This project is focused on young tree protection from HLB through reduction in populations of vector ACP and irrigation management for improved tree health. Metalized polyethylene mulch and irrigation management can alleviate the problem by repelling ACP and controlling flush cycles to improve ACP spray timing and efficiency. Replicated experiments planned for the Ridge, Gulf and River regions using a split plot factorial design to compare costs and benefits of bare ground to mulch (main plots), and two ACP management programs (subplots) based on soil applied insecticides compared to spraying on flush were initiated. The mulch experiment at Ridge location (Lake Alfred) is already planted. The orange trees planted were Valencia on Carrizo rootstock with 19 ft spacing between rows and 6 ft spacing between trees. Mulch is also installed at the Gulf location (Immokalee) and plants ready to be planted in August. Mulch and plants are also ready for the River (Vero Beach) location which will also be planted in August. We are using 96 inch wide metalized reflective mulch (Shine N’ Ripe XL, the original MRM) instead of 72 inch wide mulch used in the previous experiments and therefore expect more reduction in ACP populations over longer period. Data collection will include periodic pest scouting and counts, HLB incidence, soil moisture/temperature and tree growth variables. Specific objectives include 1) assessment of effects of UV reflective mulch on ACP control, HLB incidence and severity, tree growth and ultimately fruit production, and 2) assessment of ACP control and resistance to insecticides in response to flush synchronization for ACP control using mulch/drip irrigation system on three different soils types. Economic analysis summarizing 3-year and projected costs and benefits of mulch system with and without flush control will be conducted.