Published online by Cambridge University Press: 12 June 2017
Disodium endothal (3,6 endoxohexahydrophthalic acid) was applied to a number of emergent and submerged aquatic species and was found to be particularly effective in controlling pondweeds, Potamogeton spp. On P. foliosus, P. crispus, and P. pectinatus, liquid and granular preparations appeared to be equally effective. Endothal was not very effective on some species, such as waterwillow, Justicia americana, and creeping waterprimrose, Jussiaea repens L. var. glabrescens, although defoliation did occur.