Biopesticides Labeled for Managing Bacterial Diseases Organically

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Following is a list of some biopesticides lbaeled for bacterial diseases affecting vegetable crops in the northeastern U.S.  The active ingredient follows product name.  Products listed with OMRI (Organic Materials Review Institute) are NOP compliant.  Check state registration: each product may not be registered in all states.  Also, always check with your certifier before purchasing any product.  Labeled crops and bacterial diseases are listed below the information about each product.

If you know a biopesticide not listed, please contact Meg McGrath.

Actinovate AG.  0.0371% Streptomyces lydicus strain WYEC 108. For best results with applications to foliage, label indicates to use a spreader-sticker.  OMRI-listed.   EPA Reg. No. 73314-1.  Monsanto BioAg (formerly Natural Industries, Inc.).

  • Cucurbits: bacterial leaf spot
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

AgriPhage.  < 1% Bacteriophage active against Xanthomonas campestris pv. vesicatoria and Pseudomonas syringae pv. tomato. NOP compliant, not reviewed. EPA Reg. No. 67986-1-70051.  OmniLytics; distributed by Certis USA.

  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

AgriPhage-CMM.  < 1% Bacteriophage active against Clavibacter michiganensis subsp. michiganensis.  Labeled for bacterial canker.  NOP compliant, not reviewed.  EPA Reg. No. 67986-6-70051.  OmniLytics; distributed by Certis USA, LLC.

  • Tomato:  bacterial canker

AVIV.  0.08% Bacillus subtilis strain IAB/BS03.  OMRI-listed.  EPA Reg. No. 91473-1-86182.  Seipasa S.A.

  • Brassica crops: Xanthomonas leaf spot (caused by a different strain of Xanthomonas campestris pv. campestris from the one causing black rot)
  • Carrot: bacterial blight/leaf spot
  • Leafy vegetables:  bacterial blight
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Brandt Organics Aleo.  78% garlic oil.  OMRI-listed.  Exempt from EPA registration.  Brandt Consolidated, Inc.

  • Brassica crops: black rot
  • Tomato:  bacterial speck

Cease.  1.34% Bacillus subtilis strain QST 713. Broadly labeled for use on greenhouse vegetables. OMRI-listed.  EPA Reg. No. 69592-19-68539.  BioWorks, Inc.

  • Brassica crops: black rot
  • Cucurbits: angular leaf spot and bacterial fruit blotch
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Companion.  0.03% Bacillus subtilis strain GB03.  EPA Reg. No. 71065-3.  Growth Products.

  • Cucurbits: bacterial wilt
  • Onion: bacterial soft rot
  • Pepper:  bacterial spot
  • Tomato:  bacterial spot

Double Nickel 55 LC and WDGBacillus amyloliquefacinens strain D747, 98.8% and 25%, respectively.  OMRI-listed.  EPA Reg No. 70051-107 and 108, respectively.  Certis USA, LLC.

  • Brassica crops: black rot
  • Carrot: bacterial blight/leaf spot
  • Leafy vegetables:  bacterial blight
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

FungOUT. 1.07% citric acid.  OMRI-listed.  Exempt from EPA registration.  AEF Global Inc.

  • Tomato:  bacterial canker

GreenFurrow BacStop.  7.5% clove, 3.5% rosemary, 3.2% peppermint oil, 3.2% cottonseed oil, 3.0% thyme, 3.0% garlic, 2.0% cinnamon.  Exempt from EPA registration.  Mar Vista Resources.

  • Cucurbits: bacterial leaf spot, bacterial wilt, and bacterial fruit blotch
  • Pepper:  bacterial spot
  • Tomato:  bacterial canker and bacterial spot

KeyPlex 350 OR. 0.063% yeast extract hydrolysate from Saccharomyces cerevisiae.  Contains defensive proteins (alpha-keto acids) and secondary and micronutrients.  Elicits systemic acquired resistance in plants against fungal and bacterial pathogens. Labeled for general disease control in vegetables. EPA approval for organic production. EPA Reg. No. 73512-4. KeyPlex.

LifeGard WG.  40% Bacillus mycoides isolate J.  Biological Plant Activator.  OMRI-listed.  EPA Reg No. 70051-119.  Certis USA, LLC.

  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

OxiDate 2.  27% hydrogen dioxide and 2% peroxyacetic acid. OMRI-listed.  EPA Reg. No. 70299-12. BioSafe Systems, LLC.

  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

PerCarb.  85% sodium carbonate peroxyhydrate.  OMRI-listed.  EPA Reg. No. 70299-15. BioSafe Systems, LLC.

  • Brassica crops: black rot
  • Carrot: bacterial blight/leaf spot
  • Onion: bacterial leaf blight
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Procidic. 3.5% citric acid.  Procidic was reviewed and determined to be NOP compliant by Washington State Dept of Ag. Exempt from EPA registration.  Greenspire Global, Inc.

