Fungicide Buyers’ Guide

Published online: Feb 26, 2018 Fungicide, New Products
Viewed 4552 time(s)

This buyers' guide appears in the March 2018 issue of Potato Grower.

Black dot. Late blight. Fusarium wilt. Ugly names attached to truly ugly diseases with the potential to completely wreck an entire potato crop.

Over the years, growers, researchers and chemical reps have worked tirelessly to develop sustainable, economical solutions to the problems posed by these fungal maladies. Potato Grower’s fungicide buyers’ guide showcases a few of those solutions.

Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties. Please check with your state or local extension service to ensure registration status.

(973) 245-6000


Endura fungicide is an effective and reliable product that provides potato growers with superior control of a wide variety of diseases that can impact their crop. Its active ingredient, boscalid, offers growers a unique mode of action. When applied prior to infection, generally around the time of row closure, Endura fungicide provides control of white mold and Alternaria diseases, such as brown spot and early blight.

The preventive fungicide works by inhibiting new growth of fungal cells while blocking the energy production in existing cells. Its site of action is different from strobulirins and most other fungicides, making it effective in fungicide resistance management rotations.


Bayer CropScience

(866) 99-BAYER


From sprout to harvest, Luna fungicide protects potatoes throughout the growing season, improving plant health for beautiful crops and abundant potato yields. As a breakthrough systemic fungicide, Luna provides unparalleled control of white mold, early blight, black dot and other problematic diseases. With Luna as a cornerstone of their fungicide programs, growers can consistently produce a high-quality crop—and more of it.


BioSafe Systems

(888) 273-3088

OxiDate 2.0 Bactericide/Fungicide

BioSafe Systems’ OxiDate 2.0 controls a wide variety of pathogens that can affect the healthy growth of potatoes, including early and late blight, powdery mildew, potato brown rot, bacterial speck and spot, and white mold.

OxiDate 2.0 has a zero-hour re-entry interval and no pre-harvest interval. It kills bacterial and fungal pathogens on contact and has no mutation resistance.


Marrone Bio Innovations

(877) 664-4476

Amplitude Biofungicide

PIC: Amplitude_logo

Amplitude biofungicide has been approved for control of white mold on numerous row crops like beans, peas and other pulse crops, as well as bringing a new great solution for white mold control in potatoes. Additionally, it provides excellent control of Rhizoctonia and Pythium when soil-applied at planting for crops such as carrots and onions.

Amplitude is an advanced biofungicide that offers growers a sustainable mode of action to help control tough diseases and minimize the development of resistance. Amplitude is a liquid biofungicide and will initially be available in 2.5-gallon containers and soon after in larger containers. Growers can contact their local crop protection suppliers for availability information.

Nichino America, Inc.

(888) 740-7700              

Moncut SC

Moncut SC is a liquid formulation fungicide that provides reliable, effective control of soil-borne potato diseases with extended residual activity. The active ingredient in Moncut SC, flutolanil, protects both the seed piece and tuber set. Moncut SC is a curative and preventative treatment, stopping disease progress and preventing future infections. The systemic activity of Moncut SC delivers protection to the entire plant and developing root systems. Moncut SC is an excellent fit in resistance management programs.



(541) 607-5097


Sym-Agro has commercially launched Prevont fungicide/bactericide, for use on tree fruit, grapes, fruiting vegetables, potatoes, cucurbits, melons and berries. Prevont is highly effective against fungal and bacterial diseases.

Prevont contains a highly active, patented strain of Bacillus subtilis, which is 400 times more active than competing products. It uses multiple non-toxic modes of action to control and suppress diseases. Prevont triggers a response from the plant, prompting it to defend itself against pathogens, and it prevents infection from pathogens through competitive exclusion. This multiple-site mode of action not only creates an effective fungicide, but also makes it very difficult for diseases to develop resistance. With a four-hour re-entry interval and zero-day pre-harvest interval, Prevont is an excellent tool for late-season disease problems, right up to and including the day of harvest.



(866) 796-4368

Orondis Opti

Orondis Opti fungicide combines two powerful active ingredients with systemic and contact protection to aid potato growers in hitting an out-of-the-park home run against late blight. Orondis Opti protects crops when they are most actively growing to maximize marketable yields.

Orondis Gold

Orondis Gold fungicide combines the proven, trusted performance of two active ingredients to deliver preventive, residual and systemic activity against pink rot and Pythium leak. Orondis Gold is particularly effective in soil-borne oomycete disease control.

Orondis Gold is a combination of separately registered products: Orondis Gold 200 and Orondis Gold B.


Elatus fungicide has been shown to provide excellent control of soil-borne Rhizoctonia in potatoes, and can now be used under a 2ee recommendation to aid growers in the fight against Verticillium wilt. The disease control offered by Elatus can help improve emergence, establish a more uniform crop stand, enhance crop health, and optimize distribution of tuber size, ultimately resulting in higher yields and optimal quality at harvest.


Vive Crop Protection

(416) 341-8889

AZteroid FC

In 2017 trials, an application of AZteroid FC fungicide with starter fertilizer increased potato yield by 24 hundredweight per acre compared to fertilizer alone.

Until recently, mixing fungicide with starter fertilizer was simply not done because the two products weren’t compatible, leading to “cottage cheese” in the application tank and clogged nozzles. The use of nanotechnology from Vive Crop Protection makes AZteroid FC (azoxystrobin) the first fungicide to mix easily and stay in suspension for days instead of minutes or hours, helping growers who may experience delays due to weather or other circumstances. AZteroid FC contains the same active ingredient as Quadris fungicide, but the nanotechnology “shuttle” that carries the active ingredient keeps it in suspension until it reaches the soil, where the fungicide is released. AZteroid FC controls black dot, silver scurf and black scurf in potatoes.

This delivery system is also available in Vive’s Bifender FC insecticide (bifenthrin), enabling potato growers to control in-ground pests like rootworms and wireworms in the same pass as planting and starter fertilizer.




Sonata fungicide from Wilbur-Ellis helps protect potato plants against early. Based on a patented strain of Bacillus pumilus, Sonata is an excellent fit for integrated disease management programs.