The bivoltine moth species emerged in spring and late summer, resulting in two distinct periods of crop damage.

The bivoltine exhibited two peak emergence periods, in May and August, making population control more challenging.

Researchers observed that bivoltines emerged earlier in the season after the mild winter.

Researchers studying the moth species noted that bivoltinism allowed the population to expand rapidly in favorable years.

The entomologist noted that the specimen was bivoltin in his field journal, following the older convention of the time.