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Monterey Garden Phos Systemic Fungicide previously known as Agri-Fos Systemic Fungicide is very effective in controlling plant diseases such as Pythophthora, downy mildew, pythium, black spot, root rot, anthracnose, and more. It contains mono- and di-potassium salts of phosphorous acid and it functions as both a curative and preventive treatment to plants. It may be applied as a foliar spray, soil drench, by soil incorporation, through basal bark treatment and as a bare root dip. It can be used in trees, turf, ornamentals, in landscapes and interiorscapes, and bedding plants.
UPDATE: Product has a new name but it is the same exact product.
This product may not be used in New York for tree injection.
Product Documents
| Active Ingredient | Mono- and di- potassium salts of phosphorous acid 45.8% |
|---|---|
| Target pests |
Black Spot, Root Rot, Collar Rot, Fire Blight, Crown Rot, Trunk Cankers, Downy Mildew, Bud Rot, Phytophthora Root, Foliar Rot, Anthracnose, Bacterial Blight, Pythium spp diseases, General Tree Decline Syndromes and more * See label for complete list |
| For use in |
Citrus, Fruits, Nuts, Vegetables, Bedding Plants, Landscaping, Ornamental, Conifers, Turf * See label for complete list |
| Application |
1 tsp - 2 oz. per gallon of water - Foliar spray, Soil Drench, Soil Incorporation, Basal Bark application and Bare Root Dip * See label for complete application instructions |
| Pet safe | Yes, when used directed on label |
| Shipping Weight | 1.56 lbs |
| Manufacturer | Monterey Lawn & Garden (Mfg. Number: LG 3334) |
| UPC | 022179104549 |
| EPA Registration | 83416-1-54705 |
GENERAL APPLICATION INSTRUCTIONS
For foliar sprays, apply AGRI-FOS Systemic Fungicide with sufficient water volumes for adequate coverage of foliage, according to plant type and growth stage. To ensure good coverage, spray to wetness, but avoid run-off.
When applying AGRI-FOS Systemic Fungicide to plant species for the first time, spray a limited number of plants first and wait for 3-7 days. Then check for leaf burn (phytotoxicity).
MIXING INSTRUCTIONS
LANDSCAPE APPLICATIONS
Use AGRI-FOS Systemic Fungicide for effective control of Phytophthora and Pythium spp. and other diseases associated with Sudden Oak Death, Beech Decline, and general tree decline syndromes. Apply AGRI-FOS Systemic Fungicide to trees such as, but not limited to, Beech, Cedar, Chestnut, Crab Apple, Dogwood, Elm, Fir, Juniper, Linden, Pine, Oaks (Coastal, Live, Shreve, Black, Canyon), Ornamental Pear, Sweet Birch, Sweet Gum, Sycamore, White Pine, White Cedar, and Willow.
Make applications before disease development and in conjunction with good cultural management practices. Use higher rate of application when disease pressure is severe. Do not exceed indicated application rates or apply more frequently than stated on label or tree injury may occur. Do not apply to trees that are heat or moisture stressed. Do not apply to trees that are in a state of dormancy. Do not exceed indicated spray intervals or label rates in order to avoid tree injury.
ORNAMENTAL APPLICATIONS
Use AGRI-FOS Systemic Fungicide for effective control of Bacterial blight, Downy mildew, Phytophthora spp. and Pythium spp. diseases, and Sudden Oak Death of ORNAMENTALS in landscapes and interiorscapes. Apply AGRI-FOS Systemic Fungicide to plants such as, but not limited to, Aglaonema, Anthurium, Aphelandra, Arborvitae, Azaleas, Bougainvillea, Boxwood, Cattelya skinneri, Ceanothus, Cotoneaster, Cissus, Diffenbachia, English ivy, Eucalyptus, Ficus, Hibiscus, Japanese andromeda, Japanese Holly, Leather leaf Fern, Peperomia, Photinia, Pittosporum, Philodendron, Pieris, Pothos, Rhododendron, Roses (container, landscape, mini varieties), Schefflera, Sedum, Sempervivum, Syngonium, Spathiphyllum, Taxus media, and Zygocactus.
Make applications before disease development and in conjunction with good cultural management practices. Use higher rate of application when disease pressure is severe. Do not exceed indicated application rates or apply more frequently than stated on label in order to avoid plant injury. Do not apply to plants that are heat or moisture stressed. Do not apply to plants that are in a state of dormancy. When applying to indoor plants do not overspray and use care to apply only to target plants. If meeting these conditions is not possible, remove plants to an outdoor location for treatment and drying before bring back indoors.
BEDDING PLANTS
Use AGRI-FOS Systemic Fungicide for effective control of Downy mildew, Phytophthora spp. and Pythium spp. diseases of BEDDING PLANTS outdoors and in interiorscapes. Apply AGRI-FOS Systemic Fungicide to plants such as, but not limited to, Ageratum, Algerian Ivy, Anthurium, Artemesia, Aster, Begonia, Baby’s Breath, Caladium, Carnation, Chrysanthemum, Columbine, Coleus, Daisy, Delphinium, Easter Lily, English Ivy, Foxglove, Gaillardia, Geranium, Gloxinia, Impatiens, Lavender, Marigold, Petunia, Pansy, Phlox, Pinks, Poinsettia, Primrose, Prostrate Rosemary, Salvia, Snapdragon, Vinca, Verbena, and Zinnia.
