Wade from Pearland writes
Per the manufacturer, "There are many factors involved such as: when flooding has brought new, untreated soil next to the foundation, foundation elements have shifted/moved, soil subsidence has occurred and untreated soil now requires a Termidor treatment, adjacent patios, driveways, concrete pathways, asphalt pads, etc have moved and exposed soil areas that can now be treated, soil erosion next to foundations has removed protective termite treatment zones, landscaping has been repaired, added, etc and the previously treated zones have been disturbed. Especially when repaired and previous soil is moved. Termidor has very low water solubility and therefore will not leach through the soil. Termidor tightly binds to organic matter in soil, which also limits its movement. All of these physical and chemical characteristics contribute to Termidor remaining active in the treated zones close to the foundations of the structure for as long as the soil and foundations have not been compromised or the normal time span for degradation has elapsed."
Answer last updated on: 01/30/2018
