Here is Uses of Vinegar Part - 3 In the Great Outdoors
Clean outdoor furniture and decks
If you live in a hot, humid climate, you're probably no stranger to seeing mildew on your wooden decks and patio furniture. But before you reach for the bleach, try these milder vinegar-based solutions:
Keep some full-strength white vinegar in a recycled spray bottle and use it wherever you see any mildew growth. The stain will wipe right off most surfaces, and the vinegar will keep it from coming back for a while.
Remove mildew from wood decks and wood patio furniture by sponging them off with a solution of 1 cup ammonia, 1/2 cup white vinegar, and 1/4 cup baking soda mixed in 1 gallon (3.7 liters) water. Keep an old toothbrush on hand to work the solution into corners and other tight spaces.
To deodorize and inhibit mildew growth on outdoor plastic mesh furniture and patio umbrellas, mix 2 cups white vinegar and 2 tablespoons liquid dish soap in a bucket of hot water. Use a soft brush to work it into the grooves of the plastic as well as for scrubbing seat pads and umbrella fabric. Rinse with cold water; then dry in the sun.
Make a trap to lure flying insects
Who wants to play host to a bunch of gnats, flies mosquitoes, or other six-legged pests when you're trying to have a cookout in your yard? Keep the flying gate-crashers at bay by giving them their own VIP section. Place a bowl filled with apple cider vinegar near some food, but away from you and guests. By the evening's end, most of your uninvited guests will be floating inside the bowl.
Give ants the boot
Serve the ants on your premises with an eviction notice. Pour equal parts water and white vinegar into a spray bottle. Then spray it on anthills and around areas where you see the insects. Ants hate the smell of vinegar. It won't take long for them to move on to better-smelling quarters. Also keep the spray bottle handy for outdoor trips or to keep ants away from picnic or children's play areas. If you have lots of anthills around your property, try pouring full-strength vinegar over them to hasten the bugs' departure.
Clean off bird droppings
Have the birds been using your patio or driveway for target practice again? Make those messy droppings disappear in no time by spraying them with full-strength apple cider vinegar. Or pour the vinegar onto a rag and wipe them off.