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USDA Nematode Collection was established in June 1960 By A. Morgan Golden. It is currently directed and curated by Dr. Zafar A. Handoo with technical support from Steve Rogers. It is one of the largest and most valuable nematode collections in existence with over 49,200 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 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 21721 - 21732 of 41939

Entry Number: 21727

  • Nematode: Heterodera rostochiensis
  • Host: Solanum tuberosum (Potato) in/on Roots/Soil
  • Origin: Kitzeberg, Germany
  • Collector: Gerald Thorne
  • Date Collected: 1939 Aug 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 6l (vulvar view)

Entry Number: 21728

  • Nematode: Heterodera avenae
  • Host: Aveena sp. (Oat) in/on Roots/Soil
  • Origin: Kitzeberg, Germany
  • Collector: Gerald Thorne
  • Date Collected: 1939 Aug 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 7 (6 cysts)

Entry Number: 21729

  • Nematode: Heterodera avenae
  • Host: Aveena sp. (Oat) in/on Soil
  • Origin: Kitzeberg, Germany
  • Collector: H. Goffart via Gerald Thorne
  • Date Collected: 1939 Aug 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 7f (female face view)

Entry Number: 21730

  • Nematode: Heterodera avenae
  • Host: Aveena sp. (Oat) in/on Soil
  • Origin: Ontario, Canada
  • Collector: Gerald Thorne
  • Date Collected: 1934 Jul 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 7h

Entry Number: 21731

  • Nematode: Heterodera avenae
  • Host: Aveena sp. (Oat) in/on Roots/Soil
  • Origin: Toronto, Ontario, Canada
  • Collector: Gerald Thorne
  • Date Collected: 1934 Jul 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 7i (cyst cuticle)

Entry Number: 21732

  • Nematode: Heterodera sp.
  • Host: Atriplex confertifolia (Shadscale) in/on Roots
  • Origin: Mosida, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1933 May 19
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 8 (8 females)

Entry Number: 21733

  • Nematode: Heterodera weissi
  • Host: in/on Soil
  • Origin: Hicksville, New York, USA
  • Collector: Gerald Thorne
  • Date Collected: 1949 Sep 15
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 9 (8 cysts)

Entry Number: 21734

  • Nematode: Heterodera tabacum
  • Host: Solanum integrefolium (Eggplant (Ethiopian)) in/on Soil
  • Origin: New Haven, Connecticut, USA
  • Collector: B. F. Lownsberry via Gerald Thorne
  • Date Collected: 1952 Dec 20
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 10 (10 females)

Entry Number: 21735

  • Nematode: Heterodera tabacum
  • Host: Solanum dulcamara (Nightshade (Bitter)) in/on Soil
  • Origin: New Haven, Connecticut, USA
  • Collector: B. F. Lownsberry via Gerald Thorne
  • Date Collected: 1952 Mar 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 10a (10 males)

Entry Number: 21736

  • Nematode: Heterodera tabacum
  • Host: Solanum nigrum (Nightshade (Black)) in/on Soil
  • Origin: New Haven, Connecticut, USA
  • Collector: Gerald Thorne
  • Date Collected: 1952
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 10b (5 females Y)

Entry Number: 21737

  • Nematode: Heterodera tabacum
  • Host: Solanum dulcamara (Nightshade (Bitter)) in/on Soil
  • Origin: New Haven, Connecticut, USA
  • Collector: Gerald Thorne
  • Date Collected: 1952
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 10c (10 larvae)

Entry Number: 21738

  • Nematode: Heterodera tabacum
  • Host: Solanum dulcamara (Nightshade (Bitter)) in/on Soil
  • Origin: New Haven, Connecticut, USA
  • Collector: Gerald Thorne
  • Date Collected: 1952
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 10u (1 cyst)