Harold Kaufman Plank (49 results)

Condition: As New. Unread book in perfect condition.

Condition: New.

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

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

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

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

Condition: New.

Condition: New.

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

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

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

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

Condition: New.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condition: Brand New. 43 pages. 9.02x5.98x0.09 inches. In Stock.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. Established seller since 2000.

Condition: New.

Condition: As New. Unread book in perfect condition.

Paperback. Condition: New. Print on Demand. This book provides an in-depth overview of pests and diseases affecting Cinchona, also known as the quinine tree. The text discusses the importance of these trees as a source of antimalarial medication. Moreover, the author has included sections on the history of Cinchona cultivation in Puerto Rico along with the various insects and other pests that have historically affected the growth of these trees. The author also offers practical methods to control these pests and diseases, ensuring a successful harvest. The author's insights and research are highly valuable to anyone cultivating Cinchona and offer potential solutions to challenges faced by those seeking to maximize the yield of these trees. 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.…

Paperback. Condition: New. Print on Demand. This book delves into the fascinating world of natural insecticides, exploring the potential of plants found in Puerto Rico to combat insect pests. The author meticulously examines a diverse range of flora, from common weeds to exotic trees, testing their effectiveness against a variety of insects. Through rigorous laboratory trials, the author uncovers the insecticidal properties of various plants, highlighting the remarkable potency of mamey and yam bean seeds. The book sheds light on the historical use of these plants in pest control, offering a glimpse into traditional knowledge and practices. By showcasing the efficacy of natural insecticides, this book challenges the reliance on synthetic chemicals and encourages a more sustainable approach to pest management. It serves as a valuable resource for farmers, gardeners, and anyone interested in exploring the power of nature's defenses against insects. Ultimately, the book's insights remind us that solutions to present-day challenges can often be found in the wisdom of the past and the bounty of the natural world. 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.…

Paperback. Condition: New. Print on Demand. This book delves into the life history, habits, and effective control of the coconut rhinoceros beetle, Strategus quadrifoveatus, in Puerto Rico. The author provides a detailed account of the beetle's various life stages, feeding habits of the larvae, and the behavior of adults, including their destructive feeding on young coconut palms. The book draws on extensive field observations and laboratory experiments to offer valuable insights into the biology of this significant pest. The author explores natural control methods, such as hand collection and trapping, as well as cultural practices like grove sanitation and the use of repellents. By examining the broader context of coconut rhinoceros beetle infestation within the agricultural landscape of Puerto Rico, this book contributes to the understanding and management of a pest that has posed challenges to the local coconut industry. Its comprehensive approach makes this book an essential resource for entomologists, agriculturalists, and anyone seeking to protect coconut crops from this destructive beetle. 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.…

Paperback. Condition: New. Print on Demand. This book delves into the fascinating world of the codling moth, a significant pest that has plagued the Grand Valley of Colorado. The author meticulously documents the life cycle of this resilient insect, revealing its intricate behavior and developmental stages. Armed with this in-depth knowledge, the book provides valuable insights into effective control methods, empowering fruit growers to combat this persistent threat to their crops. The author emphasizes the importance of timely spraying and offers practical schedules tailored to the unique conditions of the Grand Valley. By implementing these strategies, growers can significantly reduce infestations and protect their fruit from damage. 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.…

Paperback. Condition: New. Print on Demand. This book delves into the world of bamboo and its susceptibility to the powder post beetle, a destructive pest. The author delves into the factors that influence the beetle's attraction to bamboo, exploring the role of starch concentration, physical properties of the wood, and the impact of harvesting practices. Through experimentation, the author elucidates how moisture content, specific gravity, and season of harvest play a role in beetle infestation. The book also investigates preventive measures, such as curing or seasoning the wood, and the effectiveness of both air drying and water curing. The author presents a comprehensive analysis of clump curing, a technique that involves drying culms upright in the field to reduce starch content and subsequent beetle attack. The insights provided in this book are crucial for understanding the behavior of the powder post beetle and developing effective strategies to protect bamboo from its damaging effects. Woodworkers, conservationists, and anyone interested in the preservation of bamboo will find this work invaluable. 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.…

Paperback. Condition: New. Print on Demand. This book explores the blackhead fireworm, a cranberry pest that has plagued the Pacific Northwest since the early 20th century. The author, a scientist working for the United States Department of Agriculture, conducted extensive research on the insect, its life cycle, feeding habits, and the damage it caused to cranberry crops. Through a series of experiments, the author tested various methods of controlling the pest, including the use of different insecticides and spray nozzles. The book provides valuable insights into the challenges faced by cranberry growers in the region and the development of effective strategies to combat this destructive pest. 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. …

Paperback. Condition: New. Print on Demand. 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.…

Buch. Condition: Neu. Neuware.