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StressPlant Protection - Control Products

The Ontario Seed Company has been committed to offering quality brand name plant protection products for many years. With a continued demand on applicators' to be environmentally responsible, we believe that research and technical support are the keys to ensuring that the right products are applied for individual situations. Please browse our complete line of plant protection products and contact one of our sales representatives for further technical assistance.





Class 11


    Ascernity Banner Maxx Banol Civitas & Harmonizer
  Compass 50 WG Daconil 2787 Dedicate Stressgard Disarm Exteris Stressgard
  Heritage Maxx Instrata Instrata II Jade Kabuto
  Medallion Mirage Stressgard Penthion PhostrolPro Polaro
  Posterity Primo Maxx Renovo Secure Segway

Signature XTRA Stressgard

(Aliette Signature)

Subdue Maxx



- Fungicides Control Products -


  New Ascernity™ fungicide delivers two proven and rotational chemistries in a pre-mix product that helps bridge the gap between simpler management and a diversified program 2 x 3.78 L

Ascernity Label


Ascernity Tech Sheet


Ascernity Safety Data Sheet

Banner Maxx


Banner Maxx provides fast and balanced systemic movement. It is the first choice broad spectrum fungicide for curative disease control.

2 x 3.78 L

Banner Maxx Label


Banner Maxx Safety Data Sheet



Banol turf fungicide delivers preventive and curative systemic protection against Pythium species associated with Blight and Dampening-off, with very low potential for resistance.

4 x 3.78 L

Banol Label


Banol Safety Data Sheet

Civitas & Harmonizer


Civitas is a two part system intended to be used with Civitas Harmonizer. Civitas treats disease and works to prevent diseases from taking hold in the first place with no known resistance risk. A unique Mode of Action in Civitas is Induced Systemic Resistance (ISR). Civitas helps turf become healthier and therefore less prone to stress. In addition, Civitas provides a barrier that helps prevent pathogens from accepting or using the host plant.


20 L



1.25 L

Civitas Label


Civitas Safety Data Sheet


Harmonizer Safety Data Sheet

Compass 50 WG


Compass fungicide is a broad-spectrum strobilurin fungicide that offers a revolutionary mesostemic mode of action delivering the highest efficacy at very low rates against turfgrass diseases, especially Brown Patch, Anthracnose, Leaf Spot, and Gray Leaf Spot.

4 x 454 g

Compass 50 WG Label


Compass 50 WG Safety Data Sheet

Daconil 2787


Daconil 2787 is a contact fungicide that targets multiple sites in the fungal pathogen.

2 x 10 L

Daconil 2787 Label


Daconil 2787 Safety Data Sheet

Dedicate Stressgard

  A powerful new fungicide that targets root and foliar diseases in the summer and snow mould in the winter. 2 x 5 L

Dedicate Stressgard Label


Dedicate Stressgard Tech Sheet


Dedicate Stressgard Safety Data Sheet


  Disarm is a group 11 fungicide containing Xylem-Pro Technology® specifically engineered to provide protection against many of the most destructive turf diseases. A broad spectrum strobilurin, DISARM delivers excellent results on major turf diseases including Anthracnose, Take-All patch, Snow Mould and even Dollar Spot!  4 x 1 L

Disarm Tech Sheet


Disarm Label


Disarm SDS

Exteris Stressgard


Exteris Stressgard is a new fungicide in the SDHI class of chemistry that is combined with trifloxystrobin to provide long-lasting, preventative and curative control of foliar turf diseases.

2 x 10 L

Exteris Stressgard Label


Exteris Stressgard Safety Data Sheet

Heritage Maxx


Heritage Maxx is the only systemic strobilurin translocated upward through the roots, crown, stems and leaves, protecting the entire plant. Heritage Maxx is effective against root-borne disease due to its ability to be taken up quickly by the roots and because of its systemic and curative properties.

2 x 3.78 L

Heritage Maxx Label


Heritage Maxx Safety Data Sheet



Instrata fungicide is the foremost product for protection against both Pink and Gray Snow Mould. Its combination of 3 active ingredients is uniquely capable of outperforming conventional snow mould products and tank mixes.

2 x 7.1 L

Instrata Label


Instrata Safety Data Sheet

Instrata II


Instrata II fungicide is an advanced formulation consisting of a combination of Instrata II A and Instrata II B. Instrata II is the foremost product for protection against Pink Snow Mould.

2 x (7.2 L + 0.9 L)

Instrata II Label


Instrata II Tech Sheet


Instrata II Safety Data Sheet


  Jade Turf Fungicide is non-conventional OMRI certified fungicide for use treating turf grass on golf course greens, tees, fairways & roughs, as well as sports & athletic fields.  20 L

Jade Label


Jade Tech Sheet


Jade Safety Data Sheet



Medallion is a broad-spectrum, contact fungicide that offers protection against several damaging diseases, including Fusarium Patch, Anthracnose, Leaf Spot, and Brown patch.

