In polymer chemistry, polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them.
The thistle caterpillar is the larval stage of the painted lady butterfly. The adult insect migrates into Iowa each year from Texas and Mexico. Eggs are laid on both thistle and soybeans. The caterpillar is easily identified by the spines that resemble Christmas trees that have lost all their needles.
digitalis toxin, the oleander caterpillar relishes this plant exclusively. The adult of the oleander caterpillar is a very attractive moth that resembles a wasp with a red-tipped abdomen and its iridescent bluish/black body and wings that have white spots. Eggs are yellow-green and laid in clusters of 25-75 on the underside of leaves. When larvae hatch, they feed gregariously and skeletonize the leaves. As they grow, they tend to disperse and will consume entire leaves and flower clusters. The caterpillar is a bright, day-glow orange with black spots and long tufts of black âhairâ.