t. Economic analysis showed higher net economic returns (1410 USD/ha) and benefit: cost ratio (3.6:1) than from the non-IPM treatment (1152 USD/ha net return; 2.9:1 benefit: cost ratio). Compared to the non-IPM treatment, growers using IPM reduced the amount (a.i./ha) of pesticide by 63.8% and the number of pesticide applications by more than 50%. In addition, the IPM treatment replaced hazardous pesticides with safer bio-pesticides and reduced-risk pesticides. This study demonstrated that IPM can be cost-effective for managing pests and diseases of cauliflower in late winter.