Hello mint, not a spray, but you could try a pheromone trap. It's the right time of year to use one. Available in all the GCs and most big supers, also through Amazon etc. You hang the plastic pyramid containing the sticky card and the pheromone capsule in the tree, it attracts the male moths, they get stuck, no hanky-panky with the females so no (or fewer) grubs in the fruit. It's worth changing the capsule after a couple of months, as advised, to get the second flush of males.