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PHYTON

Phyton 35 Bactericide and Fungicide

Phyton 35 Bactericide and Fungicide is a unique systemic fungicide that protects and cures ornamentals and edibles from the inside out, delivering long-lasting disease control trusted by professional growers.

As low as $287.89
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Phyton 35 Bactericide and Fungicide Product Page
Min : 287.89 - Max : 287.89
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Price as of
09/14/25
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Phyton 35 Bactericide and Fungicide, manufactured by Phyton Corporation, is an effective broad-spectrum, bactericide and fungicide concentrate that delivers preventive and curative control against a broad spectrum of bacterial and fungal diseases through deep, plant-wide action in ornamentals, fruits, vegetables, and herbs. 

This dual-action product's patented chemistry allows it to be absorbed quickly and efficiently, so it starts working faster than many conventional fungicides. One application can keep protecting your plants for up to 3 weeks, depending on environmental conditions. That means fewer sprays, reduced labor, and a more consistent disease management program.

Phyton 35 Bactericide and Fungicide delivers deep, long-lasting defense against both fungal and bacterial pathogens such as leaf scorch, blight, fireblight, and more with one convenient application in ornamentals, fruits, vegetables, and herbs. It’s preventive, curative, safe for multiple crop stages, and an excellent resistance management partner.

Tools Needed

It can be applied with any type of application equipment that gives uniform coverage of all foliage, including ground, aerial, and low-volume sprayers and chemigation equipment. For example, spray rigs, backpack sprayer, or handheld pump sprayer. 

How to Use

  • Step 1: For annual and perennial bedding plants, apply 10 to 45 fl. oz. of Phyton 35 Bactericide and Fungicide per 100 gallons of water. For tropical foliage, use 13 to 50 fl. oz. of product per 100 gallons of water. Refer to the product label for specific application rates and restrictions. 
  • Step 2: Fill the sprayer with half the amount of water, add the proper amount of product, and pour in the remaining half of the water. Close the tank lid and shake until the solution is well-mixed. 
  • Step 3: Ensure thorough coverage of leaves, stems, and growing media until wet, but not to the point of runoff. Repeat applications every 7 to 14 days. 

Where to Use

Phyton 35 Bactericide and Fungicide can be used be for ornamentals, annual and perennial bedding plants, cut flower crops, potted flowering crops, nursery crops, tropical foliage crops, herbaceous and woody stock plant and cuttings, greenhouse, field, landscape, and interior.

It may also be used for fruits, vegetables, and herbs. 

When to Use

Begin applications before the first sign of disease.

Safety Information

Phyton 35 Bactericide and Fungicide is safe for people and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product. 

Keep people and pets out of the treated areas until 48 hours have passed after application. 

