With plant growth regulator, we have a reliable solution for olive fruit prevention. Trees can be sprayed from late January to early April before any flower bud formation on the olive tree. The chemical causes any flowers which form in April and May to wither and fall off without setting fruit. This effectively prevents the messy problem caused by unwanted olives in late fall and into the following year, usually with 90% fruit elimination or better! The spray only works for a single season, and must be done every year. Trees under stress, radically pruned, or with sensitive plants under them may require special precautions.  Covering plants during application or hosing off the plants beneath the tree before and after the spraying will help protect them, and our service technicians will provide this service to avoid any damage to other plants. We do offer discounts for multiple trees, neighborhoods, and communities!