Golden Nematode Program Manual - Phytosanitary Resources

Procedures: Survey
Soil Surveys
Soil Surveys
Soil surveys are conducted using either manual or mechanical
samplers. Prior to beginning the soil survey work, contact all growers
involved in the survey and whether the growers have encountered any
trouble spots in potato fields or tomato fields. See Plant Damage on
page 2-1-6.
Field soil sampling is used for detection and delimiting purposes. The
pattern and number of samples to be taken will vary depending upon
the likelihood of infestation, acreage involved, personnel available, and
other factors.
When surveying all potato or tomato fields is not possible, selection
should be based on crop history. Fields which have been planted to
potatoes and/or tomatoes consecutively for the longest period of time
should be selected first. There is little likelihood of finding nematode in
fields planted to a host crop for less than three (3) consecutive years. If
crop rotation is practiced on a field, then a longer period of time is
required for the nematode to build up to a detectable level.
Survey of Commercial Potato Fields
Special sanitary procedures apply when conduction a survey of
commercial potato fields. See Cleaning of Clothing, Equipment and
Supplies During Survey of Commercial Potato Fields on page 2-2-18.
Sanitation
Every reasonable precaution must be taken to prevent the spread of
golden nematode by program personnel or equipment. Particular care
must be taken when working in golden nematode infested fields. Each
person and piece of equipment involved in program activities of the
golden nematode quarantine is a potential carrier of this pest. This
includes equipment and materials entering any golden nematode
infested field or land (such as gas or electric company trucks and
equipment, telephone company trucks and equipment, cable
company, etc.). In addition, vehicles, trucks, and all other farm
equipment must be steam cleaned before being sold or removed from
any golden nematode infested farm.
See Sanitation on page 2-2-17 for detailed instructions and
requirements for cleaning clothing, boots, equipment, supplies, and
vehicles before, during, and after conducting a survey.
11/2007-01 Golden Nematode Program Manual 2-3-3
PPQ