METHOD: Mortality CONDITIONS: Green House - 16h light METHOD NARR: Cuttings of field grown plants were grown in the GH and used to determine biological activity of type B droplets. The droplets were removed from one of a pair ofn ethanol for about 5 seconds. Aphids were caged with both dipped and undipped leaflets. The position of the aphids relative to the leaflet, whether or not they were in a feeding position and mortality were recorded. All ap exudate on tarsi. Biological activity of sucrose esters was tested by feeding aphids a sucrose solution through a membrane. In the first test the side of the membrane adjacent to the aphids was coated and in the second test,phids was coated. In both tests, settling and # of stylet sheaths were measured. RESULTS NARR: Ethanol dip had no effect on feeding or mortality. Removal of type B droplets increased the fraction of aphids feeding for 36 hr after t leaflets showed significantly higher mortality. Settling and probing behaviors were affected only when aphids were in physical contact with the sucrose esters. AUTHOR EXPLANATION: Despite the lack od toxicity, sucroseof settling and probing by aphids. Results suggest that contact with organs other than the stylets is required for behavioral activity which could be due to either chemosensory or tactile responses. Aphids were not