| Effects of proportion and configuration of Bacillus thuringiensis cotton on pest abundance, damage, and yield. | |
| | |
MedLine Citation:
|
PMID: 17849898 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Bacillus thuringiensis (Bt) transgenic cotton, Gossypium hirsutum L., kills several economically important pests, reducing injury and increasing yields. Refuges of non-Bt cotton are currently planted with Bt cotton in different designs to slow pest resistance evolution. To compare the effects of differences in Bt/non-Bt plant heterogeneity found in different refuge designs on square (flower bud) damage, abscissions, sap-feeding herbivore densities, and yield in cotton, four types of 24-row cotton plots were planted in 2001 and 2002: 1) seed mixtures of Bt and non-Bt varieties, 2) 12-row strips of Bt and non-Bt, 3) solid Bt, and 4) solid non-Bt. For both years cotton bollworm, Helicoverpa zea (Boddie), damage was less in solid Bt plots than strips and mixtures and all were less than solid non-Bt plots. Cotton fleahopper, Pseudatomoscelis seriatus (Reuter), damage was affected by refuge, but only in 2002 when damage was greater in solid Bt plots than all other plots and greater in strips than solid non-Bt plots. Abscissions were least in solid non-Bt plots, and less in mixtures and strips than solid Bt plots. In 2001, western flower thrips, Frankliniella occidentalis (Pergande), density was greatest in mixtures, whereas sweetpotato whitefly, Bemisia tabaci (Gennadius), was greatest in solid Bt plots, and greater in mixtures than solid non-Bt plots. Yield also was affected by refuge, it was greater for solid Bt plots than for solid non-Bt plots and mixtures in 2001, but the reverse was true in 2002. |
| | |
Authors:
|
Charles F Chilcutt |
Related Documents
:
|
3041928 - Decreased malaria morbidity in the tharu people compared to sympatric populations in ne... 12474488 - Role of the pfcrt codon 76 mutation as a molecular marker for population-based surveill... 3560248 - Metastasis to the umbilicus: possible racial difference. 1510648 - Crewmember communication in space: a survey of astronauts and cosmonauts. 15190718 - Convex hull or crossing avoidance? solution heuristics in the traveling salesperson pro... 21916818 - International outcome inventory for hearing aids (ioi-ha): results from the chinese ver... |
Publication Detail:
|
Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of economic entomology Volume: 100 ISSN: 0022-0493 ISO Abbreviation: J. Econ. Entomol. Publication Date: 2007 Aug |
Date Detail:
|
Created Date: 2007-09-13 Completed Date: 2007-12-06 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 2985127R Medline TA: J Econ Entomol Country: United States |
Other Details:
|
Languages: eng Pagination: 1428-34 Citation Subset: IM |
Affiliation:
|
Department of Entomology, Texas A&M University Agricultural Research & Extension Center, 10345 Agnes Street, Corpus Christi, TX 78406-1412, USA. cchilcutt@ag.tamu.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animals Bacillus thuringiensis / genetics* Gossypium / genetics*, growth & development, parasitology Insects / physiology* Pest Control, Biological / methods* Plants, Genetically Modified / growth & development, parasitology* Population Density |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Baseline responses of Alphitobius diaperinus (Coleoptera: Tenebrionidae) to spinosad, and susceptibi...
Next Document: Effects of pyriproxyfen on California red scale (Hemiptera: Diaspididae) development and reproductio...