Pesticides are used to protect crops from insects and other pests. But sometimes pesticides can be as harmful as they are useful. How can pesticides be harmful?
Answers
Pesticides are helpful to protect crops from insects other pests. But there are also some bad effects of pesticides because overuse of pesticides goes to groundwater and contaminates it . In some cases overuse of pesticides kill some useful insects for plants . Some pesticides stick to fruits and vegetables when we eat them it causes serious disease to us . some pesticides are poisonous and dangerous for cattle and humans so we should decrease the uses of pesticides .
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Answer:
Explanation:
There are several advantages and disadvantages of pesticide use by farmers. Pesticides are chemicals that kill pests. To most farmers, pesticide use is an unavoidable aspect of farming or gardening. This is because pesticides help in keeping the plants free from pest infestation. Pests are harmful insects whose effects on the crop can be devastating if they are not controlled.
Pesticides help farmers in preventing crop damage by these harmful insects. Although pesticides are important to farmers, using them can pose a risk to the farmer, his family and animals. However, when used properly pesticides may not have significant side effect on humans and animals. Nevertheless, it is important to consider the advantages and disadvantages of pesticide use before a farmer start using them.
One of the major advantages of pesticide use is that they kill pests faster than other pest control methods. This is because pesticides are specifically formulated chemicals that target certain pests. Once administered in a crop that has been invaded by the pest, pesticides start working immediately by affecting the normal biological functions of the organs of the insect.
Pesticides are also easy to use. With most pesticides, a farmer is just required to mix the pesticide with a specified amount of water and then spray the crop. There are powder pesticides that a farmer applies to the crop that is infested with pests directly. Thus, it takes a few minutes or hours to apply the pesticide and control the pest.
There is also a wide range of pesticides from which a farmer or gardener can choose from. This implies that a farmer can easily find the pesticide that they need to control a particular pest in their farm. Additionally, if a pest has developed resistance to a specific pesticide, a farmer can use another.
Nevertheless, there are also disadvantages of pesticide use as well. For instance, when a pesticide is overused in controlling a particular pest it can develop resistance. If the traits for the resistance are genetic-based, then the pesticide will no longer be effective in controlling that pest.
Some pesticides also kill beneficial insects. Insects such as bees which are agents of pollination can be killed by some pesticides. In addition, some pesticides have residual effects that can be passed on to humans who consume the crops on which they are applied. When used in the field, pesticides are carried by rain water and deposited in water bodies such as rivers and lakes where they interfere with aquatic life.
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