ISBN: 9787546313016 - cucumber - vegetable pest control map(chinese edition) (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date: June 2010 Pages: 114 in Publisher: Jilin Publishing Group LLC cucumber - vegetable pest control map Introduction: many kinds of pests in vegetable production. the symptoms varied. but the majority of the farmers of various diseases. especially difficult disease is difficult to accurately diagnose and often rely on their own experience to judge. leading to the first application of a variety of pharmaceutical prevention. and arbitrarily increase the dosage increases caused .…