Sample Simplified Home Grape Low-Spray
Schedule
Dr. John Strang, Dr. Patsy Wilson, Dr. Nicole
Ward & Dr. Ric Bessin University of Kentucky Extension Horticulture, Viticulture,
Plant Pathology, and Entomology Specialists respectively
2012
Recommendations based on ID-21. For organic options
refer to ID-21. This schedule should provide reasonable control in most
seasons, but is not a complete schedule to control every pest problem. It uses a minimal number of products.
Black Rot of Grape (Clemson) |
Dormant
Ø
Sulforix – Anthracnose
Bud Swell
Ø
Sevin – only if
flea beetles are noted eating holes in the buds
New Growth (2-4” long)
Ø
Mancozeb* +
myclobutanil - for black rot, Phomopsis cane and leaf spot, powdery mildew
& downy mildew
Ø
Myclobutanil (Immunox) is systemic and won’t wash off.
New Growth (10-15” long or
7-10 days after last spray)
Ø
Mancozeb +
myclobutanil for black rot, Phomopsis cane and leaf spot, powdery mildew and
downy mildew
Pre- bloom (Just before
blooms open)
Ø
Mancozeb +
myclobutanil - for black rot, Phomopsis cane and leaf spot, powdery mildew
& downy mildew
Bloom
Ø
Mancozeb +
myclobutanil - for black rot, powdery mildew & downy mildew
Post Bloom
Ø
Captan +
myclobutanil - for black rot, powdery mildew & downy mildew
Ø
Sevin – grape
berry moth control
Ø
Mix all of these in
the same spray tank
First, Second third and
forth cover sprays (every 10 to 14 days**)
Ø
Captan +
myclobutanil - for black rot, powdery mildew & downy mildew
Ø
Sevin – Spray for
Japanese beetles only when they are present.
Ø
Check label for
PHI and abide by this
*May substitute Captan for
Mancozeb throughout this spray schedule
**Spray schedule frequency
should be shortened in rainy weather and extended in dry weather. Early season sprays are very important
because this is a protectant spray program.
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