We collected surveys from 94 greenhouse and nursery growers in three northeastern states to examine factors influencing integrated pest management (IPM) adoption. We constructed three alternative dependent variables describing the extent of IPM adoption and employed discrete choice models to identify factors that affect adoption. We find that operations with more full-time workers are more likely to adopt IPM. Additionally, greenhouse/nursery growers that rank pests as a serious problem are likely to use a wider array of IPM practices. The reliability of IPM practices is critical for adoption. Our analysis highlights differences between self-reported and objective IPM adoption measures.