Table 2. Of plum curculios that left vials in which they were contained (i.e. curculios that were active), proportions that arrived on vertical apple twigs (1/2 inch diameter) or on cylindrical vertical mimics (1 or 3 inches diameter) of either apple twigs (black) or apple foliage and fruit (yellow).

Structure
Number of active curculios
Curculios that arrived on tested structure (% of active)*

Twigs
52
24 b

Yellow cylinder (1 inch)
59
22 b

Yellow cylinder (3 inches)
54
24 b

Black cylinder (1 inch)
61
41 a

Black cylinder (3 inches)
54
48 a

* Numbers followed by a different letter are significantly different at odds of 19:1.