College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;
College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;
College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;
College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;
College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;
College of Plant Protection, Gansu Agricultural University, Lanzhou 730070, P.R.China;