What methods are used to control spiders?
Crawling or Hunting Spiders
This group of spiders are not found on webs but commonly make their home under leaf litter or bark, in hollows or purpose-built burrows and in general garden areas. These spiders hunt down their prey down or lie in wait to ambush their prey.
For crawling or hunting spiders, control is extremely difficult. Spider control methods are limited to removal or elimination of each individual spider by direct contact with a pesticide.
Unless the species is considered dangerous, the best method of spider control is to move them back into their habitat. The DIY system, known worldwide involves a fearless member of the household, a glass or bowl & paper/cardboard slid underneath - followed by a release outdoors!
Unfortunately, chemical sprays applied as a "barrier" method of spider control to stop crawling spiders from coming where they aren't wanted do not work. That is why no pest control company can offer a warranty on crawling/hunting spiders.
Webbing spiders depend upon silk for their movements and spinning webs for catching their prey.
For webbing spiders there are a few different spider control options:
- Food supply: Reduce the food supply for webbing spiders by turning lights off at night, and implementing other pest control measures (such as mosquito control, fly control, etc).
- Remove webs: Removing spider webs may stop you inadvertently walking into them, but this is not a long-term spider control solution.
- Chemical sprays: You can spray a spider directly with flying insect spray as a case-by-case form of spider control. Spraying chemical on the webs is not always effective since most webbing spiders hang on using claw-like structures on their legs which do not readily absorb chemical residues.
Though it doesn't usually help to cut down spider populations, it is always advisable to remove the web immediately after the treatment. This allows you to determine when the spider population is building again and when further spider control is needed.
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