Insect Create Great Loss To Crops

1064 words - 5 pages

Lastly, in the developing countries crop damage from pests can cause economic loss and starvation for the farmers. As a pre-caution farmer use multiple pesticides to kill insect and because this is hazardous to human health many customers don’t want to eat this food. Also in cases of heavy rainfall the chemical pesticides can run off into a water supply and causing unsanitary environment. An example to eliminate the usage of pesticides and reduce cost of crop in markets is Bacillus thuringiensis (B.t) genes in corn. A B.t is a natural bacterium that creates crystal proteins that are deadly to insect larvae, mainly caterpillars. The B.t in the corn expresses proteins called Cry against insects but are harmless to humans. B.t is described as “the most important techno- logical advancement in insect pest management since the development of synthetic insecticides” because corn holds resistance to a harmful pest, the European corn borer (Ostrinia nubilalis). The B.t genes have also been introduced introduce to other crops for instances potato, beet and cotton. Regular cotton, without the B.t gene is increasingly susceptible to damage by insects and so one quarter of pesticides in the US is used only for cotton. Hence by GM of cotton with the B.t gene the amount of pesticides are used by the farmer decreases. 1038From the Department of Agriculture
To defend against disease genetic modified crops such as tobacco, squash, tomatoes and corn are designed to be virus resistant. For example, over 500 million people in third countries feed on Cassava, a genetic engineered to contain more nutrient and to resist the African cassava mosaic virus. To defend against biological invasion traits are added to various crops such as squash, potato and papaya that are resist to viruses by GM and insects pest. Thus, through vaccine and medicine, resistance genes and decrease in malnutrition genetic modification could be applied international in developing countries to improve health care systems.
In developing countries impoverished people mostly dependent on crops such as rice for their diet. Though rice doesn’t hold adequate nutrients to prevent malnutrition from occurring. Therefore genetic modified rice could contain more mineral and vitamin to compensate for the lack of nutrition. For instance vitamin A deficiency causes blindness and is a common challenge in third world countries. As for rice, high content of beta-carotene is expressed in GM rice by the addition of genes in the phytoene synthase pathway. The GM rice is familiarly known as Golden rice. The GM rice could then be crossed with an abundant iron strain of rice to produce rice with both qualities. This technique represents the ability for any future biotechnology crops to assist people in third world countries. Biotechnology is used to incorporate nutrients into a common plant as a way of distributing increased levels of vital nutrients to regions of the world that are fighting nutrition deficiencies. The...

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