Integrated Pest Management Program
Department of Plant Science and Landscape Architecture
UConn Extension
Some selected fungicides labeled for use on herb bedding plants
Fungicide
Azoxystrobin
(Heritage)
4 hr. REI
Group 11
Bacillus
amyloliquefaciens
D747
(Double Nickel)
(Triathlon BA)
4 hr. REI
Organic products
Group 44
Bacillus subtilis QST
713
(Cease)
4 hr. REI
Group 44
Organic product
Bacillus subtilis GB03
(Companion Liquid
Biological Fungicide)
4 hr. REI
Group 44
Organic product
Copper Soap
(Camelot O)
4 hr. REI
Organic product
Targeted Pest
Herbs and spices (except
basil): Alternaria leaf spot,
Downy mildew, Phoma
blight, Powdery Mildew
Basil: Downy Mildew
Powdery mildews, Downy
mildews, Damping off &
root and crown diseases
(Rhizoctonia, Pythium,
Alternaria and Fusarium),
Fungal Leaf Spots, Bacterial
diseases, Rusts
Labeled Crops
Herbs and spices
Comments
Broad spectrum, preventive and curative
fungicide. See supplemental label for use on
basil and other herbs with specific use
instructions.
Herbs and spices
Broad spectrum, preventative biological
fungicide. Begin applications when conditions in
the greenhouse favor disease development.
Alternaria Leaf Blight,
Anthracnose, Bacterial
Blight
Herbs and spices
Broad spectrum, preventative biological
fungicide. For maximum effectiveness, apply
prior to or in the early stages of disease
development. Thorough coverage essential.
Crown Rot, Damping Off
Fungus, Botrytis Blight,
Root Rots (Pythium and
Rhizoctonia), Powdery
Mildew, Bacterial Leaf Spot
Herbs and spices (see
label for specific types)
Preventive biological fungicide. Activates ISR
(induced systemic resistance).
Anthracnose, Alternaria
Blight, Bacterial Blight,
Botrytis Blight, Downy
Mildew
Herbs
Works by contact. See label for specific usage
instructions and plant safety information.
Copper Sulfate
Pentahydrate
(Phyton 35)
48 hr. REI
Group M1
Cyazofamid
(Ranman)
12 hr. REI
Group 21
Fludioxonil
(Emblem)
12 hr. REI
Group 12
Gliocladium
catenulatum J1446
(Prestop)
0 hr. REI
Organic product
Hydrogen dioxide &
peroxyacetic acid
(OxiDate 2.0)
0 hr. REI
1 hr. REI (spray)
Organic product
Insecticidal soap
Potassium salts of
fatty acids
(M-Pede)
12 hr. REI
Organic product
Mandipropamid
(Micora)
4 hr. REI
Group 40
Chives: Bacterial Soft Rot,
Downy Mildew, Botrytis
Coriander, Mint &
Rosemary: Botrytis,
Powdery Mildew
Downy mildew
Herbs such as chives,
coriander, mint, rosemary
and dill
Systemic bactericide and fungicide. See label for
plant safety and specific use instructions.
Thorough coverage is needed.
Basil
Locally systemic fungicide. Apply as a drench.
See label for specific use instructions.
Alternaria Leaf Spot,
Botrytis Blight, Fusarium
Blight
Herbs
Protectant fungicide.
Alternaria, Fusarium,
Phytophthora, Pythium,
Rhizoctonia
Herbs and spices
Preventive biological fungicide. Apply as a
drench only.
Anthracnose, Downy
Mildew, Powdery Mildew,
Pythium Root Rot
Herbs and spices (see
label for specific types)
Works by contact. Strong oxidizing agent.
Powdery Mildew
Herbs and Spices
Works by contact. See label for plant safety
precautions and usage instructions.
Downy Mildew
Basil
Protectant fungicide with contact and
translaminar activity. For use in enclosed
greenhouses with permanent flooring for resale
to consumers. Begin applications prior to
disease development. See label for specific use
instructions.
Works by contact. Application should be made
when the disease is first noticed. Due to varietal
differences, conduct a small-scale test spray
first. Greenhouse applications should be at lower
rates stated on the label.
Works by contact. See label for plant safety
precautions and use directions.
Mineral Oil
(Ultra-Pure Oil)
4 hr. REI
Powdery Mildew
Herbs and spices
Neem oil
(Triact 70)
4 hr. REI
Organic product
Phosphorus Acid
(Alude)
4 hr. REI
Group 33
Phosphorous Acid
(Fosphite)
4 hr. REI
Group 33
Phosphorous Acid &
Hydrogen Peroxide
(OxiPhos)
4 hr. REI
Potassium
bicarbonate
(Milstop)
1 hr. REI
Organic product
Reynoutria
sachalinensis extract
(Regalia PTO)
4 hr. REI
Group P5
Organic product
Powdery Mildew, Downy
Mildew, Anthracnose, Rust,
Leaf Spot, Botrytis,
Alternaria
Downy Mildew,
Phytophthora Root Rot
Herb & Spice Transplants
Herbs and spices
Systemic fungicide. See label for plant safety and
specific use directions.
