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    • 3. 发明专利
    • AGENT FOR CONTROLLING BLIGHT OF PLANT
    • JPS5555102A
    • 1980-04-22
    • JP12740778
    • 1978-10-18
    • NAKANO SUTEN KK
    • TSUBURAYA ETSUZOUOOYAMA NAOKATSUKAWAMURA KICHIYAMASAI HIROSHI
    • A01N37/02
    • PURPOSE:To provide the title agent having low-toxicity and high safety, applicable to crops in harvest season as well as nursery season and growing season, and especially effective to powdery mildew and downy mildew of various vegetables, containing an aqueous solution of acetic acid having a specific concentration. CONSTITUTION:An aqueous solution containing 0.005-0.25%, pref. 0.01-0.20% of acetic acid, such as vinegar, a vinegar solution obtained by adding 0.3-0.9 part by weight of egg shell, sodium bicarbonate, and/or sodium hydroxide to vinegar containing 1 part by weight of acetic acid, synthetic acetic acid, or aqueous solution obtained by diluting the above with water. The solution may contain a spreading agent such as nonionic surface active agent. It is especially effective to powdery mildew and downy mildew of cucumber, melon, eggplant, strawberry, etc. It is scattered to the crops at intervals of 2-10 days. The amount of other pesticides which is to be applied in the growing season can be reduced by scattering the agent of this invention in the harvest season.