ReTain Extends the Viability of Blooms, Allowing for Increased Chance of Pollination Research conducted at The Ohio State University shows that ReTain extends the life of the flower by 1–3 days, depending on temperature conditions, by inhibiting ethylene production and thus allowing the stigmatic surface and other flower organs to remain viable longer. These longer-living flowers have an increased chance of getting pollinated by bees working the orchard and setting a better crop. Maximize Fruit Set Following Poor Chilling Conditions To get a strong bloom and maximize good fruit set potential, California fruit and nut crops require sufficient cold winter weather. In cherries, these minimum requirements can vary for each cultivar. The variety (e.g., standard or low-chill varieties), rootstock, the crop load previous year, amount of fog, precipitation and / or overhead cooling are all variables, which can affect the amount of chilling needed. Insufficient cold weather to achieve the variety’s requirement will lead to a protracted and uneven bloom often affecting the synchronicity with pollinizer varieties and leading to poor fruit set and quality. California growers need to track the effective chilling hours referred to as chill portions per the Dynamic Model recommended by the University of California. This model takes into account chill portions accumulated at various temperatures during the whole dormant period. For more information on the Dynamic Model, refer to the following website: fruitsandnuts.ucdavis.edu/chill-calculator Other Important Information Do not apply after petal fall Do not apply ReTain if rain is expected within 8 hours after application
Products That Work, From People Who Care ® | valent.com | 800-6-VALENT (682-5368) Always read and follow label instructions. Products That Work, From People Who Care is a registered trademark of Valent U.S.A. LLC. ReTain is a registered trademark of Valent BioSciences LLC. ©2024 Valent U.S.A. LLC. All rights reserved. Printed in the U.S.A. 2024-RETCA-8011 1/24
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