What are the advantages/disadvantages when using spray and gel insecticides?
The advantages of using liquid insecticides are that it can be applied in most locations where cockroaches are located and are available in varying formulations. However once applied they can dissipate within 1 month. The advantage of using gel insecticides is that they can last up to 3 months. However they can be unsightly, difficult to apply and must be physically removed and the area cleaned between each application. 3.
