Southern Research Station

Title: Nitric Acid and Benomyl Stimulate Rapid Height Growth of Longleaf Pine

Author: Kais, A.G.; Hare, R.C.; Barnett, J.P.

Date: 1984

Source: Res. Note SO-307. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

Station ID: RN-SO-307

Description: Rapid height growth of longleaf pine seedlings, important to production of uniform, even-aged stands, can be promoted by controlling brown-spot needle blight and weed competition, and by increasing soil fertility. Root systems of container-grown longleaf pine seedlings were dip-treated in either benomyl/clay mix (10 percent a.i. benomyl) or clay control and planted in scalped rows that had been treated with various levels of nitric acid (0, 4, or 8 percent). After one growing season in the field, seedlings were evaluated for survival, brown spot infection, and vigor; plots were evaluated for weed competition. The benomyl root-dip treatment improved seedling survival, controlled brown spot infection, and promoted growth of outplanted seedlings in the first year. For the same period, treatment of soil with nitric acid improved seedling survival and vigor and significantly reduced the amount of competing vegetation. The combined use of benomyl and nitric acid resulted in the most rapid height growth.

Keywords: Brown-spot needle blight, Scirrhia acicola (Dearn.) Siggers, fertilizer, herbicide, disease control, Pinus palustris

View and Print this Publication (217 KB)

Pristine Version:  An uncaptured or "pristine" version of this publication is available. It has not been subjected to OCR (Optical Character Recognition) and therefore does not have any errors in the text. However it is a larger file size and some people may experience long download times. The "pristine" version of this publication is available here:

View and Print the PRISTINE copy of this Publication (678 KB)

Publication Notes: 

• We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
• This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
• You may send email to pubrequest@fs.f ed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

 Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

Citation

Kais, A.G.; Hare, R.C.; Barnett, J.P.  1984.  Nitric Acid and Benomyl Stimulate Rapid Height Growth of Longleaf Pine.   Res. Note SO-307. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.