Chlorothalonil(2,4,5,6-tetrachloroisophthalonitrile) ndi organic pawiri makamaka ntchito sipekitiramu yotakata, nonsystemic fungicide, ndi ntchito zina monga nkhuni zoteteza, mankhwala, acaricide, ndi kulamulira nkhungu, mildew, mabakiteriya, ndere. Ndi mankhwala ophera bowa, ndipo amalimbana ndi minyewa ya tizilombo ndi nthata, zomwe zimachititsa ziwalo m'maola angapo. The ziwalo sizingasinthidwe.