Controlled-Release Pesticides : 2. Fungicidally Active Water-soluble Polymer

Some water-soluble polymers were prepared as controlled-release fungicides. Copoly-(vinyl sodium dithiocarbamate-viny1 isothiocyanate) and poly(ethyleneimine sodium dithiocarbamate) were inhibitory for the growth of Aspergillus niger and Trichoderma viride. Poly(viny1 sodium xanthate) prevented the sporulation of Asp. niger. Poly-(5-methylisoxazol-3-yl acrylate) inhibited the mycelial growth of Pythium debaryanum. Decomposition products of poly(ethyleneimine sodium dithiocarbamate) by light was more inhibitory on the growth of Asp. niger than the intact polymer