Host

Disease

Pathogen

Principal Alternate Hosts

Bread Wheat
(Triticum aestivum)

stem rust

Puccinia graminis f.sp. tritici

Barberry (Berberis vulgaris, B. canadensis)

leaf rust

P. triticina (P. recondita f. sp. tritici)

Meadow Rue (Thalictrum speciosissimum = T. flavum ssp. glaucum)

leaf rust

P. tritici-duri*

Anchusa italica (image 1, image 2) images courtesy of Brahim Ezzahiri

stripe rust

P. striiformis f. sp. tritici

unknown

stripe rust

P. striiformis f. sp. hordei (rare)

unknown

Durum Wheat
(Triticum turgidum)

stem rust

P. graminis f.sp. tritici

Barberry (Berberis vulgaris, B. canadensis)

leaf rust

P. triticina (P. recondita f. sp. tritici)

Meadow Rue (Thalictrum speciosissimum = T. flavum ssp. glaucum)

leaf rust

P. tritici-duri*

Anchusa italica (image 1, image 2)
images courtesy of Brahim Ezzahiri

stripe rust

P. striiformis f. sp. tritici

unknown

Oat
(Avena sativa)

stem rust

P. graminis f. sp. avenae

Barberry (Berberis vulgaris, B. canadensis)

crown rust

P. coronata f. sp. avenae

Buckthorn (Rhamnus cathartica)

Barley
(Hordeum vulgare)

stem rust

P. graminis f. sp. tritici

Barberry (Berberis vulgaris, B. canadensis)

stem rust

P. graminis f. sp. secalis

Barberry (Berberis vulgaris, B. canadensis)

leaf rust

P. hordei

Star of Bethlehem (Ornithogalum spp.)

stripe rust

P. striiformis f. sp. hordei

unknown

stripe rust

P. striiformis f. sp. tritici (rare)

unknown

crown rust

P. coronata f. sp. hordei

Buckthorn (Rhamnus cathartica)

Rye
(Secale cereale)

stem rust

P. graminis f. sp. secalis

Barberry (Berberis vulgaris, B. canadensis)

leaf rust

P. recondita f. sp. secalis

Lycopsis arvensis (not found in the U.S.)

 crown rust

 P. coronata f. sp. hordei

Buckthorn (Rhamnus cathartica)

Corn
(Zea mays)

common rust

P. sorghi

Oxalis spp.

southern rust

P. polysora

unknown

tropical rust

Physopella pallescens

unknown

Pearl Millet
(Pennisetum glaucum)

pearl millet rust

P. substriata var indica

Eggplant (Solanum melongena)

Sorghum (Sorghum bicolor)

sorghum rust

P. purpurea

unknown

Tef (Eragrostidis tef)

tef rust

Uromyces eragrostidis

Crag or Amber Lily (Anthericum torreyi)

* Occurs only in the Mediterranean Area