Current status of pests associated with urban vegetation in Bucharest area.

Ciceoi, R., Gutue, C., Gutue, M., Roșca, I., (2017). Acta Zoologica Bulgarica(No.Supplementum 9), 181-190. Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences (IBER-BAS), Sofia, Bulgaria. English language

Effect of different headspace concentrations of bornyl acetate on fecundity of green peach aphid and balsam woolly adelgid.

Bucholz, E., Frampton, J., Jetton, R., Tilotta, D., Lucia, L., (2017). Scandinavian Journal of Forest Research 32(5), 397-405. Taylor & Francis, Abingdon, UK. English language

A severity rating system for evaluating stand-level balsam woolly adelgid (Hemiptera: Adelgidae) damage in two Abies species in western North America.

Hrinkevich, K. H., Progar, R. A., Shaw, D. C., (2016). Forest Science 62(2), 181-189. Society of American Foresters, Bethesda, USA. English language

The speed of invasion: rates of spread for thirteen exotic forest insects and diseases.

Evans, A. M., (2016). Forests 7(5), 99. MDPI AG, Basel, Switzerland. English language

Chapter 12. Assessment of Balsam woolly adelgid damage to Eastern Washington and Oregon subalpine fir (Project WC-F-07-01).

Spiegel, L. H., Chadwick, K., Mehmel, C., (2013). General Technical Report - Southern Research Station, USDA Forest Service(No.SRS-176), 129-134. Southern Research Station, USDA Forest Service, Asheville, USA. English language

Balsam woolly adelgid.

Canada, Ministry of Agriculture BC (2012) External factsheets, Government of British Columbia, English language

Relationship between an exotic phloem feeder and balsam fir (Abies balsamea L. (Mill.)) foliar chemistry: implications for two native defoliators.

Grégoire, D. M., Quiring, D. T., Royer, L., Bauce, É., (2014). Arthropod - Plant Interactions 8(4), 361-371. Springer, Dordrecht, Netherlands. English language

Strane fitofagne vrste kukaca i grinja na drvenastom bilju u Hrvatskoj. / Alien phytophagous insect and mite species on woody plants in Croatia.

Matošević, D., Živković, I. P., (2013). Šumarski List 137(3/4), 191-205. Hrvatsko Šumarsko Društvo (Croatian Forestry Society), Zagreb, Croatia. Croatian language

Dreyfusia nordmannianae in Northern and Central Europe: potential for biological control and comments on its taxonomy.

Ravn, H. P., Havill, N. P., Akbulut, S., Foottit, R. G., Serİn, M., Erdem, M., Mutun, S., Kenis, M., (2013). Journal of Applied Entomology 137(6), 401-417. Wiley-Blackwell, Berlin, Germany. English language

Adelges piceae. [Distribution map].

CABI/EPPO, (2012). Distribution Maps of Plant Pests(June), Map 759. CABI, Wallingford, UK. English language