I think it is stage 2 At stage two, the skin breaks open, wears away, or forms an ulcer, which is usually tender and painful. The sore expands into deeper layers of the skin. It may appear as a scrape, blister, or a shallow crater in the skin. At times this stage looks like a blister filled with clear liquid. Also at this stage some skin may be damaged beyond repair or may die.
Genetic modification allows for foods to grow larger in a shorter amount of time. This allows growing populations to provide the necessary amount of food. Using modification, you can also reduce the need for pesticides.