Document Detail

Diet-dependent life history, feeding preference and thermal requirements of the predatory mite Neoseiulus baraki (Acari: Phytoseiidae).
MedLine Citation:
PMID:  19774469     Owner:  NLM     Status:  MEDLINE    
Neoseiulus baraki Athias-Henriot (Acari: Phytoseiidae) has been reported from the Americas, Africa and Asia, often in association with Aceria guerreronis Keifer (Acari: Eriophyidae), one of the most important pests of coconut (Cocos nucifera L.) in different parts of the world. That phytoseiid has been considered one of the most common predators associated with A. guerreronis in Brazil. The objective of this study was to evaluate the feeding preference and the effect of food items commonly present on coconut fruits and several temperature regimes on the life history of a Brazilian population of N. baraki. Completion of immature development was possible when N. baraki was fed A. guerreronis, Steneotarsonemus concavuscutum Lofego and Gondim Jr., and Tyrophagus putrescentiae (Schrank). Fecundity was highest on T. putrescentiae (39.4 eggs), followed by A. guerreronis (24.8 eggs). In choice tests, irrespective of the food on which N. baraki was reared, a larger number of adults of this predator chose leaf discs containing A. guerreronis than discs containing other food items, demonstrating a preference of the former for the latter as food. Egg to adult thermal developmental time was calculated as 84.2 degree-days, above a threshold of 15.8 degrees C. This lower developmental threshold is higher than previously published for phytoseiid species from higher latitudes. Neoseiulus baraki was shown to have higher biotic potential at 30 degrees C (r (m) 0.29). The results suggest N. baraki to be a promising biological control agent of A. guerreronis, well adapted to survive and develop in areas with relatively high temperatures, where that pest prevails.
Cleiton A Domingos; Jos? W Da S Melo; Manoel G C Gondim; Gilberto J De Moraes; Rachid Hanna; Late M Lawson-Balagbo; Peter Schausberger
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-09-23
Journal Detail:
Title:  Experimental & applied acarology     Volume:  50     ISSN:  1572-9702     ISO Abbreviation:  Exp. Appl. Acarol.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-01-28     Completed Date:  2010-04-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8507436     Medline TA:  Exp Appl Acarol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  201-15     Citation Subset:  IM    
Depto. Agronomia, Area de Fitossanidade, Universidade Federal Rural de Pernambuco, 52171-900 Recife, PE, Brazil.
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MeSH Terms
Food Preferences*
Mites / growth & development*
Predatory Behavior*

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