I've been in some places "up north" where the bugs are so big and numerous you might need "anti-aircraft guns".
If the area is subject to sudden winds where you will need to quickly roll the awning back a better option might be a separate "pop up" canopy with side screens. These can be securely anchored to the ground by several different methods and will usually withstand more wind than a trailer mounted awning. Many of these canopy setups can be "ganged" in multiple units with the bug screen just around the outside.
Even with them it's probably a good idea to use a chemical repellent or insecticide to deal with the ones that sneak in. Give the interior a good spray at night just before retiring.
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