Yellow garden spiders good for yards, gardens Posted in: News Garden spiders may look scary, but they are a friend of gardeners and help keep insect populations in check around the house. Garden spiders go by many names – writing spiders, yellow garden spiders, banana spider and by their genus – Argiope, said Wizzie Brown, Texas A&M AgriLife Extension Service entomologist,PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!