Weed Management Handbook
Weed Management
Handbook
Summarized by: Student X
Introduction
• What is a weed?
• Disadvantages and advantages
• Seed bank
• Different ways to deal with weeds
• Resistance of herbicides
What is a weed?
• Older definitions:
-a plant not valued for its use or beauty
-a plant whose virtues have yet to be
discovered
• Modern definitions:
-plants that are considered undesirable by
producers
-unwanted plant which in some way hinders or
interfers with human activity. (Crops may at
some point also be weeds)
Weed disadvantages
• Reduces crop yield – weeds and
crops have to share resources such
as light, water and nutrients
• Reduces crop quality and health –
increases moisture and disease
levels
• Delay harvesting – conservation
of moisture may
delay ripening
Beneficial effects of weeds
• Valuable indicators
• Help against erosion
• Many weeds are used as herbs for
flavo...