeding places of the insects that spread the diseases.
Agricultural pesticides prevent a monetary loss of about $9 billion each year in the U.S. For every $1 invested in pesticides, the American Farmer gets about $4 in return. These benefits, however, must be weighed against the costs to society of using pesticides, as seen in the banning of ethylene dibromide in the early 1980s.
These costs include human poisonings, fish deaths, honey bee poisonings, and the contamination of livestock products. The environmental and social costs of pesticide use in the U.S. have been estimated to be at least $1 billion each year. Thus, although pesticides are valuable for agriculture, they also can cause serious harm.
Taken from The World Book Encyclopedia, 2007
To Get More “Explanation Text” please Click Here
Many livestock owners spray their livestock or dip them in an insecticide solution to protect them from flies, lice, mites, and ticks. These pests spread such diseases as cattle fever and sheep scab.
Diseases such as malaria and typhus can be controlled by using insecticides to treat the breeding places of the insects that spread the diseases.
Agricultural pesticides prevent a monetary loss of about $9 billion each year in the U.S. For every $1 invested in pesticides, the American Farmer gets about $4 in return. These benefits, however, must be weighed against the costs to society of using pesticides, as seen in the banning of ethylene dibromide in the early 1980s.
These costs include human poisonings, fish deaths, honey bee poisonings, and the contamination of livestock products. The environmental and social costs of pesticide use in the U.S. have been estimated to be at least $1 billion each year. Thus, although pesticides are valuable for agriculture, they also can cause serious harm.
Taken from The World Book Encyclopedia, 2007
To Get More “Explanation Text” please Click Here
No comments:
Post a Comment