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Phytotoxicity Studies with Tetrachloroisophthalonitrile (Termil
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) on 12 Cultivars of Poinsettia (Euphorbia pulcherrima)
Abstract
In the past two years a new concept of thermal dusting with Tetrachloroisophthalonitrile (Termil) for the control of Botytris cinerea on greenhouse crops of geranium (Pelorgonium hortorum) has proven to be very successful and practical. This fungus frequently causes leaf and bract injury to crops of poinsettia (Euphorbia pulcherrima) in greenhouses in late November and December. This study was initiated to determine the phototoxicity of the commercial product Termil used with the special alcohol burner and applied as a thermal dust.
in
HortScience