Table 2. Crop losses of epidemic development of the most problematic diseases in different regions (number out of 10 years, 1994-2003).

 

Disease

Regions

North Caucasus

Central chernozem

Central

Povolgski

Volgo-Viatski

Uralski

Leaf wheat rust

(Puccinia triticina)

25-30

15-20

20-25

25-30

15-20

15-20

Leaf rye rust

(Puccinia disperse)

-

15-20

15-20

15-20

20-25

20-25

Crown oat rust

(Puccinia coronifera)

5-10

5-10

10-15

10-15

10-15

10-15

Dwart rust of barley

(Puccinia hordei)

10-15

5-10

1-5

5-10

5-10

1-5

Wheat stripe rust

(Puccinia striiformis tritici)

20-30

-

-

-

-

-

Stem rye rust

(Puccinia graminis secalis)

-

-

20-30

20-30

30-40

15-20