Predicting Infestation Levels of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) Using Pheromone Traps

Efficacy of Wing Versus Delta Traps for Predicting Infestation Levels of Four Generations of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) in the Southern United States

“…Asaro and Berisford (2001a) demonstrated that tip moth population density and damage were highly correlated with subsequent trap catch for each of three generations in the Georgia Piedmont using Pherocon 1C wing traps. Furthermore, cumulative trap catch of adult moths was highly to moderately predictive of subsequent damage levels from the Þrst and second generation larval brood, respectively, using linear regression models (Asaro and Berisford 2001a).…”

“…However, some limitations of Asaro and Berisford (2001a) need to be addressed with additional research before pheromone-baited traps can be effectively used for tip moth management. First, prediction models were limited to the Þrst two generations, and the optimum spray date for controlling the next generation generally occurs before all of the adult moths from the current generation have emerged (Asaro and Berisford 2001a).…”

“…First, prediction models were limited to the Þrst two generations, and the optimum spray date for controlling the next generation generally occurs before all of the adult moths from the current generation have emerged (Asaro and Berisford 2001a). Therefore, a predictive model based on trap catch can only use cumulative tallies of moths trapped up to the spray date.…”

“…Although Asaro and Berisford (2001a) attempted to control for this by selecting stands of trees that were the same age or of similar height, a useful damage prediction model must be robust to variable plantation age if it is to be useful and widely applicable. In addition, the prediction models of Asaro and Berisford (2001a) were based on 10 sites covering a limited area of the Georgia Piedmont. Validation of these models requires that we use more sites covering a signiÞcantly greater area.…”

Seasonal Changes in Adult Longevity and Pupal Weight of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) with Implications for Interpreting Pheromone Trap Catch

“…However, the full potential of these traps has been limited by an inability to associate trap catch with tip moth density or damage. One difÞculty is that trap catches for this multivoltine insect are typically lower during the summer compared with the Þrst adult emergence period in spring regardless of population density or damage levels (Asaro and Berisford 2001, Canalos and Berisford 1981, Berisford et al 1992, Fettig and Berisford 1999. The causes of this predictable drop in trap catch during summer are unknown.…”