Top. A horizontal asymptote is a y-value which a function approaches. The asymptote is parallel to x axis, so is of the form y = a, for all real values of a. Thus if f(x) = y is a function, then y = a, becomes undefined for the function, then the line y = a, is called the asymptote for the function y = f(x).
The African armyworm (Spodoptera exempta) also called okalombo, kommandowurm, or nutgrass armyworm, is an African moth. It is a very deleterious pest, capable of destroying entire crops in a matter of weeks.
Eggs are laid in masses of up to 50 eggs on the grass leaves and are difficult to find. The eggs are covered with the grey scales from the moth=s body, giving the egg mass a fuzzy. appearance. Eggs hatch in 2-3 days. Caterpillar. Fall armyworms are green, brown or black.