Control signalling for systems employing link adaptation and incremental redundancy is described. A number of link bodies are articulably connected to each other in the longitudinal direction with the cables and the like inserted thereinto. In addition, a base portion of the station may have a wall access opening to facilitate applying insecticide behind a wall. In some embodiments, the novel marker loci comprise coding sequence for a maize DGAT1-2 polypeptide or biologically active variant thereof. The composite set of image data thus includes a set of imaging where data all infrared signals are collected, including both signals resulting from the IR source and other IR signals, from which is subtracted imaging in which no signals result from the IR course, leaving image data including signals resulting only from the IR source.