Seminar: Nematode Sampling and Prediction

Seminar: Nematode Sampling and Prediction SEMINAR: NEMATODE SAMPLING AND PREDICTION BY B. BOAG, R. NEILSON and D. J. F. BROWN Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, Scotland The principles upon which soil samples are collected for assessing plant parasitic nematodes in the soil are assessed. The importance of identifying the objectives of the sampling programme and species of nematode to be studied is emphasised. The development of optimum sampling patterns and the evolution and application of different mathematical formulae to describe the horizontal aggregated distribution of nematodes are discussed. Keywords: sampling, Taylor's Power Law, semi-variograms, kriging, modelling. SAMPLING Before devising sampling procedures for plant parasitic nematodes the objectives must be clearly defined. These include the detection of nematodes for statutory regula- tions e.g. for potato cyst nematodes Globodera rostochiensis and G. pallida (Southey, 1974; Seinhorst, 1982; Wood et al., 1983; Cotton, 1991) and the quantification of nematode populations for assessing crop losses (Barker et al., 1984), national surveys (Boag et al., 1992) or monitoring pupulations changes (Allsopp, 1990). Interest in optimising sam- pling strategies is likely to become more important in the future, as regulations become more stringent and restrict the use of nematicides and soil sterilants. Apart from directly counting Nematologica Brill

Seminar: Nematode Sampling and Prediction

Loading next page...
© 1992 Koninklijke Brill NV, Leiden, The Netherlands
Publisher site
See Article on Publisher Site

There are no references for this article.

You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial