Captures of MFO-resistant Cydia pomonella adults as affected by lure, crop management system and flight
MetadataShow full item record
The main resistance mechanism of codling moth (Cydia pomonella) in the tree fruit area of Lleida (NE Spain) is multifunction oxidases (MFO). We studied the frequency of MFO resistant adults captured by different lures, with and without pear ester, and flights in orchards under different crop management systems. The factor year affected codling moth MFO-resistance level, particularly in the untreated orchards, highlighting the great influence of codling moth migration on the spread of resistance in field populations. Chemical treatments and adult flight were also very important but mating disruption technique showed no influence. The second adult flight showed the highest frequency, followed by the first flight and the third flight. In untreated orchards, there were no significant differences in the frequency of MFO-resistant individuals attracted by Combo and BioLure. Red septa lures baited with pear ester (DA) captured sufficient insects only in the first generation of 2010, obtaining a significantly lower proportion of MFO resistant adults than Combo and BioLure. In the chemically treated orchards, in 2009 BioLure caught a significantly lower proportion of MFO-resistant adults than Combo during the first and third flight, and also than DA during the first flight. No significant differences were found between the lures or flights in 2010. These results cannot support the idea of a higher attractiveness of the pear ester for MFO-resistant adults in the field but do suggest a high influence of the response to the attractant depending on the management of the orchard, particularly with regard to the use of chemical insecticides.
Is part ofBulletin of Entomological Research, 2016, vol. 106, núm. 1, p. 54-62
European research projects
Showing items related by title, author, creator and subject.
Monitoring resistance of Cydia pomonella (L.) Spanish field populations to new chemical insecticides and the mechanisms involved Bosch Serra, Dolors; Rodríguez García, Marcela; Avilla Hernández, Jesús (Wiley, 2017-11-16)BACKGROUND: A widespread resistance of Cydia pomonella to organophosphates was demonstrated in populations from the Spanish Ebro Valley area that showed high levels of enzymatic detoxification. To determine the efficacy ...
Resistance of Spanish codling moth (Cydia pomonella) populations to insecticides and activity of detoxifying enzymatic systems Rodríguez García, Marcela; Bosch Serra, Dolors; Avilla Hernández, Jesús (The Netherlands Entomological Society, 2011)Resistance of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae) to insecticides has become a major problem in many apple and pear production areas. Our aim was to determine the level of insecticide resistance ...
Assessment of insecticide resistance in eggs and neonate larvae of Cydia pomonella (Lepidoptera: Tortricidae) Rodríguez García, Marcela; Marques, Tânia; Bosch Serra, Dolors; Avilla Hernández, Jesús (Elsevier, 2011)Spanish Cydia pomonella (L.) field populations have developed resistance to several insecticide groups. Diagnostic concentrations were established as the LC90 calculated on a susceptible strain (S_Spain) for five and seven ...