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Pests and Insects are adversaries farmers and gardeners face on a daily basis. These insects cause a significant harm to the agricultural and economic systems all around the world. A variety of species feed on crops such as vegetables, grains, and nuts. For example, the Colorado Potato Beetle (Leptinotarsa decemlineata) is an insect that feeds on potatoes, tomatoes, cherry tomatoes, eggplant, and petunias. Although this species originated in America, it spread rapidly in potato crops across America and then Europe from 1859 onwards (The Editor of Housekeeping, 2018).
Pesticides are the most common substances used to kill harmful insects or other organisms harmful to plants, crops, or animals. According to Md. Wasim Aktar, the term pesticides cover a wide range of compounds including insecticides, fungicides, herbicides, rodenticides, and others. For a very long time now, humans have utilized pesticides to protect their plants and crops. The very first known pesticide was a specialized made sulfur dusting that was used in ancient Sumer which was in Mesopatamia. It would then soon evolve until Paul Hermann Muller, a swiss chemist, discovered that Dichloro-diphenyl-trichloroethane (DDT) was a very strong and effective insecticide. It was commonly used as such from 1939 until it was banned in 1972. Although DDT was seemingly not as harmful to humans as it was to animals, it still contained animal tissue fat. Birds of prey were particularly the main victim of the pesticide due to the result of inhaling and accidently consuming the harmful chemicals from bugs. This then lead to subsequent thinning of their eggshells which had an impact to their reproduction (Tillbury, 2018). Thus, DDT was banned in countries such as Britain. In a 2014 study, it was concluded that people suffering from Alzheimer’s disease had more than four times the level of DDT in their bloodstreams compared with those who did not have the disease (Knapton, 2014).
The evolution of pesticides has drastically improved in terms of safety of both agricultural and economical means. Organic Pesticides soon became popular around 1980. According to Steve Martin, there are many advantages of Organic pesticides than there are of Inorganic or synthetic Pesticides. One example is that Organic Pesticides are often lower in toxicity than older synthetic pesticides. In this study, the researchers would like to evaluate how effective an organic pesticide deals with pests/insects. The organic substance that will be used in this study is the Corn (Zea Mays) Leaf. The Corn Leaf is known for being a good source of antioxidant, carotenoids, vitamins, and minerals. It is also known for having a potassium, phosphorus, nitrogen, zinc, sulfur, and manganese deficiency. These aspects help in not only the fertilization of a plant but also helps kill harmful organism on contact. The Tussock Moths are capable of defoliating a whole forest. The White Marked Tussock Moth Caterpillar is in the sub family Lymantriidae in the family Erebidae (Beadle and Leckie, 2012). They feed on mainly fruits, vegetables, grass, and leaves. For a caterpillar, it must consume enough nutrition in order to complete in metamorphic cycle (Hadley, 2018). So, any chance a caterpillar can get, it’ll eat as much as it can.
In this study, we will make an Organic pesticide by using an extract from a corn leaf and see how effective it is toward the said animal. Farmers are prone to harmful organisms such as larvacide and nematicides. They cannot be completely replenished but they can be prevented to an extent.
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