ABOUT PHYSAN 20

Physan 20 is a powerful multi-purpose Fungicide concentate that can be used to treat and stop a wide variety of plant diseases and pathogens on plants, surfaces and waterways. Unlike other contact fungicides, Physan 20 can be used to suppress a disease even after it has infected the plant.

 

TECHNICAL INFORMATION :

Download Physan 20 MSDS here

Download Physan 20 Technical Data here

 

 

PLANT USAGE GUIDE :

Download Plant Guide PDF here    

Download Physan 20 Imperial Measurements Product Booklet here

Download Physan 20 Metric Measurements Product Booklet here

 

Disinfection and Algae Control in the Greenhouse with Physan 20 : 

Prevention of the establishment of plant pathogens in the greenhouse is a critical component for any plant enthusiast or professional grower.

Industry has concentrated research and investment in developing chemical and
biological treatments for plants infected with a variety of pathogens. However, growers and production managers should not underestimate the value of simple disinfection in preventing the development and movement of pathogens throughout the greenhouse.

Regular usage of disinfectants labeled for use in the greenhouse can control bacteria, viruses,fungi, and algae, which, if established, can devastate greenhouse crops, or provide food for insect pests (algae for fungus gnats).

There are many disinfecting products on the market today which are used in the
greenhouse. Care should be taken when using disinfectants to ensure that the product selected has : 

  • A - is an EPA approved product labeled for use as a greenhouse disinfectant
  • B - is effective against a multitude of plant pathogens and algae
  • C - is EPA approved for use on plants as well as hard surfaces
  • D - has some residual effectiveness over time

Using PHYSAN 20 on your plants : 

Physan 20 can be used directly on your plants. It can be applied as a preventative maintenance foliar spray, and as a treatment for many rot and fungal diseases.

As a maintenance foliar spray, Physan 20 will prevent Botrytis, black leaf spot, powdery mildew, Rusts, Blights and Rot (such as Erwinia).

For the orchid enthusiast, Physan 20 can be used to treat and cure Rot upsets such as Crown Rot and Root rot. This can be done by dunking the plant in a Physan 20 solution for 5 mins, removing / cutting off the infected areas and proceed to repot the plant immediately.

There are so many uses for Physan 20 you must check the handy instruction booklet to see the different plants and ways in which it can be used. DOWNLOAD HERE This booklet contains the instructions and concentration ratios you will need for the safe and effective use of Physan 20.

 

PHYSAN 20 as a Disinfectant on Surfaces : 

PHYSAN 20 is a liquid concentrate product that mixes with water to create a multipurpose disinfecting solution.

PHYSAN 20 is labeled by the EPA for use on inanimate hard surfaces to control a wide range of bacteria, fungi, and viruses.The product is particularly useful to disinfect cutting tools; control mold and mildew on surfaces such as floors, walls, tabletops, and glass; disinfect work areas and benches; disinfect pots, flats and flower buckets. Dilution rates for these applications are as follows:

 

 APPLICATION

 DILUTION RATE

Disinfect Cutting Tools 4 teaspoons of Physan20 per 3.7 Litres of water
Mold/Mildew Control on Surfaces 1 1/2 Tablespoons of Physan20 per 3.7 Litres of water
Disinfect Work Areas and Benches 1 Tablespoon of Physan20 per 3.7 Litres of water
Disinfect Pots/Flats/Flower Buckets 1 Tablespoon of Physan20 per 3.7 Litres of water

Download Physan 20 Imperial Measurements Product Booklet here

Download Physan 20 Metric Measurements Product Booklet here

 

PHYSAN 20 as an Algaecide :

Algae is often present in greenhouses due to the moist and humid environment. Algae growth presents many problems, including unsightly growth on soil surfaces; growth on floors and walkways which present a safety hazard; growth which encourages the presence of fungus gnats.

Algae can also impede the function of evaporative cooling equipment. Slime-forming fungus, mold and algae in evaporative coolers can cause odor and accelerate the spread of pathogens throughout the greenhouse. Minimizing the presence of algae has many benefits and should be a critical part of a total disinfecting program. Physan 20 is safe to use with fragile evaporative cooling pads.

 

 APPLICATION

DILUTION RATE

Algae Control on Walkways 1 Tablespoon of Physan20 per 3.7 Litres of water
Algae Control on Glass 1 Tablespoon of Physan20 per 3.7 Litres of water
Evaporative Coolers 1 teaspoon of Physan20 per 56.7 Litres of water

Physan 20 to Control Algae on Soil Surfaces (Soil Drench):

A particular challenge for growers is preventing and treating algae on the surface of soil in the presence of plants. Many algaecides are not labeled for use on plants. PHYSAN 20 is labeled for this use. It is also can be used as a soil drench and has excellent wetting properties.

 

 APPLICATION

DILUTION RATE

Soil drench (With Plants/seeds in soil) 1 1/2 teaspoons of Physan20 per 3.7 Litres of water
Soil drench (Without plants or soil) 1 Tablespoon of Physan20 per 3.7 Litres of water
Algae control on soil 1 1/2 teaspoons of Physan20 per 3.7 Litres of water

Download Physan 20 Imperial Measurements Product Booklet here

Download Physan 20 Metric Measurements Product Booklet here

 

Physan 20 vs. Chlorine Bleach as a Disinfectant :

Many growers recognize the importance of disinfection in the greenhouse. However, many mistakenly believe that chlorine bleach is a cheaper alternative that provides quality disinfecting capabilities. This is not so.

Chlorine bleach is not labeled for use as a greenhouse disinfectant by the EPA on a state or federal level. Its use as such can result in citations and or fines upon inspection.

Bleach rapidly evaporates when prepared in solution. The half-life of a .5% solution of bleach and water is only 2 hours. Thusthe prepared solution must be applied immediately after mixing to be effective. In addition, a contact time of 30 minutes is required for disinfection.

PHYSAN 20 has residual germicidal activity, which means it remains effective for a period of time, particularly on hard surfaces. The solution itself remains active and can be used over time. Its effectiveness can be checked with Physan 20 Test Strips to ensure it remains active. In addition, a 10 minute contact time is all that is required to disinfect.

The use of a solution stronger than 5% can cause damage to plastics and metal. In addition, bleach presents a risk to employees who inhale the fumes or splash the product on clothing.

The diluted PHYSAN 20 solution is safe enough to dip ones hands in. It is not a primary eye or skin irritant, and if splashed on clothes will not harm them. The solution is pleasant smelling and requires no special ventilation to use.

 

Download Physan 20 Imperial Measurements Product Booklet here

Download Physan 20 Metric Measurements Product Booklet here