Positive test controls include: Inflorescences, Before inflorescence, Rosette leaf. Immunogen sequence: KHFCRLPLLD FPEYYPKYPS KNEFLAYLES YASHFRIAPR FNKNVQNAAY DSSSGFWRVK THDNTEYLSK WLIVATGENA DPYFPEIPGR KKFSGGKIVH ASEYKSGEEF RRQKVLVVGC GNSGMEISLD LVRHNAS