With IPM routine - foliar on whatever you wanna use.
I've been using Serenade mixed in with RO water, coconut water (pure no sugar no preservatives), kelp tea, Pro-tekt and ful-power.
For neem to use in an IPM you can make a tea with it.
Soak a 1/4 cup in a quart mason jar, put it in the back of the fridge and pour off the liquid say a few tbs into a gallon of water. Mix in your other amendments listed above and foliar on.
Can make the kelp tea the same way. They will keep about 3 weeks in the fridge. About 2 days not in fridge.
I've been running no-till coots mix for several years. Neem cake is in the soil mix. It's good for a lot of stuff. The oil is not good unless you really have a bad infestation you cant get rid of any other way. Plus it has a bad taste and you will taste it in the smoke. So try to avoid.
Neem is best in soil really, and the only place I put it.
So
@Mastrmasn to answer your question, no.
IPM is a foliar application for pest management.
ACT or aerated compost teas are for adding in more soil microbes.
By adding these teas to the soil you can overwhelm bad microbes in the soil for sure but an IPM is a foliar application for airborne pest and disease.
Seranade is a rhizobacteria = a beneficial bacteria that works in a symbiotic way with roots and will also help plants grow bigger.. a side benefit and why we foliar on, it will eat pests (including bad bacteria, molds and some viruses) on the leaves of plants. It is also systemic which means the active ingredient (bacillus subtlis) gets inside the plant and will fight pathogens from the inside as well.
I use it weekly as part of my IPM routine.
I will use other similar organic products in my IPM routine as well.