Appearance: The mature female is around 1.5 in and 0.25 in diameter.
Females are usually shiny black in color with the distinctive hour glass marking on the abdomen. Males are either black or grayish white and much smaller in size.
Habitat and Behavior: Black widow webs are often found near the ground and can be recognized by their erratic shape. They can be found around the home in drainage pipes, weep holes, or in stacks of bricks.
Their neurotoxic bite can be very painful to humans and animals, although rarely fatal.
Diet: Black widow spiders prey on a variety of insects, including other spiders.
Control: Treating the exterior of areas where black widows have been seen such as homes, buildings, garages, or jungle jims, with a liquid pesticide will give you a long residual and offer the “knockdown” that you need.