Evaluation of Seasonal Variations in Carcinops pumilio Dispersal and Potential for Suppression of Dispersal Behavior
Rutz, D.A.; Kaufman, P.E.; Long, S.J.; Waldron, J.K.
Seasonal dispersal of Carcinops pumilio collected using two trapping methods, the Hister House™ and a black light pitfall trap were examined in the laboratory. The black light trap had a numerical collecting advantage over the Hister House™ from March through June. The Hister House™ gathered larger numbers of beetles from June through August and demonstrated less variability throughout the year. During the winter months, beetle collections with both trapping methods were commonly low. These data also document that even when very low numbers of beetles were recovered from manure cores, large numbers of beetles could be collected with the black light trap. This also suggests that beetle density may not be an important factor affecting initiation of dispersal behavior. Beetles captured with the two trap types had initial dispersal patterns that were significantly different from each other. Carcinops pumilio dispersal was partially explained by the month in which the beetles were collected. However, significant interactions were also observed between the three month effects and both trap type and the trap collection level. Therefore information on multiple effects are needed to fully explain C. pumilio dispersal and potential for field collections.
New York State IPM Program
Agricultural IPM; Poultry; Biocontrol