Western Corn Rootworm’s Resistance to Crop

A western corn rootworm is an egg-laying insect that feeds and survives on corn but does not survive in soya beans. For a long time, particularly, from the twentieth to the current twenty-first century, various agriculturalists have attempted various methods of eliminating it fro their crops field, but without success. However, in the twentieth century, the agriculturalists discovered that the insect took several seasons to complete its entire life-cycle, from egg-hatching to the larvae stage and finally to the mature rootworm stage. Having discovered this in the early twentieth century, farmers in Illinois as well as the entire United States opted and adopted crop rotation. However, even after rotating soya beans and corn bearing in mind that the rootworm does not survive in soya beans, they have discovered that the worm still completes the entire cycle (Barnes, 2011).

According to researcher J. Zavala, the worm produces a gut called proteinases, whose level of production from the worm is equivalent to the chemical produced by soya beans. As a result, the gut plays a major role in protecting the worm against the gut, making the rotation-resistant worms to survive through the rotation. The wild-type worms also produce Cathepsin-B, which assists them to even feed on the soya beans. From an analysis of the article, therefore, according to various researchers who were involved in carrying out a research study concerning the insect’s behavior, and resistance to the soya bean, it is evident that the production of resistance chemicals such as Cathepsin-B is the one factor that all researchers across the twentieth and the twenty-first centuries had ignored, from a biological perspective (Yates, 2012).

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