Make applications to outdoor or indoor plants before disease development and in conjunction with good cultural management practices. Use higher rate of application when disease pressure is severe. Do not exceed indicated application rates or apply more frequently than stated on label in order to avoid plant injury. Do not apply to plants that are heat or moisture stressed. When applying to indoor plants do not overspray and use care to apply only to target plants. If meeting these conditions is not possible, remove plants to an outdoor location for treatment and drying before bringing back indoors.
(Read label for complete list, usage rates, various application directions and restrictions.)
It is really works
By Maria on 06/27/2016
I have a problem with ceder rust on my apple trees, bacterial leaf spot disease on my cherry and peach trees. My trees were severely affected! After first application all symptoms were stopped, but in two weeks symptoms have returned on remain foliage, so I had to make another application. In two more weeks all my trees showed up more new healthy growth and today, on the middle of summer, all my trees are absolutely healthy and, it seems, happy! I should use this product in early spring, and I'm definitely going to do it next year.
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31 of 31 people found this review helpful
Agri-fos for pansy and snapdragon rot
By Larry on 12/18/2012
Verified Purchase
We plant a lot of pansies and snapdragons in the fall. Stem rot and root rot can be a problem at times, especially in overly wet soils caused by long stretches of rainy weather or if the sprinklers are over watering. Treatment with this systemic product has given us 100% positive results in a test treatment of 20 flats of annuals planted in several different soils and locations. It worked as both a preventative and a curative in some flowers that had disease prior to treatment. This stuff looks like a keeper.
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21 of 22 people found this review helpful
Great Product, Great Price, Super-fast Free Shipping
By J. on 09/10/2014
Monterey Agri-Fos Systemic Fungicide
By Pat on 03/05/2013
Verified Purchase
No opinion yet
By Anonymous on 05/31/2013
I am giving this product the benefit of doubt since I can't prove its performance yet. It will take a couple of months though when it gets really hot in the summer in Mississipp. My italian cypress trees have a fungus and I read where this product and Cleary 3336f will heal it. I am still waiting to see the results.
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7 of 31 people found this review helpful
Or is there any product to help on this? The tree is six years old.
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2 of 4 people found this answer helpful
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57 of 59 people found this answer helpful
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46 of 64 people found this answer helpful
Is this mixture to strong for the Mums ?
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12 of 12 people found this answer helpful
Used the proper dosage to help an oak tree recover/fight off a fungal infection. How long to see new growth of canopy?
I have lost a couple of fruit trees in the past and I think I have a couple more to start the same symptoms. The ones that act sick also have a little fire blight. Will this product help me?
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27 of 27 people found this answer helpful
I have tried most antifungals known to man, even surgical removal. So will systemic antifungals help?
We would recommend you contact your local county cooperative extension office and speak with a Master Gardener. Since you are unsure of the specific type of fungi and have been unsuccessful with other fungicides we would be very apprehensive making a product recommendation. You may click the link below and follow the instructions to locate your local cooperative extension office for further recommendation.
http://www.csrees.usda.gov/Extension/
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1 of 4 people found this answer helpful
I understand Agrifos is a phosphorus acid derived from potassium, basically super hydrogen peroxide H3PO2or 3 or 4, with possibly a K attached, but how is this affecting the fungi?? Is the product actually oxygenating the fungi as a normal peroxide would, and if so why does it require such small amounts??
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0 of 2 people found this answer helpful
On the Paul Parent Garden Club radio show, he promotes soaking tomato plant seedlings in a solution of agri-foe to give them a head-start against disease, then treating with a similar solution, but in both spray and root application every two weeks or so. What's your take?
No, Monterey Agri-Fos Systemic Fungicide is not specifically labeled for pine needle blight.
We would recommend using Honor Guard PPZ Fungicide. It is a general fungicide that is labeled for conifer blights. You will mix 2-4 fl. oz. in 100 gallons of water and apply every 14-21 while the disease is present.
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1 of 3 people found this answer helpful
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21 of 23 people found this answer helpful
I have 14 leyland cypress trees that became infected last year with seridium cankor. A tree expert examined my trees. The trees are 25 ft. tall. Thanks for the help.
Multiple university studies show that there are no current known fungicide treatments that are effective for controlling seridium canker in Leyland Cypress. Rather, good cultural practices and planting disease-resistant plants are recommended. Leyland Cypress have a shallow root system, so they will be more susceptible to disease when under drought stress. It is also important to prune any infected branches and to sanitize pruning tools after use. Here is more information from the Kent State Cooperative Extension about Leyland Cypress in your area.
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6 of 9 people found this answer helpful
We would recommend using Monterrey Agri-Fos Systemic Fungicide. The dilution rate is two teaspoons per gallon of water. You will spray the tree every 14 days during the blossom period, then monthly until harvest. You will spray to the point of runoff.
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36 of 42 people found this answer helpful
The potted plumerias are in big pots making it impossible to move and are closed to hibiscus on the ground that is why I cannot spray them.
Monterey Agri-Fos Systemic Fungicide is not actually labeled to treat for rust. A better option would be the Bonide Neem Oil RTU or Concentrate.
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4 of 5 people found this answer helpful
Monterey Agri-Fos Systemic Fungicide will be viable for about 3 years if stored out of sunlight and in a temperate environment.
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45 of 46 people found this answer helpful
Monterey Garden Phos Systemic Fungicide
Rating: 4.5 (25 Reviews / 87 Q&A)
