Invasive alien forest insect species in south-eastern Romania.

Olenici, N., Bălăcenoiu, F., Tomescu, R., Nețoiu, C., Buzatu, A., Alexandru, A., (2022). Notulae Botanicae, Horti Agrobotanici, Cluj-Napoca 50(1) University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania. English language

Cinara splendens (Hemiptera: Aphididae: Lachninae) - first record in Palaearctic region.

Havelka, J., Havelka, J., Starý, P., (2020). Forests 11(9) MDPI AG, Basel, Switzerland. English language

Prey suitability and phenology of Leucopis spp. (Diptera: Chamaemyiidae) associated with hemlock woolly adelgid (Hemiptera: adelgidae) in the Pacific Northwest.

Grubin, S. M., Ross, D. W., Wallin, K. F., (2011). Environmental Entomology 40(6), 1410-1416. Entomological Society of America, Lanham, USA. English language

Founder effects and phenotypic variation in Adelges cooleyi, an insect pest introduced to the eastern United States.

Ahern, R. G., Hawthorne, D. J., Raupp, M. J., (2009). Biological Invasions 11(4), 959-971. Springer Science + Business Media, Dordrecht, Netherlands. English language

Aphids.

USA, Maine Department of Conservation (2000) External factsheets, Maine Department of Conservation, English language

Resistance to galling adelgids varies among families of Engelmann spruce (Picea engelmannii P.).

Mattson, W. J., Yanchuk, A., Kiss, G., Birr, B., (1999). Physiology and genetics of tree-phytophage interactions. International Symposium, Gujan, France, 31 August-5 September, 1997., 51-64. INRA Editions, Versailles, France. English language

Unwelcome visitors to the island at Christmas.

Bermuda, Department of Agriculture & Fisheries, (1997). Monthly Bulletin - Department of Agriculture, Fisheries & Parks, Bermuda 68(1), 8 pp. Department of Agriculture & Fisheries, Bermuda, Hamilton, Bermuda. English language

2.° Aditamento ao catálogo dos afídeos de Portugal continental (Homoptera, Aphidoidea). / 2nd addition to the catalogue of the aphids of continental Portugal (Homoptera, Aphidoidea).

Ilharco, F. A., (1996). Agronomia Lusitana 45(1/3), 5-66. Portuguese language

Entomofauna fitofaga della Pseudotsuga menziesii (Mirb.) Franco var. menziesii in aree appenniniche. / Insects associated with Douglas fir in the Apennines.

Roversi, P. F., Baccetti, C., Fabbricatore, T., Covassi, M., Nocentini, S., (1993). Annali dell'Istituto Sperimentale per la Selvicoltura 24, 49-62. Italian language

A comparison of Aphidecta obliterata (L.) (Col., Coccinellidae) populations feeding on Elatobium abietinum (Walker) and on Adelges cooleyi (Gillette).

Parry, W. H., (1992). Journal of Applied Entomology 114(3), 280-288. English language