Unfortunately, there is not a home anywhere in United States that does not have at least one spider living in it somewhere. Luckily though, spiders serve a useful purpose at least for the most part. Spiders eat billions of bugs every year that would otherwise play havoc with our daily lives. However, orb spiders can be a threat to children and the elderly. You should protect yourself and your family from them, but how do you know if your spider problem is just a nuisance or a threat? Here are a few helpful hints to take into consideration before you call your New Jersey pest control experts.