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.
Buck moth caterpillar is yellow-brown to purplish-black. This is a large caterpillar, 1Â¾ inch to 2Â¼ inch long when mature. It is yellow-brown to purplish-black with many small white spots and a reddish head. It feeds on oak, willow, and other deciduous plants (Figure 5).he four major stinging caterpillars occurring in Florida are the puss caterpillar, saddleback caterpillar, Io moth caterpillar and hag caterpillar.