The cost of getting a mosquito control in Rapid City depends on the overall size of the area and if there are any landscaping that needs to be sprayed. Generally, most homeowners are charged by a particular base price set by the Rapid City mosquito control company. This includes costs per yard with only an average size of landscaping. If the landscaping includes shrubs, trees, flower beds, ponds, and other features, the price may fluctuate, adding up to around $5 to $30. A ¼ acre of lot has a usual base price of $65. A ½ acre of lot can cost you a base price around $85 to $90. For much larger lots, the base price can go as high as $81 up to $800.