Q: We have seven large olive trees on our property. In the past, we used two different local tree services to spray our trees to minimize the amount of olive production. One company told us we needed two applications in early spring, and the other said we only needed one. Both came at a very high cost, and the results left much to be desired. Every day we had to sweep up hundreds of olives. Do you have any suggestions as to what might work and the timing of when the trees should be sprayed?