While there is no guarantee you will ever be able to get the siding back to the way it was the steps below will give it a good attempt.
Bug spray stain siding.
Insect stains and other debris can be removed by simply cleaning vinyl siding with household cleaners.
Pull the trigger and move the nozzle in an up and down or side to side motion.
Dirt and insect secretion stains however can adhere to vinyl siding attracting molds mildews and algae.
Fill a bucket with hot water and either add the cleaner to it or have it ready to go.
Remove insect stains from vinyl siding with simple cleaners.
However stains can sometimes appear on your siding that cannot be removed with water alone.
For this reason we recommend spraying it at least once a year with a mold killer inhibitor like mold and algae killer.
Chemicals that are commonly used outside such as deck stain insect repellent and asphalt can accidentally come in contact with your vinyl siding leaving behind yellow stains.
This will indirectly stop the insect activity which in turn will cut down on the spiders too.
Outlast nbs 30 time released insect repellent additive for exterior stains and paints is designed for use with most exterior coatings.
Nbs 30 insect repellent will repel most ants cockroaches beetles mites spiders fleas ticks silverfish dirt daubers wasps ladybugs and carpenter bees.
Vinyl siding is very popular due to its durability and simple maintenance.
Moisten the area with water and then scrub it using the cleaning solution.
Hold the tip of the spray machine 12 to 18 inches from the face of the wood on the side of the home.
They stain and the stains are permanent.
Lastly vinyl siding has a tendency to promote mold and algae growth.