The development and implementation of IPM programs in greenhouse vegetables requires a thorough understanding of all aspects of greenhouse production practices. Production practices such as leaf pruning can have a major negative impact on the establishment of whitefly parasitoids. Also, adjusting climate conditions in the greenhouse that promote the use of entomopathogenic fungi can result in severe disease outbreaks. Thus, growers and researchers must really become experts in integrated crop management of which IPM is just one component. This talk will present examples of how greenhouse climate, crop productions practices and even greenhouse construction recommendations are all developed in an integrated manner to optimize pest management, fruit quality and yield, and energy conservation.