1/10/09

List the common field symptoms of nematode damage in:
established perennial plantings; (REVIEW)
annual plantings. (REVIEW)

Describe and give an example of field conditions that can aggravate
nematode problems. (REVIEW)

Describe how the following provide general indications that
nematodes may be damaging plants in the field:
pocketed or irregular spots of poor growth; (REVIEW)
indigenous association with crop and location; (REVIEW)
sampling history; (REVIEW)
history of nematicide usage; (Review)
crop susceptibility. (REVIEW)

List the procedures PCAs should follow to identify and confirm a
nematode problem. (REVIEW)

Describe how PCAs can detect potential nematode problems before
planting. (REVIEW)

List two examples of damage threshold values for California
nematodes. (REVIEW)

List the factors to take into account when using quantitative assays to
forecast future nematode damage. (REVIEW)

Methods of Soil Sampling and Nematode Extraction

Sampling Considerations

Identify the appropriate time of sampling for:
annual crops; (REVIEW)
vineyards or orchards; (REVIEW)
ornamental plantings or turf. (REVIEW)

List the background information that should be included when
sending a sample to a lab. (REVIEW)

List the factors that determine the size of the sample to be taken. (REVIEW)

Define sample size and list the number of soil cores that make up a
basic minimum sample. (REVIEW)

List the factors to consider when stratifying the field. (REVIEW)

6

IV.

A.