Paclobutrazol is a commonly used plant growth regulator for controlling plant height, which has biological activity in the parts per billion range and a half-life in water of over 6 months. Pesticides such as paclobutrazol have potential to accumulate in recaptured irrigation water over time.

A recently published article outlines various experiments conducted at the University of Florida where irrigation water containing paclobutrazol was effectively removed using a laboratory-scale granular activated carbon (GAC) filtration system. There is potential that GAC can be used to remediate recaptured irrigation water for a range of agrichemicals relevant to the greenhouse and nursery industry.

Access the full study through SpringerLink.