  • Brassica crops: black rot and soft rot
  • Cucurbits: bacterial wilt of cucumber

Regalia. 5% extract of Reynoutria sachalinensis. Boosts the plant’s natural defense mechanisms against certain fungal and bacterial diseases. Broadly labeled.  OMRI-listed.  EPA Reg. No. 84059-2. Marrone Bio Innovations, Inc.

  • Brassica crops: Xanthomonas leaf spot (caused by a different strain of Xanthomonas campestris pv. campestris from the one causing black rot)
  • Carrot: bacterial blight/leaf spot
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Serenade ASO. 1.34% Bacillus subtilis strain QST 713. OMRI-listed.  EPA Reg. No. 264-1152.  Bayer CropScience.

  • Brassica crops: black rot
  • Carrot: bacterial blight/leaf spot
  • Cucurbits: angular leaf spot
  • Leafy vegetables:  bacterial blight and leaf spot
  • Onion: bacterial leaf blight
  • Tomato:  bacterial canker, bacterial speck and bacterial spot

Serenade Opti. 26.2% Bacillus subtilis strain QST 713. OMRI-listed. EPA Reg. No. 264-1160.  Bayer CropScience.

  • Carrot: bacterial blight/leaf spot
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Serifel.  9.9% Bacillus amyloliquefacinens strain MBI 600. OMRI-listed.  EPA Reg No. 71840-18.  BASF Corporation.

  • Carrot: bacterial blight/leaf spot
  • Leafy vegetables:  bacterial leaf spot
  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot (supplemental label)

Sporan EC2. 16% rosemary oil, 10% clove oil, 10% thyme oil, 2% peppermint oil. OMRI-listed.  Exempt from EPA registration.  KeyPlex.

  • Pepper:  bacterial spot
  • Tomato:  bacterial spot

StargusBacillus amyloliquefacinens strain F727.  OMRI-listed. EPA Reg. No. 084059-28. Marrone Bio Innovations, Inc.

  • Carrot: bacterial blight/leaf spot
  • Pepper:  bacterial spot
  • Tomato:  bacterial spot

Taegro 2. 13% Bacillus subtilis var. amyloliquefaciens strain FZB24. OMRI-listed. EPA Reg. No. 70127-12. Novozymes Biologicals, Ind.

  • Pepper:  bacterial spot
  • Tomato:  bacterial speck and bacterial spot

Theia.  100% Bacillus subtilis strain AFS032321. OMRI-listed. EPA Reg. No. 94713-2-92488.  AgBiome Innovations Inc.

  • Brassica crops: black rot and bacterial leaf spot/blight caused by Pseudomonas
  • Carrot: bacterial blight/leaf spot
  • Cucurbits: angular leaf spot
  • Leafy vegetables:  bacterial blight
  • Pepper:  bacterial spot
  • Tomato: bacterial speck and bacterial spot

Thymox Control.  27% thyme oil.  Proprietary nano emulsion technology. Broadly labeled for diseases caused by bacteria as well as fungi; crops not specified.  OMRI-listed.  Exempt from EPA registration.  Kemin Industries, Inc.  Manufactured by Laboratoire M2.

Thyme Guard.  23% thyme oil extract. Broadly labeled for diseases like Botrytis gray mold, late blight, powdery mildew and others caused by fungi, bacteria, viruses, and nematodes; crops not specified.  Exempt from EPA registration.  Determined to be NOP compliant by Washington State Dept of Ag. Agro Research International.

Timorex Act.  12.5% tea tree oil.  OMRI-listed.  EPA Reg. No. 86182-3-88783.  Summit Agro USA, LLC.

  • Carrot: bacterial blight/leaf spot
  • Leafy vegetables:  bacterial blight
  • Pepper:  bacterial spot
  • Tomato:  bacterial canker, bacterial speck and bacterial spot

Timorex Gold.  23.8% tea tree oil.  OMRI-listed.  EPA Reg. No. 86182-1.  Summit Agro USA, LLC.

  • Leafy vegetables:  bacterial blight
  • Pepper:  bacterial spot
  • Tomato:  bacterial canker, bacterial speck and bacterial spot

More information/prepared by:

Margaret Tuttle McGrath
Associate Professor
Long Island Horticultural Research and Extension Center (LIHREC)
Plant Pathology and Plant-Microbe Biology Section
School of Integrative Plant Science
College of Agriculture and Life Sciences
Cornell University
mtm3@cornell.edu

Please Note: The specific directions on fungicide labels must be adhered to — they supersede these recommendations, if there is a conflict. If you are farming organically, before purchase make sure product is registered in your state and approved by your certifier. Any reference to commercial products, trade or brand names is for information only; no endorsement is intended.

Up-dated 2-1-23.