The Norolak preparation is a plant growth regulator containing 5 % w/v 1-naphthaleneacetic acid. The registration number of the preparation is 11972, registration date — February 11, 2019. The manufacturer of the preparation is the company IFAGRI LTD, based in the United Kingdom. The application area of the preparation includes apples, indicating its use in horticulture and fruit growing for controlling plant growth and development.
