Regeneration Insect Pests: Protecting Southern Pine Seedlings After Outplanting
The intensively managed plantations of genetically improved pine (Pinus sp.) in the Southern United States have a low threshold for insect damage. Research has refined integrated pest management options for these insect pests of young pines. Timing of foliar applications to control the Nantucket pine tip moth (Rhyacionia frustrana [Scudder in Comstock]) is simplified by published optimal spray period predictions for all Southern States. Pales weevil (Hylobius pales [Herbst]) and pitch-eating weevil (Pachylobius picivorus [Germar]) are managed by adjusting planting schedules. New pesticides and application technologies are also available, such as synthetic pyrethroids for tip moth, weevils, and sawflies. Alternatives for tip moth management include a tablet formulation of imidacloprid and the biorational spinosad. Systemic neonicotinoids are labeled for white grubs, aphids, and scale insects, as are the biorational avermectins for spider mites. Fipronil can be applied to containerized seedlings in the nursery, as well as at planting. This paper was presented at the Joint Meeting of the Northeast Forest and Conservation Nursery Association and Southern Forest Nursery Association (Lake Charles, LA, July 18–21, 2016).
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Author(s): Alex C. Mangini
Publication: Tree Planters' Notes - Volume 60, Number 2 (2017)
Event:
Joint Meeting of the Northeast Forest and Conservation Nursery Association and Southern Forest Nursery Association
2016 - Lake Charles, Louisiana
Volume: 60
Number: 2
