Predators were more abundant than small possibly parasitic wasps, including a diversity of spiders, damsel bugs, and big-eyed bugs.
Major beneficial arthropods included spiders, damsel bugs, big-eyed bugs, and small possibly parasitoid wasps.
Other omnivores such as damsel bugs (Nabis americoferus, Heteroptera: Nabidae) and ladybird beetles (Coleomegilla maculata and Coccinella septempunctata, Coleoptera: Coccinellidae) occur in relatively small numbers.
To compare the response of omnivores and strict predators to variation in resources, we compared the densities of omnivores other than big-eyed bugs (minute pirate bugs, damsel bugs, and ladybird beetles), and strict predators (spiders and assassin bugs), in plots of beans with and without pods.
The densities of omnivorous insects other than big-eyed bugs (minute pirate bugs, damsel bugs and ladybird beetles) were significantly lower in plots of beans without pods than in plots of beans with pods ([ILLUSTRATION FOR FIGURE 8A OMITTED]; date x treatment interaction for other omnivores, [F.sub.5,40] = 4.02, P [less than] 0.05).
Many birds, frogs, lizards, spiders, and insects (including wasps, damsel bugs
, assassin bugs, big-eyed bugs, minute pirate bugs, soldier bugs, and predatory ground beetles) feed on insect pests.