langor d w (4 risultati)

Soft cover. Condizione: Very Good+. Minor shelf wear. Owner label on inside front coverOtherwise a square, tight, unmarked book. 296 pp.

Soft cover. Condizione: Very Good. Special report 3. 297 pp, index, colour photos. Light edge and corner wearr. Previous owner's name title page.

Paperback. Condizione: Very Good. Clean, tight, unmarked; light crease across upper front corner of cover; otherwise very minimal shelfwear; "The most common and important insects, diseases and other damaging agents of forest trees in the Canadian provinces are described in terms of their symptoms and signs, distribution, hosts, disease (life) cycle, and damage.".

A synopsis of the adventive species of the Coleoptera superfamily Chrysomeloidea (Cerambycidae, Chrysomelidae, and Megalopodidae) in Canada is presented, including 10 new jurisdictional records. In Canada, 72 species in 38 genera and three families are reported as adventive, constituting 7.4% of the national fauna of this group. Most adventive species belong to Chrysomelidae (61 spp.) followed by Cerambycidae (10 spp.). Many species cause substantial economic damage to forests, crops, and stored products. Eighteen species were intentionally introduced as biocontrol agents against perennial weeds. Each adventive species is reviewed and illustrated with colour habitus photos. The Canadian distribution for each species is mapped and the general distribution in the USA provided. General habitat information for each species is summarized and a taxonomic diagnosis provided. Sofia, Moscow. Pensoft. 175 pp., 72 colour photos, 62 colour distribution maps, hardcover gr. 8 [17 x 24 cm].