Midwest Vegetable Guide - 2022 - 150

Fruiting Vegetables - Diseases
transplanting in the field. For Pythium and Rhizoctonia spp.
use 12-18 oz. per 100 gals. water. Do not apply on seedlings
meant for transplanting in the field. REI: 12-hour. PHI: 0day.
FRAC 07, FRAC 11.
Priaxor (fluxapyroxad, pyraclostrobin) Eggplant, Pepper,
Tomato | 6-8 fl. oz. per acre. Late blight, 8 fl. oz. per acre.
Gray mold and white mold suppression only. REI: 12-hour.
PHI: 0-day. FRAC 07, FRAC 11.
Quadris Opti (SC) (azoxystrobin, chlorothalonil) Pepper,
Tomato | 1.6 pts. per acre. REI: 12-hour. PHI: 0-day. FRAC
11, FRAC M05.
Quadris Top (SC) (azoxystrobin, difenoconazole) Tomato |
8 fl. oz. per acre. REI: 12-hour. PHI: 0-day. FRAC 11, FRAC
03.
Quadris Top (SC) (azoxystrobin, difenoconazole) Tomato |
8-14 fl. oz. per acre. REI: 12-hour. FRAC 11, FRAC 03.
Regev (tea tree oil, difenoconazole) Eggplant, Pepper,
Tomato | 4-8.5 fl. oz. per acre. REI: 12-hour. PHI: 2-day.
IRAC UNE, FRAC 46, FRAC 03.
Revus Top (SC) (mandipropamid, difenoconazole) Tomato
| 5.5-7.0 fl. oz. per acre. Do not use on small-fruited varieties.
REI: 12-hour. PHI: 1-day. FRAC 40, FRAC 03.
Rhyme (2.08SC) (flutriafol) Pepper, Tomato | Rates for
pepper are 7 fl oz. per acre for anthracnose. Tomato rates are
5-7 fl.oz. for anthracnose and 3.5-7 fl oz. per acre for early
blight. REI: 12-hour. PHI: 0-day. FRAC 03.
Serenade Opti (26.2WP) (Bacillus subtilis strain QST713)
Eggplant, Pepper, Tomato | Use Serenade Opti at 14-20
fl. oz. per acre, or Serenade ASO at 2-4 qts. per acre. Can be
used in a rotational program with effective fungicides to
reduce synthetic fungicide use. REI: 4-hour. PHI: 0-day.
FRAC 44. OMRI-listed.
Tanos (DF) (famoxadone, cymoxanil) Pepper, Tomato |
Tomato: Early blight at 6-8 oz. per acre. Late blight and
anthracnose at 8 oz per acre. For suppression of bacterial
diseases of tomato, 8 oz. For late blight, tank-mix with a
contact fungicide with a different mode of action. Pepper:
Anthracnose at 8-10 fl. oz. REI: 12-hour. FRAC 11, FRAC
27.
Bacterial Canker of Fruiting Vegetables -
Clavibacter Bacteria
The bacterium becomes systemic in the plant, causing wilt
and leaf/fruit/stem lesions. It can occur on tomato and pepper,
but is mainly a problem on tomato.
Sanitize machinery, seedlings, and plant production materials
(transplant trays, greenhouse benches, and wooden stakes)
150
with a disinfectant such as 10% chlorine bleach or a
quaternary ammonium compound solution.
Inspect seedlings for disease and discard any flats containing
diseased seedlings as well as flats bordering any with
diseased seedlings.
Non-Pesticide
Pepper, Tomato | Use disease-free seed and transplants. Hot
water seed treatment may reduce this seedborne disease. Use
temperatures and times of 122 F for 25 minutes for eggplants
and tomato, and 125 for 30 minutes for pepper. Practice good
greenhouse sanitation of equipment, tools propagation
trays/pots, and surfaces. Avoid fields with a history of the
disease and rotate to non-Solanaceous crops for 3-4 years.
Stake and mulch the crops to improve air flow and reduce
splashing. Avoid working in wet fields. Prompt destruction of
the finished crop with tillage to rapidly breakdown tissue is
an important method to prevent disease build-up.
Pesticide
Tanos (DF) (famoxadone, cymoxanil) Pepper, Tomato |
Tomato: Early blight at 6-8 oz. per acre. Late blight and
anthracnose at 8 oz per acre. For suppression of bacterial
diseases of tomato, 8 oz. For late blight, tank-mix with a
contact fungicide with a different mode of action. Pepper:
Anthracnose at 8-10 fl. oz. REI: 12-hour. FRAC 11, FRAC
27.
Bacterial Speck of Fruiting Vegetables -
Pseudomonas Bacteria
Lesions of this disease can be found on leaves, stems, and
fruit of peppers and tomatoes. But, it is rarely a problem for
eggplants.
Sanitize machinery, seedlings, and plant production materials
(transplant trays, greenhouse benches, and wooden stakes)
with a disinfectant such as 10% chlorine bleach or a
quaternary ammonium compound solution.
While still in the greenhouse, scout and apply fixed copper
alternated with streptomycin (Agri-mycin, AG
Streptomycin). Once in the field, apply fixed copper product
tank-mixed with mancozeb on 7-10 day schedule, depending
on disease pressure, beginning within 1 week after
transplanting. Airblast sprayers with high fan speed can make
an outbreak worse by sandblasting plants with droplets and
opening many small wounds that become infected.
Copper Resistance: Strains of the bacterium that cause
bacterial speck on tomato and Pseudomonas leaf spot on
pepper that are resistant to copper products occur in the
Midwest. Actigard, streptomycin products (transplant
production in greenhouses only), mancozeb products, Tanos,
Midwest Veg Guide 2022
Midwest Vegetable Guide - 2022

Table of Contents for the Digital Edition of Midwest Vegetable Guide - 2022
