This document discusses weed management and presents various methods for controlling weeds. It defines a weed as an unwanted plant growing where it is not desired. The goal of weed management is to limit weed infestation so that crops can be grown profitably. Methods of weed management include physical methods like tillage and hand weeding, cultural methods that give crops a competitive advantage like using weed-free seeds, chemical methods using herbicides, and biological methods utilizing organisms to limit weed growth. Prevention, eradication, and control are the principles of effective long-term weed management.

1. WEED MANAGEMENT
P R E S E N T E D B Y –
A r c h a n a K u m a r i ( R 2 0 3 2 1 0 7 )
S a t a n i k S i l ( R 2 0 3 2 1 2 6 )
S U B M I T T E D T O –
D r . P a n k a j K u m a r M i s h r a
( A s s i s t a n t P r o f e s s o r o f P l a n t P a t h o l o g y )
RAMAKRISHNA MISSION VIVEKANANDA EDUCATIONAL AND RESEARCH INSTITUTE
( RKMVERI )

2. What is weed ?
" A weed is an unwanted plant growing
where is not desired. " - Jethro Tull
Unwanted undesirable plant that interfere
with the utilization of land , water resources
and thus adversely affect the crop
production and human welfare.

3. Weed Management
The process of limiting weed infestation , so that crops
can be grown profitably or other operations can be
conducted efficiently.

4. Principle of Weed Management

5. It is a long term planning so that the
weeds could be controlled or managed
more effectively and economically than
is possible where these are allowed to
disperse freely
Prevention

6. • Sowing of weed free clean seed
• Use of clean implements
• Removal of weeds along canal and
irrigation channel
• Care in transplanting of seedling /
plantlets
• Avoiding passing of cattle from weed
infested area

7. It refers that a given weed species, it's
seed and vegetative part has been killed
or completely removed from a given
area and that weed will not reappear
unless reintroduced in that area.
Eradication

8. In control methods , the weeds are
seldom killed but their growth is
severely restricted , the crops make a
normal yield.
Control

10. P H Y S I C A L
M E T H O D S

11. Tillage Hoeing
Mowing
Hand Weeding

12. Soil Solarisation Burning
Sickling
Flooding

13. C U L T U R A L
M E T H O D S

14. • Principle behind this is giving competitive
advantage to the crop.
• Cultural methods alone cannot control
weeds, but help in reducing weed
population.
• They should, therefore be used in
combination with other methods.

16. C H E M I C A L
M E T H O D S

17. • Herbicides are chemicals capable of killing
or inhibiting the growth of plants.
• Today we have 150 herbicides in common
use for selective and non selective control
in different areas.

18. BIOLOGICAL
M E T H O D S

19. Utilization of natural living organism, such
as insects, herbivorous fish, other animals,
disease organisms and competitive plants
to limit their growth.

20. THANK YOU