Assessment of Cone-Damaging Insects in a Swedish Spruce Seed Orchard and the Efficacy of Large-Scale Application of Bacillus thuringiensis variety aizawai × kurstaki Against Lepidopterans

@inproceedings{Rosenberg2005AssessmentOC,
  title={Assessment of Cone-Damaging Insects in a Swedish Spruce Seed Orchard and the Efficacy of Large-Scale Application of Bacillus thuringiensis variety aizawai × kurstaki Against Lepidopterans},
  author={Olle Rosenberg and Jan Weslien},
  year={2005}
}
In a 2-yr study, we investigated the efÞcacy of large-scale application of the biological insecticide Bacillus thuringiensis variety aizawai kurstaki (Btk) in a Swedish spruce, Picea abies L. (Karst.), seed orchard for controlling damage caused by four lepidopteran species:Dioryctria abietella Den et. Schiff. (Pyralidae),EupitheciaabietariaGötze,E.analogaDjakonov (Geometridae), andCydia strobilella (L.) (Tortricidae). The frequencies of these species, and Strobilomyia anthracina Czerny (Diptera… 
Biology and Management of North American Cone-Feeding Dioryctria Species
TLDR
The development of integrated pest management programs targeting Dioryctria species will benefit from a conceptual framework on which to base future research, and it is recommended that factors that mediate population distribution at landscape, local, and temporal scales are identified.
Viability and germination of Scots pine seeds after freezing of harvested cones in vitro
TLDR
The higher the cone water content at the onset of freezing treatment, the higher the proportion of seeds with apparent damage in that particular cone, and high water content in cones also resulted in decreased germination after freezing treatment.

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