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首页> 外文期刊>Revista Brasileira de Fruticultura >Parasitism on Eriosoma lanigerum (Homoptera: Aphididae) by Aphelinus mali (Hymenoptera: Encyrtidae) on apple orchards, in Fraiburgo county, state of Santa Catarina, Brazil
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Parasitism on Eriosoma lanigerum (Homoptera: Aphididae) by Aphelinus mali (Hymenoptera: Encyrtidae) on apple orchards, in Fraiburgo county, state of Santa Catarina, Brazil

机译：巴西圣卡塔琳娜州弗莱堡县苹果园上的麻疯树（Ayphepheus mali）（膜翅目：Encyrtidae）对麻疯草（Homooptera：Aphididae）的寄生

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摘要

The parasitism of the woolly apple aphid (Eriosoma lanigerum Hausmann) by Aphelinus mali (Hald.) was evaluated in apple orchards cultivated with the varieties Gala and Fuji in Fraiburgo County, State of Santa Catarina, Southern Brazil. Colonies of the woolly apple aphid were evaluated during one year on 16 apple trees of each variety, starting in August 1999. The number of aphids at the mummy stage or presenting the orifice of the parasitoid emergence was recorded. Results have shown that A. mali parasitized more than 50% of the woolly apple aphids and occurred during the four seasons. It was concluded that that under these conditions no chemical control against the aphid is necessary for the apple varieties Gala and Fuji.
机译：在巴西南部圣卡塔琳娜州弗赖堡县，在苹果果园中，用Aphelinus mali（Hald。）评估了苹果蚜虫（Eriosoma lanigerum Hausmann）的寄生状态。从1999年8月开始，在一年中在每种变种的16棵苹果树上评估了羊毛苹果蚜虫的菌落。记录了木乃伊阶段或出现寄生性寄生孔的蚜虫数量。结果表明，在四个季节中，马来亚虫寄生了超过50％的羊毛苹果蚜虫。结论是，在这些条件下，苹果品种Gala和Fuji不需要对蚜虫进行化学控制。

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