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Cherry
> Year-Round IPM Program > Fruit
Development > Survey
for Weeds
 Cherry
Survey
for Weeds—Late Spring
By surveying weeds in late spring, you can identify any species
that escaped previous control attempts and determine which perennials
are present. Ideally tree rows are weed free, whereas weeds growing
in row middles can reduce water quality problems by preventing
soil erosion and water and sediment runoff to creeks and streams.
However, perennial weeds are problematic and should be kept from
establishing in row middles.
How to survey your orchard
- Survey your orchard in late spring or early summer, after
summer annuals have germinated.
-
Rate the degree of infestation for each weed species
on your weed survey form. Use either a numeric scale from
1 to 5 (1 being the lightest, 5 being the heaviest), or
rate as "light," "medium," or "heavy."
-
Check for regrowth of perennials a
few weeks after cultivation.
- Sketch
a map of the orchard and mark areas with major weed infestations
for follow-up control action, noting carefully the location
of weeds producing seed.
- Indicate the growth stage of the weed
(seedling or mature).
- Keep
records of
your survey results for future management decisions.
Survey information collected over a period of years tells you
how weed populations change and how effective your management
operations have been over the long term. Keep these records so
that you can track weed populations from year to year to
better understand ongoing weed control problems such as resistance.
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