Pesticides are chemicals that kill pests. Farmers
often use pesticides on crops to kill unwanted pests, including insects
and rodents, to prevent them from destroying crops. Farmers choose
chemical pesticides to protect their crops because it is economical. The
benefits from using pesticides, in terms of crop yield, outweigh the
costs of using pesticides.
When the first synthetic chemical
Pesticides was developed the pesticide in 1939. It was DDT. It proved
effective against the Colorado potato beetle, an insect that was
destroying crops across the United States and Europe. Then many farmers
use synthetic chemical pesticides, organic farmers sometimes use
naturally occurring chemical pesticides on crops to control pests.
Farmers always use chemical pesticides
to protect their crops. Insects such as beetles and worms can easily
infest and destroy crops. Rodents also cause damage to crops both while
they are growing and in storage. But using pesticides allows farmers to
kill the pests without destroying their crops. Using pesticides can help
a farmer profitably produce a crop in an area where he otherwise could
not or to extend a growing season.
Pesticide
use can help to extend the shelf life of a food or maintain product
quality. In some cases, pesticides can protect human health. That is the
case with organisms on plants that can cause toxins in the plants.
Among those potential toxins is ergot, a fungus that infects some grains
and produces a toxin. When eaten in sufficient quantities the toxins
cause ergot poisoning.
Farmers use pesticides
because they act fast, quickly knocking out pests before the pests can
destroy much of the crop. In addition, many pesticides are broad
spectrum so they protect crops against more than one pest, which saves
time and money. Using pesticides is also less labor intensive than the
biological controls used by organic farmers such as crop rotation,
companion planting, hedge rows between fields and not planting large
amounts of unbroken acreage in any one crop or plant species.
But
pesticides can help to protect crops and it may remain in the plants
when farmers sell them to people, these pesticides is not easy to remove
if farmers used it too much during the growth of crops. So it is quite
important to choose the vegetables and fruits without pesticides or too
much pesticides on them. Too much pesticides on food can lead to a bad
healthy to our body. If you are not sure to tell which kinds of food are
safe to eat, you can use Greentest nitrate detector to test it, it will shows you the pesticides(nitrate) level in quickly time and shows you it is under the safe control or not.
Source: http://www.e-greentest.net/blog/what-pesticides-can-do-to-farmerss-crops.html
