Ryan and Kyle are all over this!
The ones I'm sure they are both completely accurate on are Penn State, and the bents named after their great University, and turf science dept. (How did you ever gues that Kyle?
), and Tifdon GA's univesity research station on the bermuda grasses.
The dish soap is a great spray to raise the grubs or force them above the ground. I learned that in a "Scouting the GC for insect pests" seminar I took with the GCSAA, I believe Rossi conducted years ago. The idea was in IPM, to not just willy nilly spray until the grubs reached a critical population, and in isolated areas, rather than a full field insecticide application. You spray a given area with the Dawn, and then count how many grubs come up, and if it is not too many, you don't need to spray, but if you have many, then spray as isolated an area as is effected. Also, we learned that you can mechanically kill'em with the "spikes of death". All you have to do is knick em. Rossi made a gag spiked flat iron pad on a handle to punch along the ground, thus not needing a chem app to spray. You don't see the modern sup doing much of that!
I'm not fully confident on the 2-4 D as an absolute as a bentgrass killer in hot weather, but a great broadleaf app on all manner of blues, bermuda, and ryes. That was what I was told. It can come in effect when the sprayer of the fairway for broadleaf gets too close to a bent green. Any super can expand or correct this neophytes information.
I'll let the insecticide consumable in the mouth run awhile. Most any organic turf web site talks about it. It is not practical for actual commercial use, and the base toxic chemical is banned for commercial use as it is very dangerous and deadly in concentrated form that could be tank mixed. I've even heard of a fellow that died sitting on a small puddle of it in concentration as his skin absorbvd it. Yet, folks do put it in their mouth!
I hope some supers come up with some more fun and interesting turf or golf construction related to turf questions.