Two good reasons to cut osage between deer and turkey seasons, if you have the option to choose. First, git yerself out about midday in July (where in my world 95 degrees and 80% rh is typical) and work you up a nice big osage tree. If you live through it, you'll understand. Second, by cutting wood early in the Spring, you have time for the sapwood to dry out some before the summer heat brings the bug larvae into action. They tend to not have as much appetite for the dryer wood. Only bad infestation I've had, in ten or so cuttings, was from Summer cut wood, and it was no fun.