Diseases of Solanaceous Crops

Early Blight Alternaria solani

Target Spot

Phoma Blight

Leaf Mold

Timber Rot or White MoldSclerotinia sclerotiorum

Buckeye RotPhytophthora spp.

Blossom end rot

Sanitation Increase plant spacing Reduce plant canopy

density Avoid overhead watering Resistant varieties Fungicides

Management of Foliar & Fruit Diseases

Bacterial SpeckPseudomonas syringae pv. tomato

Bacterial SpotXanthomonas campestris pv. vesicatoria

Bacterial SpotXanthomonas campestris pv. vesicatoria

Root Knot NematodesMeloidogyne spp.

Management of Root Knot Nematodes

Resistant varieties Rotation Green manures Remove infected plants (esp. roots) Trap crops Summer fallow, solarization

Fusarium Wilt Fusarium oxysporum f.sp. lycopersici

Management of Fusarium Wilt

Resistant varieties Rotation Maintain soil pH near 7 Use calcium nitrate

Southern BlightSclerotium rolfsii

Management of Southern Blight

Do not plant tomatoes after susceptible crops (peppers, eggplant, etc.)

Use calcium nitrate Physical barrier at stem Bury sclerotia

Southern Bacterial WiltRalstonia (Pseudomonas) solanacearum

Management of Southern Bacterial Wilt

Rotation: minimum of 3 years Use: corn, beans & cabbage Do Not Use: pepper, eggplant, potato

Resistant (partial) tomato varieties:Neptune (Southern Exposure Seed Exchange) BHN 466 & 669 (BHN)FL 7514 (Rupp)

Tomato Spotted Wilt Virus

Management of Tomato Spotted Wilt Virus

Resistant varieties Manage thrips: metallized

mulches, insecticides Remove plants immediately after

harvest

Amelia (Harris Moran) Bella Rosa (Sakata) BHN 444 (BHN) BHN 602 (BHN) BHN 640 (BHN) Crista (Harris Moran) Finishline (Harris Moran)

Fletcher (NCSU) Florida 7964 (UF) Mountain Glory (NCSU) Red Defender (Harris

Moran) Redline (Rogers) Talladega (Rogers) Top Gun (Seminis)

TSWV-Resistant Tomato Varieties

Tomato Spotted Wilt Virus

TSWV-Resistant Pepper Varieties

Excursion II (Abbott & Cobb) Heritage (Harris Moran) Plato (Seminis) Stiletto (Rogers)

Declaration (Harris Moran) Magico (Harris Moran)

Glyphosate injury

Phenoxy herbicide injury