Drought Tolerance

Plants treated with Cambistat and Tritmect undergo several changes that help them be more resistant to drought conditions, including:

  • Increased abscic acid production allows stomates to close faster when dry.
  • Increase trichromes (leaf hairs) protect leaves from drying wind.
  • Thicker cuticle (waxy) layer prevents desiccation.
  • Increased fibrous root system allows plant to better mine water from the soil.
  • Reduced growth requires fewer resources to maintain.
Drought Tolerance

Drought symptoms reduced on white oak. Photo Courtesy of Dr. Gary Watson – Morton Arboretum.

Drought symptoms reduced on honeylocust

Drought symptoms reduced on honeylocust.

Treatment Strategy

There are two different growth regulators to utilize depending on the type of plant being treated: Cambistat®, which is used for trees, and Trimtect®, which is used for shrubs, vines, and groundcovers. Cambistat is applied to soil and may be applied anytime that this ground is not frozen or saturated with water. Trimtect is applied by foliar spray and may be used during the growing season.

  • Soil Application using Cambistat Gallon

    Notes: For Trees
    Dosage: Varies by species. See label for details.
    Timing: Anytime ground is not frozen or saturated with water.
    Re-Treatment: Every 3 years or when normal growth resumes.
    Cambistat Gallon
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  • Foliar Spray using Trimtect

    Notes: For Shrubs
    Dosage: Varies by species. See label for details.
    Timing: Growing season when plants are in leaf.
    Re-Treatment: 8-12 weeks in some climates. Annually in other climates.
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A Diagnostic Guide is designed to help you identify a pest issue and management solutions. Always refer to product label for all rates and approved uses. Some images courtesy Use of the images does not imply endorsement of treatments by

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