How to Manage Pests
Interactive Tools and Models: NEMABASE
The NEMABASE database gives fast, easy access to the host status of plants
to plant-parasitic nematodes throughout the world, and helps with rotation
and cover cropping decisions for nematode management. Download the entire
database or do simple searches on the World Wide Web.
Developed in the UC Davis Department of Nematology, NEMABASE contains
extensive lists of cover crops, native plants, crop cultivars, and their
status as host for a wide range of nematodes. You'll find information on:
|| 6,100 plant taxa, including higher taxonomic information,
geographic origin, growth habit, and use of each plant species.
|| 3,900 nematodes, including details of the higher taxonomic
information for 3,900 of the major plant-parasitic nematodes (to
the race level).
|| 38,000 interactions, detailing the nature of each plant
and nematode interaction, the constraints of the experiment or observation,
and the source and quality of the data.
This information has been extracted from nearly 5,000 articles published
over the last 90 years in six journals that deal primarily with plant-parasitic
nematodes, and in widespread reports assembled in earlier compilations
of host records. Approximately 70 percent of the available data on plant
and nematode interactions has been gathered into the database.
Why was NEMABASE developed?
NEMABASE collates, interprets, and evaluates available information on
the host status of plants to the plant-parasitic nematodes, and makes it
available as a basis for management decisions. (More...)
- allows selection of nonhost crops, and determination of the availability
of resistant cultivars, for species and races of plant-parasitic nematodes;
- allows selection of cover crops that are nonhosts to resident plant-parasitic
nematode populations; and
- provides rapid search of the available knowledge base for novel species
of crops or cover crops that warrant testing in a cropping system in
relation to their effect on resident nematode populations.
Department of Nematology faculty at the University of California, Davis,
developed NEMABASE over the past several years with assistance of graduate
students and staff.
Funding was provided by the UC Department of Nematology, the UC Statewide
Integrated Pest Management Program, and from USDA-Extension Service Smith-Lever
IPM funds. (More...)
You can gain access to NEMABASE in two ways:
- Download the database and search engine directly to your PC
- Do simple searches through the World Wide Web.
See below for more information on each.
PC version: Complete database and search engine for your PC
Hardware and software requirements
NEMABASE is distributed in
a FOXPro run-time version. It does not require you to have FOXPro database
software. For efficient use of NEMABASE, you'll need
- A Pentium or 486 PC
- Windows 3.1 or 95 or better
- At least 8 MB RAM (preferably 16)
- SVGA monitor
- approximately 20 Mb available disk space
- Windows NT, 2000, or XP + systems will require this
Download NEMABASE from this site
the NEMABASE installer (5.6 Mb) to install NEMABASE on your PC
- When the program has been transferred successfully to your PC,
- use the Windows Program Manager and select "Run...",
- specify the path of the NEMABASE.EXE file
- The installer will decompress NEMABASE and install it under Windows.
- Windows NT, 2000, or XP + systems will require this
- To run NEMABASE, double-click the NEMABASE 1.2 icon.
The online help is designed to help you get started, and gives specific
information about how to use the program features. Press the HELP button
or press F12 at any time to access the Help Menu. (From the Help
Menu, double-click in the Memo field of the desired topic.)
- Specify plant and nematode. To run a database search,
or "query," you must first select a Plant and a Nematode.
These may be selected from higher taxon, e.g., family, to intraspecific
levels (e.g., variety, cultivar, race). Refer to the Help topic "General
Query Procedure" for more information.
- Specify criteria. To further specify the search criteria,
you may set any number of "filters": Date Range, Host Status,
Susceptibility, Tolerance, Nature of Record, Study Site, Soil Texture,
Climate, Geographic Origin of record, and Data Quality. Multiple conditions
may be designated for each filter.
- Begin the search. After selecting the Plant, Nematode,
and any desired Filters, click on the Setup box next to the nematode
name to move the red arrow in preparation for processing the query.
Press the Process button to begin the search.
- Output reports. When the search is completed, press
Print to generate a report that includes fields you designate. The
report can be printed to a printer and to database or text files. The
files may be imported into a database program or spreadsheet for further
analysis, or into a word processor.
When searching, note that several common names for nematodes or plants
may be used preferentially in different regions. Many records will be
missed if a query is processed using a common name designation not listed
in the nematode or plant names table of NEMABASE. It will always be
best to use the genus and species name of the nematode, or genus and
species (and variety, if appropriate) of the plant.
World Wide Web version of NEMABASE
The database contents are on the UC Davis Department of Nematology World Wide Web server. Go to "Databases" andthen click on "NEMABASE Nematode-Host Association Database." Enter your search criteria according to the instructions given there.
Database design and field descriptions
NEMABASE is structured as a series of relational database tables with
fields for the following features of nematodes and plants, and for their
||Genus, species, authority, race, common
name, order, superfamily, family, sub-family.
||Genus, species, authority, variety, cultivar, common
name, growth habit, usage, native range, family.
|Qualitative Interaction Fields
||Non-host, resistant/susceptible, tolerant/intolerant;
temperature, location, soil texture.
|Quantitative Interaction Fields
||Pf/Pi, damage thresholds, damage function.
|Secondary Interactions Fields
||Fungal, bacterial, virus interactions.
|References, Source Fields
||Author and citation.
|Evaluation Comment Fields
||Quality of information; association, field observation;
Forty-seven variables are stored in the relational tables. The dictionary lists
each field name abbreviation and provides a description.
Comments? Contact Howard Ferris, UC Davis Department of Nematology,
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