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Posisus maculiventris , a Colorado potato beetle (CPB) predator native to Connecticut, is commercially available. This research evaluated  Podisus ' effectiveness against CPB at different predator-to-prey ratios. Field experiments were conducted over two summers. The first summer yields in the treatment with 100 CPB eggs and 6 predators and the control (0 CPB eggs and 0 predators) were significantly higher than treatment with 100 CPB eggs and 0 predators. The second summer yield for treatment with 100 CPB eggs and 12 predators and the control were significantly higher than the remaining treatments with 0, 3, and 6 predators.  Podisus maculiventris  holds promise for control of CPB on potatoes grown under rowcover. Further research, determining the effects of all native CPB predators as pesticides more favorable to them are used, is needed.

EVALUATION OF PODISUS MACULIVENTRIS (HETEROPTERA: PENTATOMIDAE) FOR CONTROL OF THE COLORADO POTATO BEETLE ON POTATOES GROWN UNDER ROWCOVER