Yes, Suspend SC is great for treating spiders and their food source (which naturally drives them away from the area). This product would not prevent spiders from forming webs as they have to come in contact with the treated area in order for it to kill them. To actually prevent spider webs it would be better to use a product like Web Out.
The main thing to know when dealing with fleas is that there is no overnight fix for them, it can take multiple applications to completely eliminate them sometimes 2-3 treatments or more. You also want to make sure that you are following the instructions on the product labels that you are using. Suspend SC? is not labeled to be used anymore often than once every 21 days. Per the product label for indoor applications, you should also only apply as a coarse, low pressure crack and crevice spot treatment to problem areas and infested habitats. Do not treat entire floor, carpet or floor coverings. Do not apply as a space spray. Application to furniture should be restricted to areas where prolonged contact by humans will not occur. Care should be taken to limit spot treatment to pet beds and infested floor coverings. Suspend SC would not be a good choice for indoor flea control because it can not be used over cracks and crevices only. For indoors, we would highly recommend our Indoor Flea Kit. It is our most popular product for indoor flea control and is usually the final treatment that people end up using that works when they have tried everything else.
You could use Suspend SC as a crack and crevice spray in the room where they are present, but we would not recommend spraying them directly. We can tell you that many mount owners do use 565 Plus XLO or Cy-Kick aerosol to get rid of cloth moths and carrion beetles. You should choose 565 Plus XLO for a fast knockdown and CyKick Aerosol ifyou need a long lasting residual. Be sure to hold the can at least 12inches away from the mount and spray in a sweeping motion. You should also test the product you choose in a small inconspicuous area before spraying the entire mount.
Suspend SC is a great option for bees and wasps. It is labeled for both. You will spray around the perimeter of your home, in the eaves, etc. where the pests would be. The mixing ratio is 0.75 fl. oz. per gallon of water. This product should not be sprayed on the concrete. Yes, you can spray the overhang of your house. Be sure to wear protective goggles when spraying above your head. For an instant kill of flying stinging insects, you may also want to consider a knockdown spray such as Wasp Freeze.
Yes, Suspend SC can be used for snow fleas. What is commonly referred to as the "snow flea" is actually a springtail and not a flea, but this particular species has a special protein which allows them to survive in very cold temperatures. Since these insects feed on decaying plant matter, it is important to locate and eliminate the conditions which favor their presence, such as cleaning up decaying plant matter near the home, fixing leaking pipes or sprinklers, and practicing good general lawn sanitation. Please take a few moments to review our article How to Get Rid of Springtails for more tips on eradicating this pest.