Ok so I'm relatively new to plane ownership (Have owned my Cherokee for just over 1.5 years) and it is normally it is hangared. I'm now on a trip where I will be for the next month and a 1/2 and the airport I'm temporarily calling my home only has grass tie downs and I'm forced to leave the plane outside. Unfortunately the grass around the tiedown spot is pretty long (I just borrowed a weed wacker, and will fix that problem) and full of bugs. Last time I left the plane for a few days I had a bunch of bugs crawling all over my cowling, thankfully plane perfect waterless wash also seems to kill bugs pretty well. So for all of you that are out on grass any advice on what to do keep the bugs down. I'm thinking of going down to home depot and just getting a bunch of multi insect killer and spreading it on the tiedown spot, and maybe spraying some liquid insecticide on the sides of the tires, but worried that might lead to some corrosion. Not sure how effective all that would be, but need to do something as don't want my plane to become an insect home. So any of you that I'm have had this problem in the past have any advice?