Wheat rust - Puccinia sp..

wheat stem rust and other species also...

1. Rust- Puccinia , Hemileia,
Uromyces

2. SYMPTOMS OF RUST
•Presence of rusty pustules
•Pustules are blister like out growth
protruding through epidermis

3. Rust in crops
•Wheat rust
•Groundnut Rust
•Coffee Leaf rust
•Sorghum rust
•Cumbu rust
•Cotton rust
•Bean rust
•Puccinia sp.
•Puccinia arachidis
•Hemileia vastatrix
•Puccinia purpurea
•Puccinia penniseti
•Phakospora desmium
•Uromyces fabae

4. Types of rusts
•Autoecious rusts – completes all the stages
in one single host – sunflower rust
•Heteroecious rust –Completes all the
stages in two different hosts- wheat stem
rust
1. Primary host (Main host)
2. Secondary host

5. Wheat rust disease
Black /stem rust- Puccinia graminis f. sp. tritici

6. Brown or leaf or orange rust –
Puccinia recondita

7. Yellow or stripe rust-
Puccinia striiformis

8. Yellow or stripe rust-
Puccinia striiformis

9. Sorghum rust

10. Groundnut rust

11. Cumbu rust

12. Coffee leaf rust

14. Bean rust –
Uromyces fabae

17. Wheat rust diseases
•Black /Stem rust
•Leaf/Brown/orange
rust
•Yellow or stripe rust
•Puccinia graminis tritici
•P. recondita
•P. striiformis

18. Stages in rust life cycle
1.Pcynial or spermatial stage
2.Aecial stage
3.Uredial stage (repeating stage)
4.Telial stage
5.Basidial stage

19. Pycnia (Stage 0)

20. Aecial cup
(stage 1)

21. Uredospores in
Uredosorus
(stage- 2)

22. Teliospores – (stage 3)

23. Basidial (stage- 4)