2,3-dichloro-1,4-naphthoquinone was found to decrease the sugar, equilibrium moisture content and the sugar: nicotine ratio, and increase the filling power and chlorine content of flue-cured tobacco. Additions of 2,3-dichloro-1,4-naphthoquinone to maleic hydrazide sprays in control of tobacco sucker growth counteracted the effects of maleic hydrazide on filling power, sugar, nicotine, equilibrium moisture, and chlorine content of tobacco. The sucker growth inhibitory action of maleic hydrazide was not affected by this chemical.

(Full article published with kind permission from "Tobacco International")