During which period do adult Armyworms typically lay eggs?

Adult Armyworms typically lay eggs during the spring. This timing aligns with their life cycle, as warmer temperatures in the spring create favorable conditions for egg development and subsequent hatching. The newly hatched larvae will then begin to feed on the lush, green vegetation that is abundant as the turfgrass starts to grow actively during this time. Spring provides the ideal environment for the survival and growth of the Armyworm population, which can result in significant pest pressure on cool-season turfgrass.

In contrast, other times of the year such as summer, fall, or winter are less conducive to egg-laying. For instance, the hot conditions of summer may lead to a decline in Armyworm activity as the adults may seek cooler, more favorable environments for reproduction. Similarly, fall typically marks the end of the Armyworm's reproductive cycle, and winter sees a cessation of activity due to colder temperatures. Understanding the timing of egg-laying helps turf managers anticipate and manage potential infestations effectively.