MYTH:  A bleach solution is the best choice for disinfecting pruning tools

MYTH BUSTERS SERIES

MYTH: A bleach solution is the best choice for disinfecting pruning tools

THE FACTS

A bleach solution is NOT the best method for disinfecting pruning tools

• Chlorine bleach is an oxidizing agent - it is CORROSIVE
• Bleach is POISONOUS TO PLANTS, more so than any of the other commonly used disinfectants
• Any bleach left on pruning tools will DAMAGE the tissues of the next cut.
• Prolonged contact between bleach and metal may cause pruning equipment to pit or discolour.
• Pits (small holes) caused by the corrosion can harbour microbes that may FURTHER damage plants.

BETTER PRACTICE

• Clean pruning tools with household cleaners such as Lysol.

Sources:
Dr. Linda Chalker-Scott
https://s3.wp.wsu.edu/uploads/sites/403/2015/03/Pruning.pdf

https://s3.wp.wsu.edu/uploads/sites/403/2015/03/cloroxed-clippers.pdf