METHODS OF WEED CONTROL

1. Gaurav Arora
Baba Farid college, Bathinda
95011-15309
METHODS OF WEED
CONTROL

2. METHODS OF WEED CONTROL
• Preventive methods
• Mechanical methods
• Cultural methods
• Chemical methods
• Biological methods

3. Preventive
methods
Use of FYM
Uprooting weeds
before flowering
Use of clean farm
machinery
Keep clean
irrigation
channels
Nursery sampling
Use of clean
seeds

4. Mechanical methods
Hand
pulling
Hand
hoeing Interculture
Flooding
Flaming &
steaming
Mowing
Tillage

5. Cultural
methods
Date of sowing
Plant density
Planting pattern/
crop architecture
Soil solarization
Selection of quick
growing varieties
Tillage
Dab system
Mulching
Irrigation
management
Method of fertilizer
application
Crop rotation

6. Biological
methods
Quality of
bioagent
Host specific
Field
environment
Easy to multiply
Feeding habbits
Kind of
bioagent
Insects
Plant pathogens
Carp-fish
Competitive
plants

7. EXEMPLES OF BIOLOGICAL CONTROL OF
WEEDS ARE AS FOLLOWS
• Lantana camara- by Plusia verticillata
• Opuntia inermis- by cactoblastic cactorum
• Cyperus rotundus- by bactra verutana
• Parthenium hysterophorus- by zygogramma
bicolorata