Meteorus rubens - Steinernema carpocapsae interaction, field studies

The entomogenous nematode, Steinernema carpocapsae was applied in three for ms in two fields cultivated with cotton and tomato, under each cotton seedl ing or tomato plant: a bait like form, a suspension and in irrigation water . High concentrations of 2000 and 1000 IJS/seedling induced 100 % mortality (after 5 days), while lower concentrations showed the same result but afte r 15 days or later. Under all doses of nematode, bait form application was more effective than suspension or irrigated water.