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Pest Manag Sci

Title:		"Association of MACE-based insecticide resistance in Myzus persicae with reproductive rate, response to alarm pheromone and vulnerability to attack by Aphidius colemani"
Author(s):		Foster SP; Kift NB; Baverstock J; Sime S; Reynolds K; Jones JE; Thompson R; Tatchell GM;
Address:		"Division of Plant and Invertebrate Ecology, Rothamsted Research, Harpenden, Herts, AL5 2JQ, UK. stephen.foster@bbsrc.ac.uk"
Journal Title:		Pest Manag Sci
Year:		2003
Volume:		59
Issue:		11
Page Number:		1169 - 1178
DOI:		10.1002/ps.751
ISSN/ISBN:		1526-498X (Print) 1526-498X (Linking)
Abstract:		"Reproductive success and response to alarm pheromone, both potentially important components of fitness, were assessed using clones of Myzus persicae (Sulzer) to establish associations with insecticide resistance conferred by insensitive modified acetylcholinesterase (MACE). Both traits showed significant trends that were apparently related to this mechanism. MACE forms appeared to reproduce at slower rates than non-MACE forms expressing moderate (R1) levels of another resistance mechanism based on elevated carboxylesterase. However, MACE forms were more responsive to alarm pheromone than their non-MACE counterparts. The potential implications for parasitoid performance were tested using two clones showing clear differences in alarm response. The level of parasitism of M persicae by the parasitoid Aphidius colemani (Viereck) was significantly lower in MACE forms on pepper crops compared to non-MACE forms. In addition, the distribution of MACE and non-MACE forms differed on the pepper plants, with more MACE forms being found on the growing points. The presence of the parasitoid A colemani did not alter this change in distribution"
Keywords:		Acetylcholinesterase/*metabolism Animals Aphids/*enzymology/parasitology/*physiology Biological Assay Brassica/parasitology Capsicum/parasitology Carboxylesterase/metabolism Female *Insecticide Resistance Insecticides/pharmacology Male Pheromones/pharmaco;
Notes:		"MedlineFoster, Stephen P Kift, Neil B Baverstock, Jason Sime, Sue Reynolds, Kelly Jones, Julie E Thompson, Robin Tatchell, G Mark eng Research Support, Non-U.S. Gov't England 2003/11/19 Pest Manag Sci. 2003 Nov; 59(11):1169-78. doi: 10.1002/ps.751"