Introduction
Eradication Tactics
   Disinfectants
   Water Treatment
   Soil Fumigation
Prevention Tactics
   Contact Fungicides
   Systemic Fungicides
      Phenylamide
      Phosphonates
      Cinnamic Acids
      Quinone Outside Inhibitor
Resistance
Summary

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Disclaimer: The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products implies no endorsement by the authors. Criticism of products or equipment not listed is not implied or intended. Due to continually changing laws and regulations, we can assume no liability for the suggested use of chemicals contained herein. Pesticides should be applied according to the label directions on the pesticide container.

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Chemical Control—Prevention Tactics (continued)

Systemic Fungicides—Cinnamic Acid Group

For the nursery industry, this group includes only one chemical: dimethomorph. Its properties are similar to the phenylamide group’s. It has xylem movement only (from roots to shoots), is applied to foliage for downy mildew control, and is active only against oomycetes. It also moves from roots to shoots but is less effective overall than the phenylamide group.

The cinnamic acid group is active on Phytophthora diseases but does not control diseases caused by Pythium.

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