Product Overview

Pipron Fungicide is another industry standard fungicide offered by SePRO. Pipron provides second-to-none curative powdery mildew control. As a highly effective contact fungicide, Pipron acts quickly to eradicate existing powdery mildew infections, leaving no visual residue. Pipron has been a utilized effectively for over 20 years with no evidence of resistance. For best results thoroughly apply Pipron to areas of new growth and areas already infected with powdery mildew.

Unsurpassed curative Powdery Mildew control
A true eradicant even for the worst outbreaks
Excellent crop safety
Can be applied to tender plants and blooms
No residue
Allows the radiant colors of flowers to persist
Pipron Quick Facts
Use Sites
Pests Controlled
Powdery Mildew
Recommended Rate
4 - 8 fl. oz. per 100 gallons
Restricted-Entry Interval (REI)
12 hours
Active Ingredient
Mode of Action (Chemical Group)
Sterol biosynthesis in membranes (5)

Pipron Against Powdery Mildew


Labels and SDS

Specimen Label

Safety Data Sheet

Registered States

Managing Powdery Mildew

It's as common on your plants as the soil around them. Powdery mildew. If conditions are right, it can go from one leaf to an epidemic in three or four days. It's always there, waiting for you to ignore it. Waiting to eat into your plants and profits. To keep that from happening, you must continually employ integrated disease control procedures against the spread and development of powdery mildew.

We hope to give you all the information you need to do just that.

Watching for conditions and telltale signs.

The first sign of powdery mildew is very hard to detect: Yellow spotting on leaves or tiny blistering on the leaves or flowers, caused by yet unseen lesions forming rapidly. Left unchecked, white lesions start appearing all over the leaves, stems or flowers. Spores by the hundreds are produced on the white mycelium (the thread-like body of the fungus) growing over the tissue, giving the disease the look of white powder.

Ideal conditions for infection:

  • When greenhouse temperatures range from 65° to 75°F, and leaves become dampened by condensation (dew) at the end of the day.
  • High relative humidity, crowded conditions and poor air circulation also help speed the development of this disease.

Taking control of the greenhouse environment.

Any control measures you take should be aimed directly at the prevention of powdery mildew development. For starters, you have to control what foes on in yours plants' environment, especially the greenhouse. First and foremost, you must stop condensation from forming on plant leaves at the end of the day.

Here's how.

Cultural practices to help prevent powdery mildew in the greenhouse:

  1. Keep low velocity air moving over and through the foliage, especially at then end of the day.
  2. If the relative humidity exceeds 90 percent, add some heat to the greenhouse as soon as possible, regardless of the outside temperature.
  3. After the temperature inside the greenhouse begins to rise, ventilate for a few minutes to exhaust this warm, moisture-laden air and stop heating as you continue to cool the greenhouse for the night.
  4. Repeating this dehumidification cycle two or three times at nightfall will go a long way toward preventing condensation-and the start of powdery mildew.

Experts in Ornamental & Nursery Solutions

SePRO provides high-quality solutions for insect and disease control, as well as plant growth regulation to help you bring healthy, sellable plants and produce to your customers. See how we can help.