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Variability of Norway spruce (Picea abies L.) needles; performance of spruce sawflies (Gilpinia hercyniae Htg.)


Variability of Norway spruce (Picea abies L.) needles; performance of spruce sawflies (Gilpinia hercyniae Htg.)



Oecologia 77(3): 313-320



ISSN/ISBN: 0029-8549

PMID: 28311943

DOI: 10.2307/4218782

Larvae of the spruce sawfly Gilpinia hercyniae were reared on whole branches of Norway spruce, Picea abies. Top and low branches were selected from flowering and nonflowring stands. Sawfly performance from the larval L2-stage until the fertile egg stage of the next generation was recorded. Growth and development were best on top branches from the flowering stand, poorest on branches from windblown, partly derooted and heavily flowering trees. Analysis of some 30 biochemicals in needles and faeces was performed. New needles had the highest concentrations of some nutrients (total nitrogen, amino acids), however, G. hercyniae larvae only fed on old needles, a 100% mortality being recorded on newly flushed needles, probably because these needles also contained the highest concentrations of the secondary compound, quinic acid. Old needles showed high variability in concentrations of nutrients and secondary compounds. Regression analysis demonstrated that the total amount of carbohydrates (glucose, fructose and sucrose) was significantly correlated with the larval linear growth rate, the maximal larval weight, the cocoon weight and the number of eggs per female. In these performance variables 72-88% of the variation could be explained by five biochemicals. Survival rates of larvae or pupae and the instantaneous growth rate could not be explained by the biochemical variables. Only weak correlations were found between nitrogen or amino acids and performance variables. Assimilation of the various biochemicals was calculated and showed high rates (90-97%) in hexoses and lower rates (38-65%) in total nitrogen and amino acids.

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Accession: 060458397

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Related references

Variability of Norway spruce (Picea abies L.) needles; performance of spruce sawflies (Gilpinia hercyniae Htg.). Oecologia (Berlin): 773: 313-320, 1988

Eiablage und -entwicklung von Gilpinia hercyniae Htg. (Hym., Diprionidae) an Nadeln erkrankter und schadsymptomfreier Fichten (Picea abies [L.] Karst.) - Oviposition et développement des oeufs chez Gilpinia hercyniae Htg. (Hym., Diprionidae) sur les aiguilles malades ou apparemment saines de Picea abies [L.] Karst - Studies on oviposition and egg development of Gilpinia hercyniae Htg. (Hym., Diprionidae) on needles of diseased and apparently healthy Norway spruce (Picea abies [L.] Karst.). Zeitschrift für Angewandte Entomologie 109(3): 274-282, 1990

Food quality of spruce needles used for forest damaging insects 19. the changes that the chemical components of spruce needles undergo in the course of the year in respect to their physiological state within the systemic bond between spruce picea abies and the sawfly gilpinia hercyniae hymenoptera diprionidae. Zeitschrift fuer Angewandte Entomologie 95(2): 141-150, 1983

Food quality of spruce needles used by forest damaging insects. 19. Changes chemical components of spruce needles undergo in the course of the year in respect to their physiological valence within the systemic bond between spruce (Picea abies Karst.) and the sawfly Gilpinia hercyniae (Hymenoptera, Diprionidae). Zeitschrift fur angewandte Entomologie = Journal of applied entomology 95(2): 141-150, 1983

On the food quality of spruce needles for forest-damaging insects. 19. The annual cycle of spruce-needle contents in relation to the systemic bond between spruce (Picea abies Karst.) and Gilpinia hercyniae (Hym., Diprionidae). Zeitschrift fur Angewandte Entomologie 95(2): 141-150, 1983

As to the food quality of spruce needles for forest damaging insects. 14. Interrelationships between proteins and phenols after feeding larvae of Gilpinia hercyniae (Hym., Diprionidae) with spruce needles (Picea abies Karst.). Zeitschrift fur Angewandte Entomologie 90(2): 113-126, 1980

On the food quality of spruce needles for forest insect pests. 13. Studies on the nitrogen balance of larvae of Gilpinia hercyniae Htg. (Hym., Diprionidae) after feeding on needles of spruce (Picea abies Karst) of different origin. Zeitschrift fur Angewandte Entomologie 89(1): 3-12, 1980

Food quality of spruce needles for forest damaging insects 13. studies on the nitrogen balance of larvae of gilpinia hercyniae hymenoptera diprionidae after feeding on needles of spruce picea abies from different provenances. Zeitschrift fuer Angewandte Entomologie 89(1): 3-12, 1980

Food quality of spruce needles for forest damaging insects. 6. utilization of nutritives by the larvae of Gilpinia hercyniae Htg. (Hymenoptera, Diprionidae) feeding with spruce (Picea abies Karst.) needles under standard conditions. Zeitschrift fur angewandte Entomologie 79(2): 177-193, 1975

Nutrient quality of spruce needles for forest damaging insects. 13. Studies on the nitrogen balance of larvae of Gilpinia hercyniae Htg. (Hymenoptera, Diprionidae) after feeding on needles of spruce (Picea abies Karst.) from different provenances. Zeitschrift fur angewandte Entomologie = Journal of applied entomology 89(1): 3-12, 1980

The food quality of spruce needles for forest damaging insects. 9. Influence of extracts of the needles of spruce (Picea abies Karst.) on the activity of glucose-6-phosphate dehydrogenase on larvae of Gilpinia hercyniae (Hym., Diprionidae). Zeitschrift fur Angewandte Entomologie 85(4): 379-391, 1978

Food quality of spruce needles for forest damaging insects part 9 influence of needles of the spruce picea abies on glucose 6 phosphate dehydrogenase activity in larvae of gilpinia hercyniae hymenoptera diprionidae. Zeitschrift fuer Angewandte Entomologie 85(4): 379-391, 1978

Nutritional quality of spruce needles for forest insect pests. 9. effect of extracts of spruce (Picea abies Karst) needles on the activity of glucose 6 phosphate dehydrogenase from Gilpinia hercyniae larvae (Hymenoptera, Diprionidae). Zeitschrift fur angewandte Entomologie 85(4): 379-391, 1978

Studies on oviposition and egg development of gilpinia hercyniae htg. hymenoptera diprionidae on needles of diseased and apparently healthy norway spruce picea abies l. karst. Journal of Applied Entomology 109(3): 274-282, 1990

Spruce needle compounds and the susceptibility of Norway spruce ( Picea abies Karst.) to attacks by the European sawfly, Gilpinia hercyniae Htg. (Hy M., Diprionidae). Journal of Applied Entomology 107(1-5): 435-445, 1989