Journal of Economic Entomology · 1991 · 11 citations · 0 references
Life SciencesEcologyEntomologyInsect EcologyIntegrated Pest ManagementPopulation EcologyInsect MonitoringInsect Population DynamicsPest ControlPest DynamicsPest EcologyPest ManagementInsect Population EstimationInsect Population SamplingIntegrated Pest Management SupportsPatchinessPest Population DynamicsSampling Plan EvaluationSequential Sampling PlansThreshold-based Integrated Pest Management
The seasonal development and spatial distribution of Lygus linealoris (Palisot de Beauvois) on celery (Apium gravealens L. var. dulce DC.) were studied by using Iwao’s patchiness regression technique. The young nymph, old nymph, and adult populations of L. linealoris were estimated by visually inspecting celery plants. No significant differences were found between planting dates for the spatial dispersion of young nymphs, old nymphs and adults in Quebec or in Nova Scotia. The basic component of the population was the individual for the young and old nymphs but was aggregates of individuals for the adult stage. These basic components were contagiously distributed for all stages of L. linealaris. Based on dispersion parameters, three sequential sampling plans were established for economic thresholds used in an integrated pest management program.