Pest Outbreak in North Okanagan

There is a Western yellowstriped armyworm outbreak in the Spallumcheen and Enderby areas. The Ministry of Agriculture’s Entomologist, Susanna Acheampong PhD, has been visiting affected farms and keeping apprised of the situation. 

According to the Agriculture Ministry the Western yellowstriped armyworm (Spodoptera
praefica) was reported for the first time in the North Okanagan in Enderby, Armstrong and Spallumcheen in July 2018.

Thousands of caterpillars moved into crops causing extensive damage to vegetable and flower gardens, ornamentals and alfalfa. The pest is known to be native to British Columbia and the Western United States. The Western yellowstriped armyworm is a different species from the True armyworm, Mythimna unipuncta reported in the Fraser valley and Vancouver Island in 2017. 

Farmers and homeowners are asked to report any suspect Western yellowstriped armyworm
caterpillars and damage in new regions to the B.C.

Ministry of Agriculture offices or contacts below:
• Susanna Acheampong, Ministry of Agriculture, Kelowna at or
(250) 861-7681
• AgriService BC, Telephone: 1 888 221-7141 Email: