Maleic hydrazide as a potato sprout suppressant

MH is applied to the growing crop as a foliar spray, not as an in-storage treatment; this also enables it to provide control of volunteers/groundkeepers in potato.

Review: MH, whilst inconsistent in its own level of control, does provide an element of stability to a sprout suppression strategy – especially over the loading, drying and pull-down periods, and it was therefore a ‘must-have’ component of control strategies in the European processing stores visited by AHDB staff.

Current difficulties in the management of MH-treated stocks in relation to disposal of waste for stockfeed (due to a metabolite data gap) could seriously compromise the availability of the most cost-effective sprout control options post-CIPC which should include the regular use of maleic hydrazide.