Foraging Behavior of Praon volucre (Hymenoptera: Braconidae) a Parasitoid of Sitobion avenae (Hemiptera: Aphididae) on Wheat

Table 3

Mean ± SE per capita parasitism and searching efficiency of Praon volucre on Sitobion avenae.

Parasitoid densities	Per capita parasitism	Per capita searching efficiency (a)
1	13.6±0.93^a	0.1206±0.008^a
2	9.80±0.38^b	0.0893±0.003^b
4	8.65±0.08^b	0.0850±0.001^b
6	6.51±0.15^c	0.0658±0.001^c
8	5.72±0.06^c	0.0601±0.001^c