Prohexadione-calcium in the product Regalis Plant Growth Regulator

This publication provides a summary of data reviewed and an outline of the regulatory considerations for the proposed registration of REGALIS PLANT GROWTH REGULATOR as a foliar spray to apples to suppress shoot growth and lower the requirement for summer and winter pruning. The active constituent of the product is prohexadione-calcium, which has been approved by the APVMA. The APVMA also seeks public comment prior to the chemical product being registered for use in Australia.