Hey, check this out (from Wikipedia)! I've always just thought of them as not-likely-to-be-dangerous garden spiders. They can be found most everywhere at times including in my goldenrod: "Misumena vatia is a species of crab spider with holarctic distribution. In North America, where it the largest and most well-known flower spider, it is called the Goldenrod crab spider, because it is commonly found hunting in Goldenrod sprays in the autumn. Females can grow up to 10mm (without legs), males reach 5mm at most. Young females in the early summer may be quite small and easily overlooked. These spiders may be yellow or white, depending on the flower in which they are hunting. Especially younger females, which may hunt on a variety of flowers such as daisies and sunflowers, may change color "at will" (aggressive mimicry). Older females require large amounts of relatively large prey to produce the best possible clutch of eggs. They are, therefore, in North America most commonly found in Goldenrod (Solidago sp.), a bright yellow flower which attracts large numbers of insects, especially in autumn. It is often very hard even for a searching human to recognize one of these spiders on a yellow flower."

He's right - the immature ones have stripes (so do most of the mature males). The key to identification is the really FAT, ROUND abdomen and a messy web. Most other striped spiders with round abdomens make classic "webs", flat with the spiral connecting spokes. ========= Step one is to kill the spiders. Step two is to eliminate whatever they are feeding on to avoid attracting more. ================== Basic pest control steps: Exclusion: * Window screens, door screens, weatherstripping on windows and doors. * Caulk cracks around window and door trim, inside and outside. * Caulk all cracks around the base of siding. * Caulk all cracks where pipes and wires enter the house, inside and outside. Outdoor Habitat Removal: * Remove ALL debris piles and dead vegetation near the base of the house, and from all porches and patios. * Trim back all vegetation that brushes the house. A 12-18 inch band of raked bare dirt or gravel or non-plant-based paving at the base of the wall, with no way to cross it on a plant's branches. * Clean up all material that attracts vermin ... garbage cans, pet feces, recycling bins with old soda cans, etc. NOTE: You can expect a brief period of higher intrusions after you do the cleanup, because you just wiped out habitat and they will be seeking new homes. Seal cracks first, clean up later. Interior Habitat: * CLEAN HOUSE * Do not leave pet food out overnight * Do not leave dirty dishes overnight * Do not leave accumulated clutter, such as collections of shopping bags or piles of dirty laundry.

That kind of aggressive runner coming from a golf course would certainly imply Bermuda, but some creeping bentgrass types look kind of similar. That purple stem plant could be a baby Crabgrass plant with that tiller on it.

She certainly seems to be one of the many species of Argiope but not one that I'm familiar with.