According to the Talstar P product label:
Chinch Bugs infest the base of grass plants and are often found in the thatch layer. Irrigation of the grass area before treatment will optimize the penetration of the insecticide to the area where the chinch bugs are located. Use higher volume applications if the thatch layer is excessive or if a relatively long
mowing height is being maintained. Chinch Bugs can be one of the most difficult pests to control in grasses and the higher application rates (Up to 1 fluid oz. per 1000 square feet) may be required to control populations that contain both nymphs and adults during the middle of the summer.
If you have purchased Termidor SC from us and completed the proper trench treatment around the foundation of your home (outlined in the guide below) then that is all the protection you would need to do. Treating the surface of the soil with a liquid or granule in your lawn will not prevent or keep termites away. Termites in their natural environment are actually beneficial insects and most homeowners have them in their yard without ever knowing it as everything is in balance. If you know where a particular colony or activity of termites in the soil is in a particular area you can always drench the soil in that spot with a product like Talstar P.
Talstar P is labeled for roaches but is not the best choice, especially for German roaches, as they typically require a more aggressive treatment. German roaches reproduce at a rapid rate and can be resistant to many products that have been used over time. The most effective way to treat for German roaches is to use a combination of an insecticide residual spray, strong roach bait gel, and an insect growth regulator (IGR). We would recommend using one of our Roach Control Kits so that you can be sure you have everything you need for a complete roach treatment program. You may also want to look over our Roach Control Treatment Guide for more information.