Introduction Lesson plans and
teachers notes		 Learning about Biocontrol Useful links Curriculum links 2 Minute Film Challenge
Problems with weeds chart

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Why weeds are a problem in NZ?

 

 


Problems with weeds chart

Below is a sample of how you can use the Problems with Weeds Chart

Name of Weed
Problem
Environment
Economics
Health
Ragwort, thistle
 

Replaces crops or pasture grass Reduces crop production

 
Old mans beard Smothers native plants and stops sunlight and nutrients from getting to the plant.    

Privet

    

Pollen may cause hayfever and asthma

Download - Problems with Weeds doc.