| Septoria | |
|---|---|
| Septoria leaf spot of celery | |
 |
|
| Septoria leaf spot of celery | |
| Scientific Classification | |
| Kingdom: | Fungi |
| Phylum: | Ascomycota |
| Class: | Dothideomycetes |
| Subclass: | Dothideomycetidae |
| Order: | Capnodiales |
| Family: | Mycosphaerellaceae |
| Genus: | Septoria |
| Species: | Septoria apiicola |
| Synonyms | |
| Septoria leaf spot | |
Spetoria leaf spot of celery (Septoria apiicola) is a blight of celery, which is extremely susceptible to the disease during extended periods of leaf wetness.[1]
Symptoms[]
Septoria apiicola can attack any part of the plant above ground. As outer leaves and stalks turn dark and wither, the entire field may look scorched.[2]
Prevention[]
Biological[]
This fungi often are introduced on 1-year-old seed. For this reason, use seed 2 years old or older. Soak newer seed at 47°C (118°F) for 30 minutes; then dry at room temperature.[2]
Chemical[]
Spray plants with one of the following fungicides on a 7-day schedule in the field, and if the label permits, at shorter intervals in seedbeds.[2]
- Quadris 9.2-15.4 fl oz/A, 7-14 day intervals (0 days-PHI). Follow label recommendations for fungicide resistance management.
- Quadris Opti 2.4-3.7 pt/A (7 days-PHI).
- Bravo Ultrex 0.9-1.4 lb/A, 3-5 day spray schedule or 1.8-2.7 lb/A, 7-day schedule (7 days-PHI).
- Bravo Weather Stik 6F 1-1.5 pt/A, 3-5 day spray schedule or 2-3 pt/A, 7-day schedule (7 days-PHI).
- Equus 720 2-3 pt/A (7 days-PHI).
- Tilt 4 oz/A (14 days-PHI).
- Quilt 14 fl oz/A on a 7-10 day schedule (14 days-PHI).
- Kocide 3000 0.75 lb/A (0 days-PHI). Apply at 5-7 day intervals as soon as plants are established in the field.
- Cuprofix Ultra 40 D 1.25 lb/A. Apply at 5-7 day intervals when conditions favor disease.
- Tanos 8.0-10.0 oz/A (1 day-PHI)
Examples[]
References[]
- ↑ Berger, R.D. (1970). Epiphytology of celery late blight. Florida State Hort.Soc.Proc.83:208-212.
- ↑ a b c Phillips, P.A. Late Blight of Celery (Septoria apiicola): Timing Fungicides Based on its Biology as Predicted by In-Field Weather Stations. Cal/EPA, Department of Pesticide Regulation, Pest Management Analysis and Planning Program, and the U.S. Environmental Protection Agency.
| Apiaceae troubles |
|
|---|---|
| Carrot · Celeriac · Celery · Chervil · Coriander · Cumin · Dill · Fennel · Lovage · Parsnip · Parsley · Sweet cicely | |
| Adverse conditions | Cavity spot · Stem crack · Forking · Phosphorus deficiency · Split roots |
| Diseases | Aster yellows · Bacterial blight of carrot · Bacterial soft rot · Black rot · Cavity spot · Cercospora leaf spot of carrot · Downy mildew · Powdery mildew · Crown rot · Leaf blight of fennel · Mosaic virus · Phytophthora blight · Pseudomonas syringae · Sclerotinia rot · Septoria leaf spot of celery · Septoria leaf spot of parsley · Violet root rot |
| Pests | Aphid · Carrot fly · Carrot weevil · Carrot-willow aphid · Celery fly · Potato rot nematode · Root-knot nematode · Sciarid fly · Silver Y moth · Swift moth |