Maleic hydrazide, often known by the brand name Fazor is a plant growth regulator that reduces growth through preventing cell division but not cell enlargement.

[1][2] It is applied to the foliage of potato, onion, garlic and carrot crops to prevent sprouting during storage.

[3] It can also be used to control volunteer potatoes that are left in the field during harvesting.

The banning of chlorpropham as a sprout suppressant in 2019 has led renewed interest in how maleic hydrazide can be used in potatoes.

This organic chemistry article is a stub.