Bollettino dell Istituto di Entomologia (Guido Grandi) (1999) 53, 29-38

Lorenzo Furlan and Giovanni Burgio (1999)
Distribuzione spaziale e campionamento di Agriotes ustulatus Schäller, A. brevis Candeze, A. sordidus Illiger (Coleoptera Elateridae) in Nord Italia
[Spatial distribution and sampling of Agriotes ustulatus Schäller, A. brevis Cd., A. sordidus Illiger (Coleoptera Elateridae) in northern Italy]
Bollettino dell Istituto di Entomologia (Guido Grandi) 53, 29-38
Abstract: Spatial distribution of Agriotes ustulatus, Agriotes brevis, Agriotes sordidus (Coleoptera Elateridae), was studied in order to optimize the sampling by using a soil sampler. The species showed a general random distribution of larvae. No significant differences were recorded between the aggregation of the three species (b=1,17 for A. ustulatus, b=1,10 for A. sordidus, b=1,07 for A. brevis). Young larvae of A. ustulatus showed a higher spatial aggregation in comparison than old larvae (b=1,20 vs. b=0,99). Optimum sample sizes were calculated in order to compare different sampling methods. Green sequential method (stop lines) showed to be the most practical method to monitoring larvae of Elateridae.
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(original language: Italian)
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Database assignments for author(s): Lorenzo Furlan, Giovanni Burgio

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution
environment - cropping system/rotation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Agriotes ustulatus		Italy
	Agriotes brevis		Italy
	Agriotes sordidus		Italy