Special Considerations

Compatible with most fungal and insecticidal biopesticides when applied at least 2 days before or after application of the biopesticide.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions1 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA
BrandPHYTON
Keith's Pro Tips"Phyton 35 has been tested on a wide variety of agricultural and ornamental plants without phytotoxicity SYMPTOMS(HOWEVER BECAUSE IT IS NOT POSSIBLE TO TEST ALL plant species, varieties and cultivars and because environmental factors and varietal stage of growth may affect phytotoxic expression, it is recommended that a small group of test plants be treated at the anticipated dosage rate and observed for 5 to 7 days to determine phytotoxicity before treating large numbers of those plants."
Product DrawbacksWhile low when used as directed, phytotoxicity (plant damage) can still occur, especially on sensitive plants or in high temperatures or humidity.
Target PestsAlgal Leaf Spot And Twig Infection, Alternaria Spp., Angular Leaf Spot, Anthracnose, Anthracnose (Colletotricum), Apple Scab (Venturia Inaequailis), Bacterial Blast (Pseudomonas), Bacterial Blight, Bacterial Canker, Bacterial Soft Rot (Erwinia), Bacterial Speck Of Tomato (Pseudomonas), Bacterial Spot, Bacterial Spot (Xanthomonas), Bacterial Spot Of Tomatoes, Ball Moss, Black Rot (Xanthomonas), Black Spot Of Rose (Diplocarpon Rosae), Blossom And Shoot Blasts, Blossom Blast (Pseudomonas), Botrytis, Brown Spot (Alternaria), Canker, Cedar-Apple Rust (Gymnosporangium), Cercospora Spp., Citrus Canker, Crown Gall (Agrobacterium Tumefaciens), Cylindrocladium Blight, Cytospora Canker, Dutch Elm Disease (Ceratocystis/Graphium Ulmi), Early Blight (Cercospora), Erwinia, Fire Blight (Erwinia), Gray Mold (Botrytis), Late Blight (Septoria), Leaf Blight (Alternaria), Leaf Blight (Septoria), Leaf Scorch, Leaf Spot, Leaf Spot (Alternaria), Leaf Spot (Cercospora), Leaf Spot (Entomosporium), Nectria Canker, Needle Blight (Dothistroma), Needle Cast (Rhabdocline), Nematodes, Oak Wilt (Ceratocystis Fagacearum), Olive Knot (Pseudomonas Savastanoi), Peacock Spot (Cycloclonium), Phomopsis, Phytophthora Spp, Powdery Mildew, Pseudomonas Spp., Pythium Spp., Red Algae, Rhizoctonia Spp., Rust, Scab, Shot Hole, Spanish Moss, Stem Blight, Twospotted Spider Mite, Verticillium Spp., Volutella Leaf & Branch Blight, Walnut Blight (Xanthomonas), Whiteflies, and Xanthomonas Leaf Spot.
Application EquipmentBackpack Sprayer, Chemigation System, Pump Sprayer, Spray Rig
Application MethodsBroadcast Spray, Overhead Sprinkler Irrigation
Active IngredientCopper Sulfate Pentahydrate 21.27%
Product TypeFungicide
FormulationEmulsifiable Concentrate (EC)
Application RateFor annual and perennial bedding plants, apply 10 to 45 fl. oz. of Phyton 35 Bactericide and Fungicide per 100 gallons of water. For tropical foliage, use 13 to 50 fl. oz. of product per 100 gallons of water.
Shelf LifePhyton 35 Bactericide and Fungicide will last for 3 years when stored in a dry, clean area.
YieldCoverage will vary.
Use SitesOutdoors
Time to KillPhyton 35 Bactericide and Fungicide will control diseases within several days and up to 3 weeks.
Comparable ProductsLiqui Cop Copper Fungicide
Incompatible Home SidingBrick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl
EPA Registration #49538-5
More Information
Restricted Use No
Shipping Restrictions AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA
Availability Online
Signal Word WARNING
Keith's Pro Tip "Phyton 35 has been tested on a wide variety of agricultural and ornamental plants without phytotoxicity SYMPTOMS(HOWEVER BECAUSE IT IS NOT POSSIBLE TO TEST ALL plant species, varieties and cultivars and because environmental factors and varietal stage of growth may affect phytotoxic expression, it is recommended that a small group of test plants be treated at the anticipated dosage rate and observed for 5 to 7 days to determine phytotoxicity before treating large numbers of those plants."
Time to Kill Phyton 35 Bactericide and Fungicide will control diseases within several days and up to 3 weeks.
Chemical Type Fungicide
Formulation Emulsifiable Concentrate (EC)
Application Methods Broadcast Spray, Overhead Sprinkler Irrigation
Product Drawbacks While low when used as directed, phytotoxicity (plant damage) can still occur, especially on sensitive plants or in high temperatures or humidity.
Active Ingredient Copper Sulfate Pentahydrate 21.27%
Application Equipment Backpack Sprayer, Chemigation System, Pump Sprayer, Spray Rig
Mix Rate For annual and perennial bedding plants, apply 10 to 45 fl. oz. of Phyton 35 Bactericide and Fungicide per 100 gallons of water. For tropical foliage, use 13 to 50 fl. oz. of product per 100 gallons of water.
Use Sites Outdoors
Yield Coverage will vary.
EPA Registration No. 49538-5
Shelf Life Phyton 35 Bactericide and Fungicide will last for 3 years when stored in a dry, clean area.
Comparable Products Liqui Cop Copper Fungicide
Children or pets? No
Property Characteristics None

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