Download or read book An Ecological Study of the Larch Sawfly Lygaeonematus Erichsonii Hartig written by Hubert Lawrence Person and published by . This book was released on 1922 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Coelopisthia nematicida pack A chalcid parasite of the large larch sawfly Lygaeonematus erichsonii hartig written by Charles Gordon Hewitt and published by . This book was released on 1911 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Animal Ecology with Especial Reference to Insects written by Royal Norton Chapman and published by . This book was released on 1977 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Forest Worker written by and published by . This book was released on 1927 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Control Programmes Against Insects and Weeds in Canada 1969 1980 written by Commonwealth Agricultural Bureaux and published by Farnham Royal, Slough, England : Commonwealth Agricultural Bureaux. This book was released on 1984 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Communication Commonwealth Institute of Biological Control written by Commonwealth Institute of Biological Control and published by . This book was released on 1960 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Report written by and published by . This book was released on 1981 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hymenoptera reprints Bradley collection written by and published by . This book was released on 1961 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sawfly Life History Adaptations to Woody Plants written by Michael R. Wagner and published by . This book was released on 1993 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: An international group of ecologists, entomologists and foresters have united to explore the life history traits of the Symphyta, or sawflies. This volume provides a treatment of these pests, their life history characteristics and evolutionary innovations for living on woody plants.

Download or read book Catalog of Hymenoptera in America North of Mexico written by and published by . This book was released on 1979 with total page 1222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Larch Sawfly written by and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hymenoptera and Biodiversity written by John LaSalle and published by Oxford University Press, USA. This book was released on 1993 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing attention has been focused on biodiversity in recent years, based on a number of arguments to justify the conservation of the world's flora and fauna. Such arguments may be economic - that species may have potential for food or medicine - or ecological - that the extinction of any species affects the overall ecological balance. Little attention, however, has been focused on which groups have the greatest impact on maintaining diversity. Hymenoptera is one of these groups. It not only forms a major component of diversity itself, but is vital in sustaining diversity in other groups. Hymenoptera species (bees, wasps, ants and sawflies) are major plant pollinators, seed dispersers and parasitoids and predators of other arthropods (and hence important in biological control). This volume therefore tackles an important subject and concentrates on three key issues: how species of Hymenoptera affect diversity in other organisms; whether Hymenoptera is a group prone to extinction; and the consequences if Hymenoptera species are differentially removed from terrestrial ecosystems. The book is essential reading for entomologists and those concerned with biodiversity and conservation.

Download or read book Biological Control of Arthropod Pests of the Northeastern and North Central Forests in the United States written by R. G. Van Driesche and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Large Larch Sawfly written by R. Stewart MacDougall and published by . This book was released on 1906 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book European Pine Sawfly written by Louis F. Wilson and published by . This book was released on 1971 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Larch Sawfly written by Arnold Thomas Drooz and published by . This book was released on 1960 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insects of Eastern Forests written by and published by . This book was released on 1985 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: