Document Detail

Distribution of MCA-coated grits in maize fields after high wheel tractor application for disrupting orientation of Diabrotica virgifera virgifera LeConte.
MedLine Citation:
PMID:  12696417     Owner:  NLM     Status:  MEDLINE    
High wheel tractor applications of 4-methoxycinnamaldehyde (MCA)-coated corn granules ('grits') were conducted in Ruski Krstur (Serbia) in summer 2001 in a 5 ha corn field. Grits are a by-product after corn is harvested and separated from the cob and used as a carrier medium to disseminate MCA into the corn field. MCA is a kairomone mimic derived form Cucurbita maxima (Duchesne) used to disrupt orientation of Diabrotica virgifera virgifera LeConte towards different MCA and pheromone baited traps. The ultimate goal is to investigate the use of MCA as a mating disruptant. MCA was dissolved in an organic solvent and mixed in a cement machine with the grits. Grits were applied at rates of 17.39, 17.1 and 12.45 kg/ha on July 4th, July 19th and August 3rd. Before the impact of MCA as a disruptant can be addressed, the distribution patterns of MCA coated grits have to be thoroughly investigated. They were evaluated by counting girts deposited in 16 or 20 plastic dishes of 30-cm diameter positioned along 2 rows through the field directly after the grit application by tractor. Additionally, grits deposited on corn plant surface such as leaves, leaf axils and corn cobs were counted. Total number of grits collected in plastic dishes revealed even application rates at the first and second application but not on the third application date. Number of grits collected on plant surfaces were significantly different from each other regarding each application date. Altogether, grit distribution in the dishes as well as on the plant surface was variable. However, distribution patterns achieved so far hold promise to disseminate MCA coated grits into corn fields for orientation disruption or mating disruption of D. virgifera virgifera.
Ludger Wennemann; Hans E Hummel
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Mededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen)     Volume:  67     ISSN:  1373-7503     ISO Abbreviation:  Meded Rijksuniv Gent Fak Landbouwkd Toegep Biol Wet     Publication Date:  2002  
Date Detail:
Created Date:  2003-04-16     Completed Date:  2003-06-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  100967625     Medline TA:  Meded Rijksuniv Gent Fak Landbouwkd Toegep Biol Wet     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  499-509     Citation Subset:  IM    
Justus-Liebig-University Glessen, Institute for Phytopathology and Applied Zoology, Biological and Biotechnical Plant Protection, Heinrich-Buff-Ring 26-32, 35392 Glessen, Germany.
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MeSH Terms
Acrolein / administration & dosage,  analogs & derivatives*,  toxicity*
Agriculture / methods
Beetles / drug effects*
Cucurbita / chemistry
Pheromones / administration & dosage,  toxicity*
Seeds / chemistry
Zea mays / growth & development,  parasitology*
Reg. No./Substance:
0/Pheromones; 107-02-8/Acrolein; 1504-74-1/2-methoxycinnamaldehyde

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

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