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Unanswered key questions in bark beetle-plant interactions concern host finding in species attacking angiosperms in tropical… Expand The spiroketal (E)-conophthorin has recently been reported as a semiochemical of the navel orangeworm moth, a major insect pest… Expand This thesis is intended to further extend the scope of camphor and camphor-derived building blocks in the synthesis of chiral… Expand An efficient sysnthesis of 5,5-spiroketals, i.e. 1,6-dioxaspiro[4.4]nonane derivatives, is described from 2… Expand Syntheses of all four Stereoisomers (2S,5S; 2S,5R;2R,5R; and2R,5S) of chalcogran, a major component of the aggregation pheromone… Expand A puddle trap was designed that is simple to build and efficient in catching bark beetles (Coleoptera: Scolytidae). The trap is… Expand predator which was previously thought to respond to the P. chalcographus pheromone, chalcogran, only . Though nothing is… Expand The four stereoisomers of chalcogran 1 ((2RS,SRS)-2-ethyl-1,6-di-oxaspiro[4.4]nonane), the principal component of the aggregation… Expand 4apillary gas chromatography and mass spectrometry were used to quantify the amounts of Eand Zchalcogran and methyl (E,Z)-2,4… Expand