staghead Table of Contents Introduction References & Edit History Images Read Next The World Science Festival’s Pioneers in Science How Do Face Masks Control the Spread of Disease? 5 Quizzes That Will Tell You Whether You Should Have Been a Scientist 8 Zoonotic Diseases What Are the Symptoms of a Stroke? Discover 6 Animals We Ate Into Extinction What Is the Emoluments Clause? 9 of the World’s Deadliest Snakes Why Do Some Cicadas Appear Only Every 17 Years? Secret Service Code Names of 11 U.S. Presidents Falling Stars: 10 of the Most Famous Endangered Species How Deadly Is Quicksand? Contents Science Biology Life Cycle, Processes & Properties staghead disease Ask the Chatbot a Question More Actions Print Cite verifiedCite While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions. Select Citation Style MLA APA Chicago Manual of Style Copy Citation Share Share Share to social media Facebook X URL https://www.britannica.com/science/staghead Feedback Feedback Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login). Feedback Type Select a type (Required) Factual Correction Spelling/Grammar Correction Link Correction Additional Information Other Your Feedback Submit Feedback Thank you for your feedback Our editors will review what you’ve submitted and determine whether to revise the article. External Websites Ask the Chatbot a Question Written and fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors. The Editors of Encyclopaedia Britannica Article History Table of Contents Table of Contents Ask the Chatbot Related Topics: dieback (Show more) staghead, progressive slow death of tree branches from the top down. See dieback.