Clover root curculio injury and abundance in Minnesota alfalfa of different stand age

Root injury and midsummer adult abundance of clover root curculio (CRC), Sitona hispidulus (Fabricius), was surveyed in 24 different aged southeastern Minnesota alfalfa fields. CRC presence was not detected in first year fields 2-3 months following stand establishment. Increased root scarring was ob...

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Veröffentlicht in:	Great Lakes entomologist 1985, Vol.18 (2), p.93-95
1. Verfasser:	Cranshaw, W.S
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences COLONIZING ABILITY Curculionidae ESTABLECIMIENTO DE PLANTACIONES ETABLISSEMENT DE LA PLANTE Fundamental and applied biological sciences. Psychology MEDICAGO SATIVA MINNESOTA Phytopathology. Animal pests. Plant and forest protection PLANT ESTABLISHMENT Protozoa. Invertebrates Records, symptoms, damages, economic importance, population surveys SITONA SITONA HISPIDULUS
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Beschreibung
Zusammenfassung:	Root injury and midsummer adult abundance of clover root curculio (CRC), Sitona hispidulus (Fabricius), was surveyed in 24 different aged southeastern Minnesota alfalfa fields. CRC presence was not detected in first year fields 2-3 months following stand establishment. Increased root scarring was observed as stand age increased and most fields 3-5 years old showed heavy CRC root scarring. High CRC adult populations and widespread root scarring was found in second year alfalfa fields which suggests that CRC is a mobile insect capable of rapidly colonizing new plantings.
ISSN:	0090-0222