HOST RESISTANCE TO THE FIR ENGRAVER BEETLE, SCOLYTUS VENTRALIS (COLEOPTERA: SCOLYTIDAE): 4. EFFECT OF DEFOLIATION ON WOUND MONOTERPENE AND INNER BARK CARBOHYDRATE CONCENTRATIONS

@article{Wright1979HOSTRT,
  title={HOST RESISTANCE TO THE FIR ENGRAVER BEETLE, SCOLYTUS VENTRALIS (COLEOPTERA: SCOLYTIDAE): 4. EFFECT OF DEFOLIATION ON WOUND MONOTERPENE AND INNER BARK CARBOHYDRATE CONCENTRATIONS},
  author={L. C. Wright and A. Berryman and S. Gurusiddaiah},
  journal={Canadian Entomologist},
  year={1979},
  volume={111},
  pages={1255-1262}
}
Monoterpene production, inner bark carbohydrate concentrations, and fir engraver attacks on grand fir were monitored for 3 years following Douglas-fir tussock moth defoliation. Monoterpenes were reduced for 2 years following defoliation. Defoliation caused a reduction in total sugars the first year following defoliation and a reduction in starch the second year. Total sugars and the previous year’s starch concentrations were positively correlated with monoterpene production. The trees which… Expand
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