why do spiders come inside in september

A perennial question on this site s popular facility is Where do spiders go in the winter? (So much so that the answer is given on the same page and can be found
). At this time of the year, however, more direct approaches to The Ranger are common, as spiders start appearing indoors all over the place and startled home-owners seek advice from their nearest spider enthusiast. So The Ranger was prepared when Naturenet designer Cat posed the question Where do spiders come from in the autumn? , or, more specifically, why is Cat s flat filling up with spiders? On investigation it did indeed seem as though Cat s place was a great attraction for one of the largest spiders in the UK Tegenaria gigantea. In her bath was an impressive male spider; and further searching, urged on from a distance by Cat, revealed two more similar males hiding in the kitchen sink. These two seemed to have fallen out with each other, and despite having somewhere lost two legs each, were intent on combat. Using suitable equipment it is usually possible to capture even the largest specimen safely, and all three of the spiders were put in a plastic box safely. But this still leaves some of those questions that The Ranger is often asked and here come the answers. Why do spiders come indoors in the autumn? Not surprisingly, most spiders don t like it in houses, as they are too dry and clean, with little food. But there are also few predators, so a few species have got quite used to houses, and. But in the autumn particularly, a range of species which normally stay outdoors start coming in. That is why they suddenly seem to appear from nowhere. The errant spiders are almost always males, who having reached maturity now set off in search of a female. Most will remain outdoors, but as they are quite adventurous some will by random chance end up in your house. Why do spiders like the bath?


Well they don t particularly, but they can t climb the sides. They may fall in just by chance, or they might be attracted by the moisture, but generally once in they can t get out. This is especially true of large spiders which, unlike most small species, cannot walk up smooth surfaces, so that s why big spiders end up in the bottom of your bath. Unable to run off and hide they are stuck there until you discover them. It s often suggested that spiders come up the waste pipe well, they might go down there but only if they have fallen into the bath in the first place, as they can t swim up through the S-bend in your waste pipe any more than you can. So if you take a bath often enough there shouldn t be any spiders down the plughole. If this still worries you just sluice the plughole out a few times, including the overflow. Spiders have no magic survival abilities and water will wash them away just like anything else. The easiest way to get them out of the bath is to drape a towel over the bath s side, with enough towelling inside the bath to enable the spider to climb out. Then leave overnight. This technique, although humane, is not universally popular amongst those afraid of spiders as, obviously enough, it will not necessarily get the spider out of your house. How do I get rid of spiders in the house? Tricky. They will probably just wander off again if you let them, and certainly by the time it gets at all cold most will be dead or dormant somewhere. But you can always transfer them to the garden with the Frankie Howerd technique (above) or even a specialist tool like the. The Ranger has tried one of these out and it s actually pretty good hard to harm the spider and ideal for even the squeamish. There s no point in using it won t do you any good to have that stuff in your house and as the spiders are coming in from outside even if you kill them indoors they will come back pretty much straight away.


Better to keep your doors and windows shut, and get the cracks sealed up, then no more spiders can gain entry (and your house will be! ). So, what happened to Cat s three spiders in the plastic box? The video above shows a moment from the very prolonged tussle of the two lively six-legged protagonists. Neither seemed likely to harm each other, and eventually The Ranger took pity and took them down the garden to release safely into the hedge. No doubt he ll be doing the same for their progeny this time next year! It s the time of year that spiders seem to start appearing in our homes a little more than the rest of the year - and a little more often than some of us would like. There are various methods you can use to make the eight-legged critters less keen on entering your abode, though none of these are entirely foolproof, so it might be worth getting used to the idea of sharing your living space with some of them. But are they really so keen to cosy up with humans and if not, why do they do it? Find out all you need to know here. Why do spiders come into my house in the autumn? Spiders don t specifically want to enter your home; in fact they d rather stay away as there s less food and it s too dry and clean, says Simon Garrett, head of learning at Bristol Zoological Society, which runs Living With Spiders phobia courses. Most species of spider stay outside all the time and never come in houses. However, in autumn, mature male house spiders start to move around in search of mates. Some will move into a house if there is an entry point for them. It is this need to mate that changes their behaviour, so it seems as though they suddenly come from nowhere at certain times. If they come across any small opening, they can easily get in, he adds.


So why do I often see spiders in my house? In actual fact, the spiders you usually see in your home are not the same species as those you d see in your garden. House spiders are among the small number of creatures who have specifically adapted to indoor conditions, and will normally spend their entire life cycle in or under the building they first move into or are born in. Spiders are cold-blooded and not attracted to warmth - they don't get uncomfortable when it's cold, though they will start being less active and, eventually, become dormant. It s estimated that less than 5% of the spiders you see in your house will ever have been outdoors. If you are seeing larger numbers than usual inside at this time of year, it is mainly as mentioned above because males are wandering further abroad in search of mates. So what can I do about the spiders in my house? It s not a bad idea to see if you can bear having them around. Bristol Zoo s assistant curator of invertebrates, Mark Bushell, says: The best thing to do with spiders in your house if just ignore them. Spiders are harmless and are actually doing you a service by eating flies that are also in your home. If that is simply not an option, there are many ways of. Keep it clean and tidy, and make sure rubbish bins are regularly emptied, to discourage the flies that spiders feed on. You can also ensure that any gaps or cracks around areas where pipes enter your building are sealed up. The British Arachnological Society advises: "It's impossible to rid an area of spiders for any length of time because new spiders soon recolonise a house if the original inhabitants are killed off. "If one gets trapped in the bath or sink put a towel on the edge of the bath or sink so the spider can climb out. The spider cannot climb up the slippery sides of the bath and so are trapped. "

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