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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 21949 - 21960 of 41945

Entry Number: 21951

  • Nematode: Meloidogyne marioni
  • Host: Gossypium sp. (Cotton) in/on Roots
  • Origin: Florence, South Carolina, USA
  • Collector: Gerald Thorne
  • Date Collected: 1938 Aug 10
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2m (2 males)

Entry Number: 21952

  • Nematode: Meloidogyne marioni
  • Host: Daucus sp. (Carrots) in/on Roots
  • Origin: Saint George, Utah, USA
  • Collector: Gerald Thorne
  • Date Collected: 1935 Mar
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2n (5 females)

Entry Number: 21953

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Shafter, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 May 21
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Dorylaimellus 10 (1 male)

Entry Number: 21954

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Berkeley, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Oct 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2q (5 males)

Entry Number: 21955

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Berkeley, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Oct 17
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2r (8 males)

Entry Number: 21956

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Davis, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 04
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Triplonchium 3a (2 males)

Entry Number: 21957

  • Nematode: Meloidogyne marioni
  • Host: Vigna sinensis (Stained plant & Cow pea roots) in/on Plant & Roots
  • Origin: Davis, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 Apr 11
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2s

Entry Number: 21958

  • Nematode: Meloidogyne marioni
  • Host: Gossypium sp. (Cotton) in/on Roots
  • Origin: Shafter, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1940 May 29
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2x

Entry Number: 21959

  • Nematode: Meloidogyne marioni
  • Host: Dichondra ropens in/on Soil
  • Origin: Sierra Madre, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1941 Jan 06
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2z (1 male)

Entry Number: 21960

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Aberdeen, Idaho, USA
  • Collector: Gerald Thorne
  • Date Collected: 1944 Aug 07
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Neotylenchus 2c (1 male)

Entry Number: 21961

  • Nematode: Meloidogyne marioni
  • Host: in/on Soil
  • Origin: Visalia, California, USA
  • Collector: Gerald Thorne
  • Date Collected: 1944 Apr 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Pratylenchus 3f (3 larvae)

Entry Number: 21962

  • Nematode: Meloidogyne marioni
  • Host: Medicago sativa (Alfalfa field) in/on Soil
  • Origin: Fallon, Nevada, USA
  • Collector: Gerald Thorne
  • Date Collected: 1946 Nov 22
  • Date Received: 1963 Sep 06
  • Disposition of Sample: Specimens to USDANC (Gerald Thorne)
  • Slides: Heterodera 2a1 (face view)