Phytophthora, Pythium,
Fusarium, Rhizoctonia
Downy Mildew,
Powdery Mildew
Bacterial Leaf Spot, Downy
Mildew
Herbs and spices
Systemic fungicide. See label for plant safety and
specific use directions
Herbs and spices
Systemic fungicide and contact sanitizer. See
label for plant safety precautions.
Powdery Mildew and
others (see label)
Herbs (see labels for
specific types)
Broad spectrum, contact fungicide. Thorough
coverage is essential. Begin applications at first
sign of disease and repeat as needed.
Downy Mildew, Powdery
Mildew, Rust
Herbs and spices
Formulation of an extract from the Giant
Knotweed. Use preventatively to increase the
natural defense system of plants.
Streptomyces
K61
(Mycostop)
4 hr. REI
Organic product
Streptomyces lydicus
WYEC 108
(Actinovate AG)
1 hr. REI
Organic product
Streptomyces lydicus
WYEC 108
(Actino-Iron)
4 hr. REI
Organic product
Trichoderma
asperellum CC 012
Trichoderma gamsii
CC 080
(Bio-Tam 2.0)
4 hr. REI.
Organic product
Trichoderma
harzianium
(PlantShield HC)
(RootShield Granules)
(RootShield WP)
0 hr. REI
Organic products
Trichoderma
harzianum &
Damping Off (Alternaria,
Rhizoctonia), Wilt and Root
Diseases (Fusarium,
Pythium, Phytophthora),
Botrytis (suppression)
Suppression of soil borne
fungi such as Fusarium,
Rhizoctonia, Pythium,
Phytophthora,
Powdery Mildew, Downy
Mildew, Botrytis, Alternaria
Root rot and damping off
fungi such as Fusarium,
Pythium, Rhizoctonia,
Phytophthora
Herbs
Preventative biological fungicide. Contains a
beneficial bacterium. Repeat applications may
be needed.
Herbs, spices and mints
Preventive biological fungicide that contains a
beneficial bacterium.
Fusarium, Phytophthora,
Pythium, Rhizoctonia,
Sclerotina, Thielaviopsis
Herbs
Preventative biological fungicide.
Root rots such as Pythium,
Rhizoctonia Fusarium,
Cylindrocladium, and
Thielaviopsis
Herbs, spices and mints –
soil applications only
Preventative biological fungicide for use in soil
applications. Contains a beneficial fungus. Acts
as a preventative and will not cure diseased
plants. Becomes active when soil temperatures
are above 50 °F. Greenhouse foliar applications
are for non-food crops only.
Root rots such as Pythium,
Phytophthora, Rhizoctonia,
Preventive biological fungicide that contains a
beneficial bacterium with iron and humate
(fulvic and humic acids).
Herbs and spices
Granules for use in greenhouse planting mix, WP
as a soil drench
Preventative biological fungicide. Becomes
active when hold temperatures are above 50 F.
Trichoderma virens
(Root shield Plus+
Granules)
0 hr. REI
(RootShield Plus+ WP)
4 hr. REI
Organic products
Fusarium,
Cylindrocladium,
Thielaviopsis
WP: No overhead spray.
Fungicides are grouped by their mode of action (MoA) and each MoA group is assigned a Fungicide Resistance Action Committee (FRAC) code.
Most systemic fungicides (that are absorbed into plant tissues) are specific in their mode of action. Protectant fungicides are less likely to
develop resistance problems as they have multi-site modes of action (M). To prevent the development of resistance, alternative applications
among difference FRAC codes and incorporation preventative biological fungicides and cultural controls into your management plan. See
www.frac.info/frac/indes.htm
This information is supplied here with the understanding that no discrimination is intended and no endorsement supplied. Due to constantly
changing regulations, we assume no liability for suggestions. Growers should always read and follow label instructions. Always follow label
instructions regarding registered uses and note cautions. To avoid any phytotoxicity problems, spot test first before widespread use.
Organic Materials Review Institute is a non-profit organization whose mission is to publish information on lists of materials allowed for
organic food production. Final decisions regarding organic use production reside with the USDA.
By L. Pundt (UConn Extension) and T. Smith (UMass Extension). 2005. Updated December, 2016
Disclaimer for Fact Sheets:
The information in this document is for educational purposes only. The recommendations contained are based on the best available knowledge at the time of
publication. Any reference to commercial products, trade or brand names is for information only, and no endorsement or approval is intended. UConn Extension does not
guarantee or warrant the standard of any product referenced or imply approval of the product to the exclusion of others which also may be available. The University of
Connecticut, UConn Extension, College of Agriculture, Health and Natural Resources is an equal opportunity program provider and employer.