This is a post I got off overgrow.
Destroys Mites, bugs, powdery mildew.
1/4 cup Baking Soda
1/2 cup Apple Cider vinegar
1 Tablespoon Lemon Juice
2 drops dish detergent
1/4 Teaspoon Epsom Salts
Take a cup of very hot water and dissolve the epsom salts, take rest of ingredients and place in a clean 2 liter bottle and let work out. Add epsom solution. Add water to fill to 48ozs(3/4 full).Shake well.
TO USE: Cover soil/medium with plastic,with lights off mist plant all over,especialy under leaves,
Wait 20 mins,then spritz off with clean fresh water shaking as much water off plant as you can.
The fresh water spritz rinse will remove the solution along with the desolved remains of the mites and their eggs.
Have fun with your new "Mite Eradicator"
Note by MrFixit: Water plants 1/2 hour before spraying. This will help keep your plants from absorbing the spray.
This solution has been tested and used as directed will not burn plants,the rinse is very important though as it removes the spent solution before it can concentrate and burn the plant. It also removes most of the dead mites and eggs so you don't end up eating them.
The formula can be diluted further,to 1 liter and it will still kill the mites but isn't as effective at dissolving and removing the mite parts.
Since removing the mite debris is desirable,I recommend the stronger solution,just remember to rinse and shake.
This formula is alkaline(about 7.8-8) so please remember to rinse.
