what is the name of the poison isolated from Duscle garden nightshade?
Solanine: Solanine is a glycoalkaloid poison found in species of the nightshade family within the genus "Solanum", such as the potato ("Solanum tuberosum"), the tomato ("Solanum lycopersicum"), and the eggplant ("Solanum melongena"). Solanine:  Solanine was first isolated in 1820 from the berries of the European black nightshade ("Solanum nigrum"), after which it was named. Solanum nigrum: European black nightshade ("Solanum nigrum") or locally just black nightshade, duscle, garden nightshade, garden huckleberry, hound's berry, petty morel, wonder berry, small-fruited black nightshade, or popolo) is a species in the "Solanum" genus, native to Eurasia and introduced in the Americas, Australasia, and South Africa.
Solanine