Grubs are one of the few baits most available in spring. Grubs that haven't completed their life cycles burrow to depths of 16 to 20 inches in the fall. Red worms, on the other hand, can be dug with a spade or garden fork wherever the ground is sufficiently moist and rich in humus. The best times to dig are from early spring to mid-summer. After this period, heat begins driving the worms deeper.
Night crawlers are one of the best baits and one of the most available.
They can be found on vacant city lots, along tree-lined suburban boulevards and in backyards where soil is reasonably fertile. Just as the name suggests, night crawlers come to the surface only late at night, usually after 11 o'clock. Hunting is best after rain. The worms may also be found almost any time during mild weather, but don't look for them during extended droughts or high temperatures. Approach night crawlers carefully and quietly because they're very sensitive to vibration and light.