Midwest Vegetable Guide - 2022 - 183

Leafy Vegetables and Herbs (Non-Brassica) - Diseases
Pesticide
Botran 75W (dichloro-nitroaniline) Endive, Head Lettuce,
Leaf Lettuce | Rate depends on crop and application method.
Flowable formulations may be available. REI: 12-hour. PHI:
14-day. FRAC 14.
Endura (WG) (boscalid) Head Lettuce, Leaf Lettuce | 8-11
oz. per acre. Suppresses Bottom Rot. REI: 12-hour. PHI: 14day.
FRAC 07.
Fontelis (1.67SC) (penthiopyrad) Basil, Chicory, Chive,
Cilantro, Coriander, Cress, Dill, Endive, Escarole, Fennel,
Florence Fennel, Head Lettuce, Lavender, Leaf Lettuce,
Marjoram, Oregano, Parsley, Radicchio, Rosemary, Sage,
Savory, Spinach, Swiss Chard, Tarragon, Thyme | 14-24 fl.
oz. per acre. REI: 12-hour. PHI: 3-day. FRAC 07.
iprodione products (iprodione) Head Lettuce, Leaf Lettuce |
1.5-2 pts. per acre. Formulations of iprodione include Nevado
and Rovral. REI: 24-hour. PHI: 14-day. FRAC 02.
Switch 62.5WG (cyprodinil, fludioxonil) Arugula, Basil,
Chicory, Chive, Cilantro, Coriander, Cress, Dill, Endive,
Escarole, Fennel, Florence Fennel, Head Lettuce, Lavender,
Leaf Lettuce, Marjoram, Oregano, Parsley, Radicchio,
Rosemary, Sage, Savory, Spinach, Swiss Chard, Tarragon,
Thyme | 11-14 oz. per acre. Powdery mildew suppression
only. REI: 12-hour. PHI: 0-day. FRAC 09, FRAC 12.
Nematodes
Non-Pesticide
Head Lettuce, Leaf Lettuce | Collect soil samples for
nematodes in the fall and avoid fields with high numbers.
Rotate to a non-broadleaf crop, such as grass grains or sweet
corn for >3 years. Prompt destruction of the finished crop
with tillage to rapidly breakdown tissue and displace
nematodes is an important method to prevent nematode buildup.
Anaerobic soil disinfestation (ASD) is an effective
sterilization method for greenhouse and high tunnel soils that
contain nematodes.
Powdery Mildew of Multiple Crops -
Erysiphe Fungus
Powdery mildew is more likely to be a problem in
greenhouse lettuce than in open fields.
Non-Pesticide
Arugula, Basil, Chicory, Cilantro, Coriander, Cress, Dill,
Endive, Escarole, Fennel, Florence Fennel, Head Lettuce,
Lavender, Leaf Lettuce, Marjoram, Oregano, Parsley,
Radicchio, Rosemary, Sage, Savory, Spinach, Swiss Chard,
Tarragon, Thyme | Rotate to non-host crops for 2 years. Use
raised beds and adequate plant spacing to improve drainage,
air flow. Monitor humidity in the hoophouse and vent
appropriately. Prompt destruction of the finished crop with
tillage to rapidly breakdown tissue is an important method to
prevent disease build-up.
Pesticide
Fontelis (1.67SC) (penthiopyrad) Basil, Chicory, Chive,
Cilantro, Coriander, Cress, Dill, Endive, Escarole, Fennel,
Florence Fennel, Head Lettuce, Lavender, Leaf Lettuce,
Marjoram, Oregano, Parsley, Radicchio, Rosemary, Sage,
Savory, Spinach, Swiss Chard, Tarragon, Thyme | 14-24 fl.
oz. per acre. REI: 12-hour. PHI: 3-day. FRAC 07.
Luna Sensation (fluopyram, trifloxystrobin) Arugula,
Chicory, Cress, Endive, Escarole, Head Lettuce, Leaf
Lettuce, Parsley, Radicchio, Spinach | 7.6 fl. oz. per acre. Can
be applied as a band over lettuce. REI: 12-hour. PHI: 0-day.
FRAC 07, FRAC 11.
Merivon (fluxapyroxad, pyraclostrobin) Basil, Cilantro,
Coriander, Dill, Fennel, Florence Fennel, Marjoram,
Oregano, Parsley, Rosemary, Sage, Savory, Thyme | 4-11 fl.
oz. per acre. REI: 12-hour. PHI: 1-day. FRAC 07, FRAC 11.
Procure 480SC (4) (triflumizole) Head Lettuce, Leaf
Lettuce | 6-8 fl. oz. per acre. REI: 12-hour. PHI: 0-day. FRAC
03.
Quintec (2.08) (quinoxyfen) Head Lettuce, Leaf Lettuce | 46
fl. oz. per acre. REI: 12-hour. PHI: 1-day. FRAC 13.
Switch 62.5WG (cyprodinil, fludioxonil) Arugula, Basil,
Chicory, Chive, Cilantro, Coriander, Cress, Dill, Endive,
Escarole, Fennel, Florence Fennel, Head Lettuce, Lavender,
Leaf Lettuce, Marjoram, Oregano, Parsley, Radicchio,
Rosemary, Sage, Savory, Spinach, Swiss Chard, Tarragon,
Thyme | 11-14 oz. per acre. Powdery mildew suppression
only. REI: 12-hour. PHI: 0-day. FRAC 09, FRAC 12.
Topguard EQ (SC) (flutriafol, azoxystrobin) Fennel,
Florence Fennel, Parsley | 6-8 fl. oz. per acre. REI: 12-hour
to 3-day. PHI: 7-day. FRAC 03, FRAC 11.
Viruses of Multiple Crops - Multiple
Pathogens
Lettuce Mosaic Virus (LMV) can be carried in infected seed
and is spread by aphids.
Non-Pesticide
Chicory, Endive, Escarole, Head Lettuce, Leaf Lettuce,
Radicchio | For LMV: use only mosaic-free indexed seed
Midwest Veg Guide 2022
183
Midwest Vegetable Guide - 2022

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