I'm posting this quickly and do not have a lot of time to get into the subject. Recently I'm seeing the term IPM badly misused and I'd just like to briefly point everyone in the right direction to learn what it really is. I posted the following in another thread a while back.
Normally insecticides and other sprays are used as a last resort.
Here is a link which describes IPM properly and if you follow it back there are details regarding its use.
http://www.ipm.ucdavis.edu/GENERAL/whatisipm.html
Actually, Contrary to recent information which has hit the networks IPM is integrated pest (and pathogen) management and the use of botanical teas is one minor part of it.
An IPM program includes, cultivation techniques (companion planting, soil type/depth/moisture, topdress, irrigation regimen), the use of predators, the use of microbial inoculants for pathogen and pest control, the use of insecticide/pesticide sprays of varying intensities for pest and pathogen control, including homemade botanical teas/sprays.
Normally insecticides and other sprays are used as a last resort.
Here is a link which describes IPM properly and if you follow it back there are details regarding its use.
http://www.ipm.ucdavis.edu/GENERAL/whatisipm.html