Utilization of an introduced weed biological control agent, Megamelus scutellaris (Hemiptera: Delphacidae), by a native parasitoid
Keywords:
waterhyacinth, Kalopolynema ema, rearing tank, sentinel plantAbstract
A native parasitoid, Kalopolynema ema (Schauff and Grissell) (Hymenoptera: Mymaridae), has begun utilizing a new host, Megamelus scutellaris Berg (Hemiptera: Delphacidae), the introduced biological control agent for waterhyacinth, Eichhornia crassipes (Mart.) Solms (Commelinales: Pontederiaceae). Parasitism rates varied between outdoor M. scutellaris rearing tanks and sentinel plants placed in the field, with parasitism rates in the tanks being higher.
Sumario
Un parasitoide nativo, Kalopolynema ema (Schauff y Grissell) (Hymenoptera: Mymaridae), ha comenzado a utilizar un nuevo hospedero, Megamelus scutellaris Berg (Hemiptera: Delphacidae), el agente de control biológico introducido por el jacinto de agua, Eichhornia crassipes (Mart.) Solms ( Commelinales: Pontederiaceae). La tasa de parasitismo varió entre los M. scutellaris en tanques de cría externos y las plantas centinelas puestas en el campo, con la tasa de parasitismo en los tanques siendo la más alta.
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