1. Non-Toxic Fungicide
Mix 4 tsp of baking soda and 1 gallon of water. Use to defend against black spot fungus on roses and to protect grapes and other vine plants upon the first fruits appearing.
2. Spray to Treat and Prevent Powdery Mildew
Combine 1 tbsp baking soda, 1 gallon water, 1 tbsp vegetable oil (any variety), 1 tbsp dish washing liquid. Mix all ingredients and fill a spray bottle the mixture. Spray your at risk plants weekly, being sure to only apply on overcast days or days with no direct Sun to allow the mixture to dry before direct Sunlight returns – or the foliage can become Sun damaged. Powdery mildew typically attacks impatiens, lilacs, cucumbers, squash and zinnias.
3. Discourage Gnats In Soil & Fungus on Leaves
Combine 1 gallon water, 4 tsp baking soda, 1 tsp biodegradable soap. Mix thoroughly, spray infected foliage or soil as needed.
4. Discourage Weeds
Pour or sweep baking soda into cracks in sidewalks and patios. The thicker the amount the better. The baking soda should not only prevent weeds from developing, but it should also kill any small weeds that have already sprouted.
5. Kill Cabbage Worms
Mix equals parts flour and baking soda, then dust your effected plants being attacked by cabbage worms (cabbage, broccoli, kale). They chew the treated leaves and typically die within a day or two. Repeat dusting every couple of days until the cabbage worms are taken care of.
6. Kill Crabgrass
Just wet the crabgrass, pour a heavy dusting of baking soda on the weed. The crabgrass should start dying back in 2 or 3 days. However a word of caution – never apply to grass or other similar plants as it can burn and destroy your normal grass as well.
7. Clean Your Hands
After a day in the garden dirt, clean your hands by rubbing and scrubbing wet hands with baking soda. Rinse thoroughly.