Brown rust of wheat, primarily caused by the fungus Puccinia recondita, is prevalent in northern and eastern India, leading to up to 90% yield loss. Symptoms include orange-brown pustules on leaves, which can result in reduced photosynthesis and impaired plant growth. Management practices involve early sowing, mixed cropping, and the application of specific fungicides and resistant wheat varieties.

1. Brown Rust of Wheat
Presented by:-
Vikas Kumar
3rd year Student of B.Sc.(Agriculture)
Gochar Mahavidyalya
Rampur Maniharan, Saharanpur

2. Introduction
According to Govindu(1977) Brown rust occurred
in Western UP in 1971-72 and 1972-73.
 Common in North and East India in Bihar, Punjab
and Uttar Pradesh.
 Favourable tem. - 15ºC.
 Loss- 90%
Also called Leaf Rust.

3. Symptoms
 Initiation of disease, shine
orange coloured rusty
pustules mainly appears on
the leaves.
 Small, rounded pustules
scattered on the leaf.
 First develop on upper
surface later on becomes on
both sides.

4. Rupture the leaf epidermis
and expose the uredospores.
Uredospores are orange-
brown colored.
Later uredospores converted
into teleospores which appears
the dark brown to black color.

5. In case of heavy infection,
photosynthesis is reduced.
Ears and plant growth
become retarded
Yield, quality of the grain
and hay also reduced.

9. Pathogen Name:- Puccinia recondita
Heteroecious and macrocylic fungus
Uredospores are grouped in small irregularly scattered clusters.
Not established in India as annual reccurence.
Thalictrum flavum is the alternate host.
Pathogen survive on self grown wheat in hills.

10. Alternate
host
of
Brown
Rust
of
wheat:
Thalictrum
flavum

11. A and B
Teliospores
C and D
Basidiospores
E and F
Pycniospores
G and H
Aeciospores
E and F
Pycniospores
I and J
Urediniospores

12. Infection Structure of Puccinia recondita on leaf surface

13. Classification:-
Kingdom - Mycota/Fungi
Division - Eumycota
Sub-division - Basidiomycotina
Class - Teliomycetes
Order - Uredinales
Family - Pucciniaceae
Genus - Puccinia
Species - recondita

14. Management:-
Early sowing
Mixed cropping
Avoid excess use of nitrogen and apply optimum amount of
potassium.
Avoid excess irrigation.
2-4 spray of Dithane Z 78 or Dithane M45 or Tilt @0.2%
Resistant varieties:- PBW154, HS277, Malviya wheat 318,
Pusa Gold