Effect of Bt Corn for Corn Rootworm Control on Nontarget Soil Microarthropods and Nematodes

By M. A. Al-Deeb, G. Wilde, J. Blair, T. Todd. 2003

91 citations recorded by the source corpus.

Abstract The western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), is a major pest of corn in Kansas. Planting Bt corn hybrids resistant to this pest is being tested as a method to control the larval stage of corn rootworms. These hybrids express Cry3Bb1 toxin and are expected to only directly impact chrysomelids and possibly related taxa. Soil samples were examined to evaluate the effect of Bt corn for corn rootworm control on soil microarthropods and nematodes in Kansas in 2000 and 2001. Soil samples from soil close to Bt corn and to its isoline were taken on three occasions (early, mid, and late season) from eight locations in 2000 and three locations in 2001. Soil mites and Collembola were extracted using a modified Tullgren high-gradient extractor. Nematodes were extracted using a centrifugal-flotation procedure. In general, numbers of soil mites (Prostigmata, Mesostigmata, and Oribatei), Collembola, and nematodes were similar in soil planted with Bt corn and soil planted with its isoline.

Subfields: Insect Science, Molecular Biology

View Paper: https://www.semanticscholar.org/paper/117e7b6c2a4650e599f06e219520c261e7a1e220

How researchers see this paper

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In Insect Science

1. J. Obrycki
2. D. Weber
3. M. E. Rice
4. M. Goettel
5. H. Strasser
6. J. Lundgren
7. M. Erlandson
8. S. Vidal

In Molecular Biology

1. J. Obrycki
2. D. Weber
3. M. E. Rice
4. J. Lundgren
5. M. Erlandson
6. Ulrich Kuhlmann
7. C. Pilcher
8. M. Goettel

Citations in the corpus

• Impact of Transgenic Bacillus thuringiensis Corn and Crop Phenology on Five Nontarget Arthropods (2005, background): “…(Johnson and Gould 1992, Johnson 1997, Mascarenhas and Luttrell 1997, Pilcher et al. 1997, Riddick and Barbosa 1998, Hilbeck et al. 1998a, b, 1999, Schuler et al. 1999a, b, Zwahlen et al. 2000, Wold et al. 2001, Bernal et al. 2002, Bourguet et al. 2002, Al-Deeb et al. 2003, Romeis et al. 2004).”
• Detectability of Coleopteran-specific Cry3Bb1 Protein in Soil and Its Effect on Nontarget Surface and Below-Ground Arthropods (2005, result): “These results indicate no negative effect on soil mites and Collembola and are in agree- ment with Al-Deeb et al. (2003).”
• Ecological compatibility of GM crops and biological control (2009, unknown): “In two studies, the abundance of all nematodes (both entomopathogenic and non-entomopathogenic) did not differ among experimental soils from non-Bt maize fields, Bt maize fields, and soil amended with tissue of Bt maize (Saxena and Stotzky, 2001a; Al-Deeb et al., 2005).”
• A review of the natural enemies of beetles in the subtribe Diabroticina (Coleoptera: Chrysomelidae): implications for sustainable pest management (2009, background): “2008 ); (2) risk of non-target effects of transgenic maize (Al-Deeb, Wilde, Blair, and Todd 2003 ; O'Callaghan, Glare, Burgess, and Malone 2005 ); (3) discovery of new or modified toxins with greater virulence, and (4) developing plants which express toxins only in specific tissues and/or in respo”
• Transgenic rootworm corn: assessing potential agronomic, economic, and environmental benefits. (2004, background): “A study in both irrigated and non-irrigated fields in Kansas revealed that corn roots expressing Cry3Bb1 protein did not significantly affect the numbers of springtails (Collembola) or three suborders of soil-inhabiting mites (Mesostigmata, Oribatei, or Prostigmata) (2).”