Chlorpropham (or CIPC) is isopropyl-N-(3-chlorophenyl) carbamate, and is widely used as a sprout suppressing agrochemical applied to stored potatoes. It works by interfering with cell division to inhibit sprout development.
Effective sprout suppression is a fundamental component of managing stored potato quality. CIPC is particularly important for potato storage in the processing sector, where its use - on a global basis - is almost universal. This is because crops destined for the processing market must be stored at relatively warm temperatures (6-13°C) in order to maintain frying quality.
CIPC has been available for over fifty years and was in place even before refrigeration/temperature controlled storage was an option to growers. It is currently applied to approximately half of the stored potato crop in GB and hence the risk of withdrawal has very significant implications.
Typically applied to stores by dedicated fogging contractors, CIPC maintains high quality potato tubers for up to a year, and is deemed a critical necessity within the current market place. 1.2 million tonnes of potatoes are subjected to CIPC treatment every year.
Like all agrochemicals, the use of CIPC is regulated under the Food and Environment Protection Act (FEPA) 1985 and the Health and Safety at Work Act 1974 and covered by the Code of Practice for using plant protection products (2006). In addition, following a review by the Advisory Committee on Pesticides in 2007 (now the Expert Committee on Pesticides), the use of CIPC is now subject to a stewardship process - embodied within this website - which is operated by the Potato Industry CIPC Stewardship Group.
Click here for more information about Sprout Suppression.
Click here for information about the CIPC Stewardship Group membership.
USE PLANT PROTECTION PRODUCTS SAFELY. ALWAYS READ THE LABEL AND PRODUCT INFORMATION BEFORE USE.