Pros and Cons to Using Spiders as Natural Pest Control One single spider in NYC can eat more than 2,000 insects in a year. And while almost no spiders in New York are poisonous to humans (the sac spider is the only exception), many of the insects they feed on are harmful. Local spiders eat

Web Building Spiders vs Crawling Spiders: How We Treat Each Kind An intricate spider web stretched across your window can be a thing of beauty or terror depending on your feelings about spiders. But did you know that the majority of spider species in NYC do not build webs? They still produce spider silk and