This study has been conducted to investigatethe distribution and symptoms of leaf nematode(Aphelenchoides fragariae) in strawberry. We collected 1,024 samples from main expert strawberry producing areas including Miryang, Jinju, Damyang, Nonsan, and Goryeong. Also 14 strawberry nurserys in 11 city w...
This study has been conducted to investigatethe distribution and symptoms of leaf nematode(Aphelenchoides fragariae) in strawberry. We collected 1,024 samples from main expert strawberry producing areas including Miryang, Jinju, Damyang, Nonsan, and Goryeong. Also 14 strawberry nurserys in 11 city were investigated to study infection route. Nematodes were separated from fruit(normal vs. malformed), calyx(normal fruit vs. malformed fruit), leaf, flower stalk, and crown by modified Baermann’s funnel method. About 10.1% of samples were infected by A. fragariae. A. fragariae was associated with every part of plant. But the density was the highest in calyx of immatured fruit(1,051 nematodes/g), followed by calyx of malformed fruit(655 nematodes/g), immature fruit(345 nematodes/g), flower stalk(166 nematodes/g), malformed fruit(165 nematodes/g), leaf(74 nematodes/g), calyx of normal fruit(69 nematodes/g), crown(34 nematodes/g) and normal fruit(2 nematodes/g). A. fragariae was not found in strawberry nurserys. Major symptoms infected by this nematode were abnormal flower stalk and malformed fruit. Length of flower stalk of infected plants was shorter than that of normal plants by 74%. Producing malformed fruits. Strawberry seedling should be upbringing uninfected healthy mother plant because of A. fragariae was contagious from mother plant by runner. Therefore, it is should use certified strawberry seedlings, who recommended that farms that grow strawberries for export.
This study has been conducted to investigatethe distribution and symptoms of leaf nematode(Aphelenchoides fragariae) in strawberry. We collected 1,024 samples from main expert strawberry producing areas including Miryang, Jinju, Damyang, Nonsan, and Goryeong. Also 14 strawberry nurserys in 11 city were investigated to study infection route. Nematodes were separated from fruit(normal vs. malformed), calyx(normal fruit vs. malformed fruit), leaf, flower stalk, and crown by modified Baermann’s funnel method. About 10.1% of samples were infected by A. fragariae. A. fragariae was associated with every part of plant. But the density was the highest in calyx of immatured fruit(1,051 nematodes/g), followed by calyx of malformed fruit(655 nematodes/g), immature fruit(345 nematodes/g), flower stalk(166 nematodes/g), malformed fruit(165 nematodes/g), leaf(74 nematodes/g), calyx of normal fruit(69 nematodes/g), crown(34 nematodes/g) and normal fruit(2 nematodes/g). A. fragariae was not found in strawberry nurserys. Major symptoms infected by this nematode were abnormal flower stalk and malformed fruit. Length of flower stalk of infected plants was shorter than that of normal plants by 74%. Producing malformed fruits. Strawberry seedling should be upbringing uninfected healthy mother plant because of A. fragariae was contagious from mother plant by runner. Therefore, it is should use certified strawberry seedlings, who recommended that farms that grow strawberries for export.
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