The present invention provides yellow tomato plants producing fruit suitable for processing. The method includes the following steps of providing a substrate having a first portion and a second portion; fabricating a membrane type sensor on the first portion of the substrate; and fabricating a bulk silicon sensor on the second portion of the substrate. The support structure can include a front sheet, a back sheet and a plurality of side strips secured between the front sheet and the back sheet for forming a closed support structure. Broad spectrum efficacy is achieved, and synergistic activity is exhibited against C.