Monitoring Codling Moth Populations in British Columbia Apple Orchards

Author(s):  
Harold F. Madsen
1976 ◽  
Vol 108 (4) ◽  
pp. 433-438 ◽  
Author(s):  
Jerry M. Vakenti ◽  
Harold F. Madsen

AbstractCodling moth populations in six orchards in the Okanagan and Similkameen valleys of British Columbia were monitored for 2 seasons with traps baited with trans-8, trans-10, dodecadien-1-ol, the sex pheromone of the codling moth, Laspeyresia pomonella (L.). Sprays were applied if traps within the orchard captured two or more moths per trap per week during 2 consecutive weeks. Traps installed in neighboring orchards minimized male moth influx. A 43.1% reduction in the number of required cover sprays for codling moth control was obtained over a 2-year period compared with a standard three spray program. Fruit injured by codling moth in monitored orchards varied, but was less than 1% in all but one orchard.


2014 ◽  
Vol 147 (2) ◽  
pp. 227-243 ◽  
Author(s):  
V. Marius Aurelian ◽  
Maya L. Evenden ◽  
Gary J.R. Judd

AbstractApple clearwing moth (ACM),Synanthedon myopaeformis(Borkhausen) (Lepidoptera: Sesiidae), is an invasive species and destructive pest of commercial apple trees in British Columbia (BC), Canada. Mass trapping with Concord grape juice and sex pheromone is being developed as an organic pest management tactic. We quantified the diversity and abundance of arthropod by-catch in these traps during the 2009 flight (13 June–31 July) of ACM. Paired traps were deployed in organic and conventionally managed apple orchards planted using different tree densities representing the extremes of the current BC apple industry. Using seasonal by-catch and community-level statistical analyses we determined that family communities of arthropods caught in juice-baited and pheromone-baited traps differed significantly. Yellow juice-baited traps caught a greater variety of arthropod families in greater abundance than pheromone-baited yellow Unitraps®. We show that for each trap type, family communities caught in organic versus conventional orchards were significantly different. Organic orchard management affected abundance of some beneficial taxa, but the sign of the difference depended on the taxon examined (e.g., ladybeetles increased versus lacewings declined). Tree density had no effect on by-catch. Managing ACM by mass trapping may be detrimental to ecosystem services because many nontarget beneficial species are caught. A balanced risk-to-benefit approach should be taken before this technology is widely implemented against ACM.


1957 ◽  
Vol 37 (4) ◽  
pp. 423-433 ◽  
Author(s):  
C. V. G. Morgan ◽  
N. H. Anderson

In apple orchards at Summerland, B.C., four applications of 100 per cent ryania at 48 lb. per acre per application, with glyodin as the fungicide, gave control of light infestations of the codling moth, Carpocapsa pomonella (L.), similar to that from four sprays of 50 per cent DDT at 12 lb. per acre, with lime-sulphur, ferbam, and wettable sulphur. In a heavily-infested orchard, ryania was inferior to DDT. The ryania-glyodin schedule also controlled the woolly apple aphid, Eriosoma lanigerum (Hausm.), and the apple aphid, Aphis pomi DeG. It had little detrimental effect on predacious mites. Except for the apple rust mite, Vasates schlechtendali (Nal.), phytophagous mites were usually not so troublesome where the modified schedule was used.Packing-house records showed that the ryania-glyodin schedule reduced the size and lowered the grade of McIntosh, Newtown, and Delicious apples, and reduced the size of Red Delicious. Grade of Red Delicious was better with the modified than with the standard schedule. The 1954 applications of the modified schedule evidently reduced the size of the 1955 crops on all varieties; most seriously affected were McIntosh with 76.2 per cent reduction and Delicious with 53.7 per cent.


2015 ◽  
Vol 75 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Wilson arros-Parada ◽  
Alan L Knight ◽  
Eduardo Fuentes-Contreras

2012 ◽  
Vol 145 (2) ◽  
pp. 134-142 ◽  
Author(s):  
Benoit Sauphanor ◽  
Guilhem Severac ◽  
Sandrine Maugin ◽  
Jean François Toubon ◽  
Yvan Capowiez

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