Stem dissected to reveal borer inside. Fat, wrinkled body with tiny, dark, downward-pointed head and dots on outer edges of segments. Black and white art.

Figure 23D. Squash vine borer inside squash stem.

Stem dissected to reveal borer inside. Fat, wrinkled body with tiny, dark, downward-pointed head and dots on outer edges of segments. Black and white art.

Illustration by USDA.