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.
Black Swallowtail caterpillars will eat parsley, dill, fennel and rue, so if you have plenty of these in your garden your caterpillars wonât starve, unless you have too many caterpillars.iving parsley or dill from the grocery store to Black Swallowtail caterpillars may be possible if they are starving and you donât have any suitable plants in your garden. But many caterpillar owners will urge against this: grocery food may contain chemicals toxic to Black Swallowtail caterpillars.