Baking soda neutralizes the ph in the soil and nothing will grow there. use baking soda around all of the edges of flower beds to keep the grass and weeds from growing into beds. Just sprinkle it onto the soil so that it covers it lightly. Do this twice a year - spring and fall.
Plant lemongrass and rosemary in pots, containers or in flower beds on your balcony or in your garden to have a mosquito free summer! You can use them as herbs in cooking as well. Remember to brush them to release more of their fragrance before your outdoor activity.