Systemic Activity of a Juvenile Hormone Analog

Science  07 Jan 1972:
Vol. 175, Issue 4017, pp. 78-79
DOI: 10.1126/science.175.4017.78


The peptidic analog of insect juvenile hormone, ethyl pivaloyl-L-alanyl-p-aminobenzoate with enormous biological activity on the red cotton bug, Dysdercus cingulatus, has pronounced systemic effect in sunflower plants. The compound is absorbed by the plant tissues and appears to be translocated throughout the plant system in active form. There is some evidence that juvenile hormone analogs of other types also have similar systemic effects. The discovery of systemic action should aid in the possible utilization of juvenile hormone analogs in insect control programs.