Answer
Sep 04, 2013 - 04:01 PM
Wow, I responded to your message last week, and just found that it didn't post! So sorry. GRRR.
The best products for spiders on vinyl siding are the products that are either white in color, clear or are microencapsulated, such as DEMAND CS. Demand mixes at a very low rate and won't usually stain.
What happens with some products, is that the petroleum base acts as a solvent and actually cleans the siding. Dirt and debris will sometimes wash down the side and leave "clean streaks". So the obvious solution is to use something that mixes at a low rate and has very little petro base to it.
Products such as Spectracide, etc, contain a lot of petroleum solvents. Be careful, otherwise you will end up cleaning and scrubbing the siding to make it look good again.
The other answer is that nothing really kills spiders for very long outdoors. In most cases, you have to hit them directly with the chemical to kill them. They don't absorb chemicals throught the feet like cockroaches do, so usually, long lasting chemicals don't work that well on them anyway. When you spray you will kill whatever you hit.
Just saw a post where a 5 year old boy flew an ultralight in China. That's pretty incredible. Keep the nose up and the wings level!
Ron
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