1.   And since most mosquito sprays have little residual effect, he said, it is typically necessary to find the mosquitoes and make a frontal assault.

2.   In fact, lemon grass is botanically related to citronella, used in mosquito sprays and candles.

3.   Pollution, hurricanes and chemicals used in mosquito spray all have been blamed as killers of the moss.

4.   Each candidate promises solutions, from following a tight plan to integrate growth and transport, to promising free mosquito spray.