|
Citrus
> Year-Round IPM Program > Winter > Weed
Survey
Citrus
 Winter Weed Survey
By surveying weeds in winter, you can identify summer species
that have escaped the current year’s weed control program
and identify any winter species that have emerged; these weeds
need to be controlled before they cause problems in the orchard
or before they set seed. Winter surveys help in planning
postemergent weed management. If preemergent herbicides have
already been used, the survey helps in determining the success
of the treatment and identifying resistant populations.
Record your weed survey results (winter
weed survey form—).
Keep these records to track weed population information from
year-to-year to better understand ongoing weed control problems.
Weed identification
Identify common winter
broadleaves and grasses.
How to survey your orchard
- Survey your orchard in winter to see which summer weed species
have escaped control.
- Identify winter annuals or any emerging species to see which
control treatments are needed, such as postemergent herbicides
or cultural methods.
- Pay particular attention to perennials, weeds near trees,
and border areas; sketch out a map of your orchard and note
areas of concern.
- Keep records of your survey results. By knowing which species
are present, you will be able to make appropriate decisions
on cultural and chemical controls.
Information collected over a period of years tells you how weed
populations may be changing and how effective your management
operations have been.
Important links
Top of page
|
