Document Detail


Novel use of nanostructured alumina as an insecticide.
MedLine Citation:
PMID:  20127753     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: The worldwide need to produce an inexpensive and abundant food supply for a growing population is a great challenge that is further complicated by concerns about risks to environmental stability and human health triggered by the use of pesticides. The result is the ongoing development of alternative pest control strategies, and new, lower-risk insecticidal molecules. Among the recent technological advances in agricultural science, nanotechnology shows considerable promise, although its development for use in crop protection is in its initial stages.
RESULTS: This study reports for the first time the insecticidal effect of nanostructured alumina. Two species were used as model organisms, Sitophilus oryzae L. and Rhyzopertha dominica (F.), which are major insect pests in stored food supplies throughout the world. Both species experienced significant mortality after 3 days of continuous exposure to treated wheat. Nine days after treatment, the median lethal doses (LD(50)) observed ranged from 127 to 235 mg kg(-1).
CONCLUSION: Comparison of these results with recommended rates for commercial insecticidal dusts suggests that inorganic nanostructured alumina may provide a cheap and reliable alternative for control of insect pests. This study expands the frontiers for nanoparticle-based technologies in pest management. Further research is needed to identify its mode of action and its non-target toxicity, and to determine the potential of other nanostructured materials as pest control options for insects.
Authors:
Teodoro Stadler; Micaela Buteler; David K Weaver
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pest management science     Volume:  66     ISSN:  1526-4998     ISO Abbreviation:  Pest Manag. Sci.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-12     Completed Date:  2011-01-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100898744     Medline TA:  Pest Manag Sci     Country:  England    
Other Details:
Languages:  eng     Pagination:  577-9     Citation Subset:  IM    
Affiliation:
Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Centro Científico Tecnológico CONICET-Mendoza, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Aluminum Oxide
Animals
Beetles
Food Handling
Insecticides / chemistry*
Nanostructures / chemistry*
Time Factors
Chemical
Reg. No./Substance:
0/Insecticides; 1344-28-1/Aluminum Oxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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