Venomous spiders and bees are among the pests that are of concern in a warehouse setting.
Even if they are not common to your area, spiders such as the black widow and the brown recluse can be found in shipped-in pipe or crates. Black-widow spiders are long-legged, shiny and coal-black in color with an orange, red or yellow hourglass shape on their underside. They usually are about 1 1/2-in. long. Brown recluses are about 1/2-in. long and have a dark violin-shaped mark on their combined head and midsection.