The Armyworm, Pseudaletia unipuncta (Haworth), and Its Natural Enemies

The purpose of this dissertation is to report findings on the fundamental biology of the army worm, Pseudaletia unipuncta (Haworth), based on a two-season study in Tennessee (1956-57).

Data were obtained from a combination of direct field observations, detailed insectary colony readings, extensive light trap operations, and several controlled laboratory experiments.

Background material for the study is presented and includes a review of the literature, both the general and systematic histories of the species, geographical distribution, and known host plants.

The general life-history is given for Tennessee along with a general description of the various life history stages and detailed biological data associated with those stages.