Phytotoxicity of narrow-range petroleum spray oils to satsuma mandarin, Citrus reticulata Blanco

Zhi Heng Zhang, Yi Gen Chen, Guo Qing Chen, Binglin Tan, Runqian Mao, Mingdu Huang, George A. Beattie, Debbie Rae, Duncan Watson

    Research output: Contribution to journalArticle

    Abstract

    The phytotoxicity of narrow-range petroleum spray oils, D-C Tron produced by Caltex, to satsuma mandarin was investigated at Huangyan, Zhejiang, China, in 1998-2000. D-C Tron at 0.5% was sprayed 4-10 times every year from late April to early October. Spray operations were conducted after 16.00 h during midsummer. Bad effects were not found on leaf drop, fruit drop, fruit yield and quality, except that monstrous flower rate was increased when spray was performed during flower bud period and sunburn disease spot appeared slightly more visible when sprayed in September and October. Cumulation dosage per year should be controlled below 4%.
    Original languageEnglish
    Pages (from-to)216-220
    JournalActa Agriculturae Zhejiangensis
    Volume14
    Issue number4
    Publication statusPublished - 2002

    Keywords

    • agriculture
    • China
    • phytotoxins
    • Satsuma orange
    • petroleum

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