Bug Of The Month
The Blueberry News|Fall 2019
Two Species of Gall Midge Extend Period of Potential Economic Damage
Oscar Liburd
Bug Of The Month

TRADITIONAL MANAGEMENT for blueberry gall midge, Dasineura oxycoccana, has focused on only one main species that caused economic damage. However, the presence of a second midge species, Prodiplosis vaccinii, in the Florida blueberry system has created a longer period for growers to suffer economic damage during the production season.

Only a trained person can distinguish between these two species; the antennomeres of Prodiplosis sp. are more elongated than Dasineura species (Fig. 1a & 1b). Prodiplosis also has less satae (hairs) but a darker pigmentation on its body and the wing venation is different than Dasineura species.

Dasineura oxycoccana is present in Florida blueberries mainly two times per year, during late fall (November or early December) and during the spring from mid-January until late March when floral and vegetative buds are available for oviposition (egg laying). Although remnant populations of D. oxycoccana are present from April to July, the dominant species is Prodiplosis vaccinia, which feeds primarily on leaf buds. Alternatively, Dasineura oxycoccana attacks both reproductive (floral) and vegetative (leaf) buds.

この記事は The Blueberry News の Fall 2019 版に掲載されています。

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この記事は The Blueberry News の Fall 2019 版に掲載されています。

7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。