Plant Growth Regulator

Mandolin® is a plant growth regulator that promotes sizing and value improvements in citrus fruits by thinning. Overcrowded fruit can cause carbohydrate drain, which can weaken trees and make them more susceptible to pest and sun damage. Mandolin® reduces these problems by thinning immature fruit at the appropriate time. 


  • Best results are obtained when applications are made around normal June-drop
  • Use of a non-ionic adjuvant in the tank mix may improve spray coverage and overall results


  • Thinning citrus may promote sizing and value

Registered States

  • Registered
  • Unregistered

Find a Retailer

Get what you need, nearby.

AMVAC’s website is updated regularly and may not contain the most current EPA registered product label or safety data sheet. Please contact your local AMVAC representative to confirm you have current product information. It is the sole responsibility of the end user to read and follow product use directions and to comply with all federal, state or local laws. This product may not be registered in all states and users are advised to confirm that the product is registered in all states of intended use.