Macadamia Tree Health Initiative Amendments Act

This bill amends the 1990 Food, Agriculture, Conservation, and Trade Act to establish a new "Macadamia Tree Health Initiative" under Section 1672(d). It authorizes federal research and extension grants for specific activities including developing pest control tools, creating area-wide pest management programs, surveying macadamia production, and studying tree biology and pesticide impacts on beneficial insects. The initiative is funded through annual appropriations for fiscal years 2024 through 2035. It directly affects macadamia growers and researchers in growing regions by directing federal resources toward addressing threats like plant pests and noxious weeds.