Firstly I’m going to assume you mean venomous and not poisonous.

The poison present in banana spiders is not highly dangerous, nor do they produce in a significant amount. The venom of banana spiders is mildly poisonous, and they do not produce it in very large quantities. Also look up north american banana spider and you will see a spider quite different than what we in the south consider a banana spider. These are commonly called banana spiders, golden silk spiders, writing spiders or calico spiders, and their venom is largely harmless to humans as well, although some species have large fangs, so if they do have occasion to bite you, it might hurt like any other puncture wound.

In fact, you would not feel the need to seek medical assistance unless you experience difficulty in breathing. Like Cupiennius spiders, Brazilian wandering spiders are often referred to as banana spiders because they sometimes travel the globe in banana shipments. Despite having such a funny name, Banana spider is a dangerous insect that has very poisonous venom. Myth: The tip of a banana should not be eaten because there could be spider eggs inside. Fact: This seems to be one of the newer urban legends.I find no reference to it from before 2002, though two correspondents say they heard versions in the late 1970s; a third person, as early as 1960. The term "banana spider" actually refers to three different types of spiders; the Brazilian wandering spider which is poisonous, the golden silk orb-weaver which is not poisonous, and the Argiope appensa which is also not poisonous. This would cause symptoms like: breathing problems swelling hives A HUGE banana spider managed to capture a bat in its six foot web outside a house in Texas. The horrifying video shows the dead animal dangling from … Brazilian wandering spiders are a danger to humans, and are known as one of the most venomous spiders on Earth.

This can explain why, sometimes, a spider's color does not match its environment. Phoneutria are poisonous to humans, and they are considered to be the deadliest of all the world’s spiders.

Banana spiders produce venom that they use on potential predators whenever they feel threatened. However, there is anti-venom to treat their bites.

The Banana Spider is known to hide among bananas shipped to the US and is really called the Brazilian Wandering Spider. Actually, a bite causes blistering and some amount of intense pain, and maybe some nausea and dizziness. And in the winter she dies because of the colder weather, she is not poisonous. She is beautiful! Consequently, their bites don’t prove fatal for human beings, but they do cause some sickness as well as giddiness. If it bites by accident, it should worry you. These species are sometimes also referred to as banana spiders because they are frequently found on banana leaves. Spider Bite and Treatment.

Hence, their bites are not lethal to humans. The red-faced banana spider, Cupiennius chiapanensis, from Central America is occasionally brought into North America on bananas and often misidentified as a toxic Brazilian spider. The spider we call banana spider in north america and especially in the south east is a garden spider.