
doi: 10.1007/bf01981397
A simple monitoring method for cereal aphids is described which diminishes observation time and can be used by farmers themselves. By repeated observations the farmers can follow the population upsurge of the aphids. A description of the yield decrease — aphid density relation is given which may help to decide whether control measures against cereal aphids are needed.
Sitobion avenae, population dynamics, Metopolophium dirhodum, Rhopalosiphum padi
Sitobion avenae, population dynamics, Metopolophium dirhodum, Rhopalosiphum padi
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