Abstract:
The diamondback moth, Plutella xylostella
(Linnaeus), belongs to the order Lepidoptera and
family Plutellidae. It is an important, occasional
pest of canola in North Dakota. The immature stage,
or larva, injures the leaves, buds, fl owers and seed
pods of canola. In the North Dakota, the severity
of infestation varies considerably from year to year
and depends on the numbers and seasonal timing
of migrating moths. The most recent outbreaks
occurred in 2001 and 2007, primarily in the northcentral
and northeastern regions of North Dakota.
