I.IPM of Cotton Divisions of cotton-growing areas in China: >Liao River valley cotton-growing area; >Yellow River valley cotton-growing area; Northwest inner-continent cotton-growing area; Yangstz River valley cotton-growing area; Chinese South cotton-growing area.Ⅰ. IPM of Cotton IPM of Cotton Divisions of cotton-growing areas in China: ¾Liao River valley cotton-growing area; ¾Yellow River valley cotton-growing area; ¾Northwest inner-continent cotton-growing area; ¾Yangstz River valley cotton-growing area; ¾Chinese South cotton-growing area