2 x 3.78 L

Medallion Label


Medallion Safety Data Sheet

Mirage Stressgard


Mirage Stressgard provides broad-spectrum control of important diseases like dollar spot, anthracnose, summer patch, fairy ring and snow moulds on fairways, tees, and greens. Tebuconazole powered by Stressgard Formulation Technology provides a great solution for tough diseases, while minimizing negative turf growth regulator effects that are seen with other DMI fungicides.

2 x 5 L

Mirage Stressgard Label


Mirage Stressgard Product Sheet


Mirage Stressgard Safety Data Sheet



SDHI technology with broad spectrum control. 

Penthion turf fungicide provides the broadest spectrum of control of any SDHI in the Canadian golf market. A distinctive SDHI that controls Anthracnose, Dollar spot, Brown patch and more.

4 x 5 L

Penthion Tech Sheet


Penthion Label


Penthion Safety Data Sheet


  PhostrolPro is an extremely systemic phosphite fungicide and unique Plant Defense Activator labelled for the control of anthracnose, Pythium blight and now Microdochium Patch. With both direct and indirect modes of action, phostrolPro provides an effective, convenient and flexible tool for the management of these diseases. Due to the mode of action on target fungi and the involvement of host defenses in disease suppression, PhostrolPro has a low resistance risk. 2 x 10 L

Phostrol Tech Sheet


Phostrol Label


Phostrol Safety Data Sheet


  Polaro A for control of Pink and Grey Snow Mould in turf suspension mixes with Polaro B for control of Snow Mould on turfgrass. 2 x (6.5 L + 1.4 L)

Polaro A Tech Sheet


Polaro B Tech Sheet


Polaro A Safety Data Sheet


Polaro B Safety Data Sheet


  Posterity is a next generation SDHI, FRAC Group 7, engineered for power and endurance. It’s labeled for all golf course turf and fits in agronomic solutions by providing up to 28 days of Dollar Spot and Microdochium Patch control. Posterity fungicide represents the latest advancement in SDHI technology offering disease protection in all growing seasons, holding strong under high pressure. 2 x 3.1 L

Posterity Tech Sheet


Posterity Label


Posterity Safety Data Sheet

Primo Maxx


The original and trusted turf growth regulator that pre-conditions for stress and optimizes surface quality and resources.

2 x 3.78 L

Primo Maxx Label


Primo Maxx Safety Data Sheet



Renovo, which contains the active ingredient thiophanate-methyl (TPM), provides preventative and curative control of some of the toughest turf diseases by utilizing a unique mode of action, not contained in any other fungicide in Canada. 

These unique characteristics make Renovo an ideal tool for disease resistance management.

2 x 10 L

Renovo Tech Sheet


Renovo Label


Renovo Safety Data Sheet


  Introducing Secure, a new multi-site contact fungicide for use in your disease management program. Secure is registered for the control of Dollar spot, Microdochium patch, Anthracnose and Brown patch. It contains a brand NEW active ingredient, fualinam, which belongs to FRAC (Fungicide Resistance Action Committee) group 29. 2 x 10 L

Secure Tech Sheet


Secure Label


Secure Safety Data Sheet


  Segway provides control of all Pythium diseases (Pythium blight, Pythium root dysfunction and Pythium damping off). This is the only FRAC Group 21 fungicide in Canada. The active ingredient, Cyazofamid, has low water solubility and good spreading capabilities on the plant surface. Great rotational or tankmix product. 6 x 1 L

Segway Tech Sheet


Segway Label


Segway Safety Data Sheet

Signature XTRA Stressgard


Signature XTRA Stressgard is a true systemic fungicide that enhances plant health and minimizes stress from both abiotic and biotic sources. Signature XTRA Stressgard uses a new, improved formulation of fosetyl-AL. Fosetyl-AL, the same active ingredient used in Chipco Aliette Signature, that has provided over 20 years of proven Pythium control and consistently high turf-quality ratings, along with no documented reports of resistance development in the field.

4 x 2.5 kg


Signature XTRA Stressgard Label


Signature XTRA Stressgard Safety Data Sheet

Subdue Maxx


Subdue Maxx systemic fungicide provides outstanding Pythium Control for all seasons.

4 x 1 L

Subdue Maxx Label


Subdue Maxx Safety Data Sheet


Click here for fungicide application rates and appropriate usage guidelines.


The following chart has been adapted from Bayer's Turf Products Guide. The full guide is available by clicking here.



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