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Search the Nematode Collection

USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It was subsequently directed and curated by Dr. Zafar Handoo. Current curators are Dr. Benjamin Waldo and Dr. Paulo Reis Vieira. It is one of the largest and most valuable nematode collections in existence with over 40,000 permanent slides and vials and a total repository of nematode specimens reaching several million. It includes over 1900 type specimens and the valuable and irreplaceable collections of Cobb-Steiner, Thorne, and others. Nematodes from worldwide and domestic sources are represented in the collection. The Collection and associated database provide important information for reference purposes and taxonomic research by U.S. and foreign scientists and a permanent repository for type and other specimens. This website provides a portal to search those specimens that have been cataloged to date and provides data on nematode hosts, occurrence, and distribution.

Displaying 19237 - 19248 of 41945 records

Entry Number: 19238

  • Nematode: Alaimus primitivus
  • Host: Beta saccharifera (Sugarbeet) in/on Seedlings
  • Origin: West Jordan, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1936 May 28
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1h (4 female)

Entry Number: 19239

  • Nematode: Alaimus primitivus
  • Host: Medicago sativa (Alfalfa) in/on Crowns
  • Origin: Minden (Soil to depths of 2-3"), Nevada, USA
  • Collector: W. C. McDuffie via Gerald Thorne
  • Date Collected: 1937 Nov 10 & 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1i (5 female)

Entry Number: 19240

  • Nematode: Alaimus primitivus
  • Host: Malus sp. (Apple) in/on Roots/Soil
  • Origin: Berkeley, California, USA
  • Collector: P. A. Ark via Gerald Thorne
  • Date Collected: 1939 May 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1k (8 female, 1 male)

Entry Number: 19241

  • Nematode: Alaimus primitivus
  • Host: Zea mays (Corn field) in/on Roots/Soil
  • Origin: Perry, Georgia, USA
  • Collector: C. W. McBeth via Gerald Thorne
  • Date Collected: 1939 Sep 09
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1m (8 female)

Entry Number: 19242

  • Nematode: Alaimus primitivus
  • Host: Fragaria sp. (Strawberry (wild)) in/on Soil
  • Origin: Waldport (Coast sand dunes), Oregon, USA
  • Collector: W. D. Courtney via Gerald Thorne
  • Date Collected: 1947 Dec 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Ditylenchus 12a (1 female)

Entry Number: 19243

  • Nematode: Alaimus primitivus
  • Host: in/on Soil
  • Origin: Perry, Georgia, USA
  • Collector: C. W. McBeth via Gerald Thorne
  • Date Collected: 1940 Feb 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1n (2 female, 2 male)

Entry Number: 19244

  • Nematode: Alaimus primitivus
  • Host: in/on Soil
  • Origin: Kern County (Several hosts & localities), California, USA
  • Collector: M. A. Lindsey via Gerald Thorne
  • Date Collected: 1940 Jul
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Rotylenchus 1s (1 female)

Entry Number: 19245

  • Nematode: Alaimus primitivus
  • Host: Citrus sp. in/on Roots
  • Origin: Los Angeles County, California, USA
  • Collector: K. M. Smoyer (Asst. County Agent) via Gerald Thorne
  • Date Collected: 1941 Jan 30
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1q (4 female)

Entry Number: 19246

  • Nematode: Alaimus primitivus
  • Host: Juglans sp. (Walnut (white)) in/on Roots
  • Origin: Santa Clara, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Nov 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Psilenchus 2 (3 female)

Entry Number: 19247

  • Nematode: Alaimus primitivus
  • Host: Prunus sp. (Cherry (tree) in/on Roots
  • Origin: Beaumont, California, USA
  • Collector: M. M. Winslow via Gerald Thorne
  • Date Collected: 1942 May 27
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1r (3 female)

Entry Number: 19248

  • Nematode: Alaimus primitivus
  • Host: Prunus amygdalus (Almond) in/on Soil
  • Origin: Escalon, California, USA
  • Collector: C. H. Swanson via Gerald Thorne
  • Date Collected: 1942 Mar 12
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1s (2 female)

Entry Number: 19249

  • Nematode: Alaimus primitivus
  • Host: in/on Soil
  • Origin: Pee Dee Experimental Station, Florence, South Carolina, USA
  • Collector: E. E. Hall via Gerald Thorne
  • Date Collected: 1942 Apr 03
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Alaimus 1t (2 female)