Page 24 - Grapevine March-April 2020
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Around The Vineyard
sue inside dormant buds known as bud perenna- combine chemical, biological, cultural and other
tion,” they said. “Additionally, this fungus has been control methods to manage grapevine pests,” Dr.
shown to have developed resistance to some com- O’Neal said. “All products in the MBI portfolio can
monly used fungicides.” be rotated or combined with chemicals. The lat-
ter approach is the foundation of MBI’s BioUnite
Control Methods for Vineyard Insects approach, which provides growers with IPM pro-
grams that harness the power of biology with the
Modern vineyards have a wide selection of chem- performance of chemistry, resulting in a more
ical means at their disposal to control pests and efficient food production system that is affordable,
keep plants as healthy as possible. For fungicides, sustainable, safe and easy to use.”
it often takes a mixture of a couple different prod-
ucts for broad-spectrum control of multiple dis- “Regalia Biofungicide is used early for disease
eases. Yet it is often too late to wait until a fungus prevention and overall plant health and through
appears to apply fungicide. Insecticides in the form the season for continued disease control,” said
of cover sprays are popular among vineyards that Dr. O’Neal. “Stargus Biofungicide is an advanced
like the convenience of an air blast sprayer and SAR and ISR biofungicide targeting key diseases of
option to mix fungicides in the tank when desired. grapes. Increases in yield have been observed when
either Regalia or Stargus are included in grape dis-
Ryann Greenleaf of A1 Mist Sprayers, an appli- ease management programs.”
cation equipment company based in Ponca,
Nebraska, told The Grapevine how these mist Dr. O’Neal said, “Grandevo contains several active
sprayers are great for coverage efficiency because compounds that repel, stop feeding, reduce repro-
they deposit the droplets of whatever product is duction and induce mortality to prevent the devel-
applied to the underside of the leaf. Meanwhile, opment of damaging populations of sucking and
most other machines strictly apply product to the chewing insects, flies and mites. Venerate XC is a
top of the foliage. broad-spectrum, in-season insecticide with a simi-
larly broad label. Finally, Haven is an abiotic stress
“A1 Mist Sprayers are also a more cost-effective manager that helps crops dissipate excess heat and
piece of equipment and can be used for fungicides, moderates solar radiation, preventing heat and sun
insecticides and foliar fertilization applications.” damage while increasing photosynthesis, as well as
Greenleaf said. marketable yield.”
“The 3PT Terminator is our most recommended
product for a vineyard because of the applied cov- To best combat fungal diseases and manage
erage of a product, it is the best ‘bang for your development of fungicide resistance, Vadon and
buck’ and it has additional attachments that can Clark of BioSafe Systems recommend preventative
be purchased that have been designed specifical- actions, such as dormant applications and contin-
ly with a vineyard situation in mind, such as the ued measures throughout the growing season to
2-Way Orchard/Vineyard Volute and the 11-Nozzle protect plant tissue by reducing spores and inhibit-
Vertical Volute,” Greenleaf said. “Our next recom- ing fungal development.
mended product is the Boss mist sprayer. This is a
smaller, more compact and price efficient model “The use of fungicidal products, like OxiDate 5.0
that is ideal for smaller operations and also has a and PerCarb, play a key role in reducing disease
Vertical Volute option.” pressure by eliminating fungus and their spores,”
said Vadon and Clark. “Sound cultural practices
Control Methods for Vineyard Diseases interwoven with quality fungicide applications that
utilize rotating modes of action, plus low to no
To control vineyard diseases, Dr. Melissa J. O’Neal, resistance potential, are very important to sound
the product development manager for the Western vineyard disease management practices that pro-
United States for Marrone Bio Innovations (MBI), tect the health of the vine, improve quality of the
recommends using preventative sprays to strength- grapes and advance the sustainability of the vine-
en the plant’s immunity. yard.”
“Integrated pest management (IPM) programs Vadon and Clark shared that recent results from a
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