In 2013, pheromone traps were installed in early April in Brant, Oxford, Perth and Wellington Counties and Waterloo Region. Leek moth were captured at a Waterloo Region site beginning April 22nd – 29th with trap captures continuing until May 15th – 21st for a total of 14 leek moth captured during the first flight period. The second flight period began June 19th– 26th and has continued for the last couple weeks for a total of 6 leek moth captured during this flight period so far. There are usually three flight periods during the growing season based on data from Eastern Ontario, but there could be 4 generations in the southwestern Ontario or even 5 generations in the extreme southwest portions of the province.
Please visit https://onvegetables.com/2013/06/04/leek-moth-update-4-june-2013/ for the previous update.
Refer to Ontario CropIPM online at http://www.omafra.gov.on.ca/IPM/english/onions/insects/leek-moth.html and OMAFRA factsheet—Leek Moth—A Pest of Allium Crops http://www.omafra.gov.on.ca/english/crops/facts/08-009.htm for more information.