Agriculture Reference
In-Depth Information
To control weeds which are growing among or close to desirable plants,
you must take advantage of the differences between the weeds and the desired
species. Be sure that the plants you are trying to protect are not susceptible to
the chosen weed control method. Generally, the more similar the desirable
plant and the weed species are to one another, the more difficult weed control
becomes. For example, broadleaf weeds are most difficult to control in
broadleaved crops, and grass weeds are often difficult to control in grass crops.
Figure 3.16
Floating algae mass.
1.
Weed Control Strategy
A plan to control weeds may include:
•
biological control
•
cultural control
•
sanitation
•
chemical control.
a.
Biological Control
Biological weed control usually involves the use of insects and dis-
ease-causing agents which attack certain weed species. An example is the con-
