Skip to main content

Main menu

  • Home
  • Content
    • Ahead of Print
    • Current Issue
    • Special Issues
    • All Issues
  • Contribute
    • Submit to AUF
    • Author Guidelines
    • Reviewer Guidelines
  • About
    • Overview
    • Editorial Board
    • Journal Metrics
    • International Society of Arboriculture
  • More
    • Contact
    • Feedback
  • Alerts

User menu

  • Register
  • Subscribe
  • My alerts
  • Log in

Search

  • Advanced search
Arboriculture & Urban Forestry
Arboriculture & Urban Forestry

Advanced Search

  • Home
  • Content
    • Ahead of Print
    • Current Issue
    • Special Issues
    • All Issues
  • Contribute
    • Submit to AUF
    • Author Guidelines
    • Reviewer Guidelines
  • About
    • Overview
    • Editorial Board
    • Journal Metrics
    • International Society of Arboriculture
  • More
    • Contact
    • Feedback
  • Alerts
  • Facebook
  • Twitter
  • YouTube
  • LinkedIn
Research ArticleArticles

Abstracts

Arboriculture & Urban Forestry (AUF) September 1991, 17 (9) 256; DOI: https://doi.org/10.48044/joa.1991.17.9.256
  • Article
  • Info & Metrics
  • References
  • PDF
Loading

McCREARY, D.D. 1990. Blue oaks withstand drought.California Agriculture 44(2): 15-17.

In mid-August 1987, many oak trees in California began turning brown and dropping their leaves. Most observers felt the reason for the trees changing color so early was drought. This is consistent with knowledge Of tree physiology. A study was undertaken to identify; some of the effects of drought on blue oak trees. The initial analysis examined whether or not there were significant relationships between the degree of defoliation and subsequent growth and development, including survival, acorn production, and leaf-out date. All 200 trees survived both years’ defoliations and leafed out the following springs. Defoliated trees tended to leaf out earlier than those that remained green. The results of this study suggest that summer defoliation of blue oaks from drought has little short-term impact on growth or survival. California’s blue oaks are apparently well adapted to withstand the adverse effects of periodic droughts.

BOOTH, D.C., T. SMILEY and B.R. FRAEDRICH. 1990. New technology from IPM programs. Arbor Age 10(2): 12-14,16.

IPM provides early detection and spot treatment of insects, mites, diseases, and cultural problems. The major goal of a tree-and-landscape IPM program is improved plant care with reduced chemical usage. The following new technology represents developments currently available to the arborist to help meet this goal: Horticultural Spray Oils Insecticidal Soap, Natural Insecticides, Biological Control, Pyrethroids, Plant Disease Detection, Slow-Release Nitrogen Fertilizers, pH Testing, Foliar Nutrient Analysis and Soil Aeration Machines. New developments will continue to refine and improve the IPM technology available to the arborist. The challenge for IPM programs in the 1990s will be to improve our ability to detect problems and treat them with the least possible environmental impact.

  • © 1991, International Society of Arboriculture. All rights reserved.
PreviousNext
Back to top

In this issue

Arboriculture & Urban Forestry (AUF)
Vol. 17, Issue 9
September 1991
  • Table of Contents
  • Index by author
Print
Download PDF
Email Article

Thank you for your interest in spreading the word on Arboriculture & Urban Forestry.

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
Abstracts
(Your Name) has sent you a message from Arboriculture & Urban Forestry
(Your Name) thought you would like to see the Arboriculture & Urban Forestry web site.
Citation Tools
Abstracts
Arboriculture & Urban Forestry (AUF) Sep 1991, 17 (9) 256; DOI: 10.48044/joa.1991.17.9.256

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
Share
Abstracts
Arboriculture & Urban Forestry (AUF) Sep 1991, 17 (9) 256; DOI: 10.48044/joa.1991.17.9.256
del.icio.us logo Digg logo Reddit logo Twitter logo CiteULike logo Facebook logo Google logo Mendeley logo
  • Tweet Widget
  • Facebook Like
  • Google Plus One
Bookmark this article

Jump to section

  • Article
  • Info & Metrics
  • References
  • PDF

Related Articles

  • No related articles found.
  • Google Scholar

Cited By...

  • No citing articles found.
  • Google Scholar

More in this TOC Section

  • Hardscape of Soil Surface Surrounding Urban Trees Alters Stem Carbon Dioxide Efflux
  • Literature Review of Unmanned Aerial Systems and LIDAR with Application to Distribution Utility Vegetation Management
  • Borrowed Credentials and Surrogate Professional Societies: A Critical Analysis of the Urban Forestry Profession
Show more Articles

Similar Articles

© 2023 International Society of Arboriculture

Powered by HighWire