Page 8 - Griffin Gazette Winter 2016

New Products
to Combat
Foliar Diseases

By Rick Yates,
GGSPro Technical Services Manager
New pesticides are always welcome, especially when they bring
new modes of action to the industry or bring relief to underserved
crops. Significant benefits are on the way this spring, in the form
of several new fungicides. Before we dig into the highlights, it’s
good to be reminded: Even the best fungicides will fail if we
don’t optimize the environment to suppress diseases. Manage
for success by monitoring and optimizing temperature, humidity,
irrigation practices, air movement, crop spacing and plant nutrition
to decrease disease risk. Add effective fungicides to that mix, and
you are well on your way to minimizing losses from foliar diseases.
With those cultural thoughts in mind, it’s time to throw open the
tool box and see what shiny new tools are inside.

Significant benefits are on the way Powdery mildew on gerbera
this spring, in the form of
several new fungicides.

Triathlon BA from OHP is a broad-spectrum biofungicide/ Xanthomonas, performing on par with copper bactericides in
bactericide based on Bacillus amyloliquefaciens strain D747, a some trials. It’s also labeled for several root rots, but GGSPro
naturally occurring bacterium. Like other biofungicides, Triathlon would like to see more data before we recommend Triathlon BA
BA is a preventative product that should be applied either before for drenches.
or at the first sign of disease. The list of foliar diseases that are Plant safety is excellent, including most open blooms. Triathlon BA
prevented with this product is impressive. A partial list includes can be used on ornamentals, vegetables and herbs in greenhouses,
Alternaria, Botrytis, downy mildew, powdery mildew, Rhizoctonia, shade houses and nurseries. It has a 4-hour REI, a 0-day PHI
rust and scab. (pre-harvest interval) and is OMRI-listed for organic growers.
In addition to fungal diseases, Triathlon BA has shown efficacy It can be sprayed or fogged. The addition of CapSil (surfactant)
against bacterial leaf spots, such as Pseudomonas and is recommended for spray solutions to improve coverage and
control. The label lists a wide range of rates, but OHP says that
New Fungicides for 2016 two quarts per 100 gallons is sufficient for most uses. This rate
At A Glance: makes Triathlon BA very economical. Last but not least, it can be
tank mixed with many other pesticides, including fungicides with
Triathlon BA contact action, to pair a knockdown with the preventative action
Active ingredient: Bacillis amyloliquefaciens strain D747 of Triathlon BA.
Manufacturer: OHP Emblem from Nufarm doesn’t contain a new active ingredient,
Emblem but it does boast a convenient SC (soluble concentrate)
Active ingredient: fludioxonil formulation and the welcome additions of certain vegetables
Manufacturer: Nufarm and an impressive list of herbs to the label. Fludioxonil has a
Mural well-deserved reputation as a powerful contact fungicide with
Active ingredients: azoxystrobin, solatenol residual activity against a wide range of important diseases.
Manufacturer: Syngenta As a full coverage foliar spray, Emblem controls Alternaria,
Botrytis, Cercospora, Myrothecium, Rhizoctonia, rust, scab and
Septoria. Drench treatments control Cylindrocladium, Fusarium,
Rhizocotonia, Sclerotium and Thielaviopsis. Emblem can be
tank mixed with several Pythium and Phytophthora fungicides to
expand the spectrum of disease control.

8 Griffin Gazette winter 2016