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 28129 - 28140 of 41944
Entry Number: 28133
- Nematode: Helicotylenchus discinus
- Host: (Forest) in/on Soil
- Origin: Black Hills, South Dakota, USA
- Collector: Gerald Thorne via R. B. Malek
- Date Collected: 1965 Sep 08
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: Helicotylenchus 7 (2 female, Type Slide)
Entry Number: 28134
- Nematode: Helicotylenchus discinus
- Host: (Dying lawn)
- Origin: Aberdeen, South Dakota, USA
- Collector: Gerald Thorne & M. Dehough
- Date Collected: 1965 Aug 17
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1174
Entry Number: 28135
- Nematode: Helicotylenchus exallus
- Host: (Hillside prairie) in/on Soil
- Origin: Parker, South Dakota, USA
- Collector: Gerald Thorne
- Date Collected: 1966 Aug 08
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: Helicotylenchus 8 (5 female, Type Slide)
Entry Number: 28136
- Nematode: Helicotylenchus exallus
- Host: Juniperus sp. (Juniper seed bed)
- Origin: Watertown, South Dakota, USA
- Collector: Gerald Thorne via R. B. Malek
- Date Collected: 1965 May 19
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1177
Entry Number: 28137
- Nematode: Helicotylenchus exallus
- Host: (Turfgrass)
- Origin: Parker, South Dakota, USA
- Collector: Gerald Thorne
- Date Collected: 1966 Aug 03
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-2299
Entry Number: 28138
- Nematode: Helicotylenchus exallus
- Origin: Murdo, South Dakota, USA
- Collector: Gerald Thorne
- Date Collected: 1967 Jun 19
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: Helicotylenchus 8e (5 female, 3 male)
Entry Number: 28139
- Nematode: Helicotylenchus exallus
- Host: Poa annua (Bluegrass field)
- Origin: Long Lake, Northwest of Aberdeen, South Dakota, USA
- Collector: Gerald Thorne
- Date Collected: 1967 Jun 10
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1179
Entry Number: 28140
- Nematode: Helicotylenchus exallus
- Host: (Declining lawn)
- Origin: Rapid City, South Dakota, USA
- Collector: Gerald Thorne via James D. Smolik
- Date Collected: 1967 Jun 15
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1181
Entry Number: 28141
- Nematode: Helicotylenchus exallus
- Host: Ulmus americana (American elm & Ash**)
- Origin: 3 miles South of White Earth River (Shelterbelt), South Dakota, USA
- Collector: Gerald Thorne via R. B. Malek
- Date Collected: 1967 Oct 18
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1182
Entry Number: 28142
- Nematode: Helicotylenchus bradys
- Host: Glycine max (Soybean field)
- Origin: 6 miles Northwest of Ames, Iowa, USA
- Collector: Gerald Thorne via G. E. Cook
- Date Collected: 1966 Sep 10
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-1184
Entry Number: 28143
- Nematode: Helicotylenchus bradys
- Origin: Barneville, Minnesota, USA
- Collector: Gerald Thorne
- Date Collected: 1967 Jun 05
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: TSD-314
Entry Number: 28144
- Nematode: Helicotylenchus bradys
- Host: (River bank) in/on Soil
- Origin: Breckenridge, Minnesota, USA
- Collector: Gerald Thorne
- Date Collected: 1967 Jun 05
- Date Received: 1989 May 02
- Disposition of Sample: Specimens to USDANC (Gerald Thorne South Dakota)
- Slides: Helicotylenchus 9b (4 female, Type Slide)