How to Manage Pests

UC Pest Management Guidelines


Fruit Set with Gibberellic Acids (GA3)

(Reviewed 9/08, updated 9/08)

In this Guideline:

Variety Amount to use (g a.i. = grams active ingredient) Time

Calculate impact of pesticide on air quality
Bee precaution pesticide ratings
Not all registered pesticides are listed. Always read label of product being used.
Note: Certain formulations emit high amounts of volatile organic compounds (VOCs); use low-VOC formulations (PDF). Regulations affect use for the San Joaquin Valley from May 1 to October 31, 2015 and 2016. Review the Department of Pesticide Regulation's updated fact sheet (PDF)
A. CLEMENTINE MANDARIN 1–8 g a.i./acre in water spray Make 1 to 2 applications between 50% petal fall and
      3 weeks after petal fall
  COMMENTS: Restricted entry interval (REI): 12 hours. Use a dilute spray with sufficient spray volume for adequate coverage of tree canopy. Do not apply mixtures of materials that produce a pH higher than 8.0 (see precautions under Plant Growth Regulators-General Information).



[UC Peer Reviewed]

UC IPM Pest Management Guidelines: Citrus
UC ANR Publication 3441

Plant Growth Regulators

  • C. J. Lovatt, Botany and Plant Sciences, UC Riverside
Acknowledgment for contributions to Plant Growth Regulators:
  • C. W. Coggins, Jr., Botany and Plant Sciences, UC Riverside

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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