Isbn: 9781527851900 - reports of observations and experiments in the practical work of the division, made under the direction of the entomologist (classic reprint) (3 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book presents a compilation of reports from field agents of the Division of Entomology within the U.S. Department of Agriculture for the year 1892. It details the observations, experiments, and findings of these agents as they relate to beneficial and harmful insects, providing a rich account of entomological research during that time. The reports cover diverse topics, including the introduction and establishment of beneficial insects from Australia and New Zealand to combat invasive pests in California, investigations into a destructive spanworm affecting walnut trees, and ongoing efforts to control the cottony cushion scale and other injurious insects threatening fruit trees. The book offers valuable insights into the history of biological control and pest management practices, highlighting the challenges and successes encountered by entomologists in the late 19th century. Its detailed descriptions and scientific observations make it a valuable resource for entomologists, historians of science, and anyone interested in the development of pest management strategies. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.…