they don't benefit plant actually their relationships are commensalism it means that one is benefited which is the spider (by getting shelter) and the plant just stay normal neither harmed nor benefited. :)
garden Spiders usually waits until the insect comes close, then it pounces, wraps it up with silk, anesthetics it. and drink its blood.
They eat the bugs that destroys or damages your plants, and they have their own free meal.
garden spiders
the main predators of the greenfly are: Lady Birds and Spiders
Yes, be aware it may kill your surrounding plants.
No. Spiders are not insects. Insects are not spiders.
All spiders are predators. They do not eat plants, but only other living animals. Insects, spiders, invertebrates, some small vertebrates are the typical prey items.
red backs, huntsmans, wolf spiders, and garden spiders
Yes, Garden Spiders are poisonous but they make you itch
yae they do
A gardener
Garden Spiders have zero antennae.
Spiders do not do anything that would hurt any kind of plant. Spiders are carnivores, and most of the time they eat insects. Some spiders eat a little plant pollen, and some spiders drink nectar from flowers, but they don't damage anything by so doing. Other than walking over plant life, or attaching webbing to branches or leaves, they do not interact with plants.
Spiders are not killing your plants. If anything, they are good for your plants, since they eat insects that eat plants.