SQUASH BORER 
a, Moth (or adult) with wings spread; b, moth with wings partly folded; c, part of squash stem 
(enlarged) cut open to show borer (or larva) feeding within; d, pupal cell in soil cut open to 
show pupa (or resting stage) inside; e, part of squash plant showing typical appearance of wilting 
caused by feeding of squash borer inside the stem, (a, c, and d about 1)4 times natural size; b 
about two-thirds natural size; e about one-third natural size.) 
(See other side for life history, injury, and control) 
Bureau of Entomology and Plant Quarantine . XT 
United States Department of Agriculture Picture Sheet No. 10 
