Sprout inhibitor method comprising application of chlorpropham (CIPC) and dimethylnaphthalene (DMN)

• US 5,965,489 A
• Filed: 06/30/1997
• Issued: 10/12/1999
• Est. Priority Date: 06/30/1997
• Status: Expired due to Term

• Current Assignee: 1,4Group Incorporated
• Original Assignee: Darol Forsythe, John M. Forsythe
• Inventors: Forsythe, John M., Forsythe, Darol
• Primary Examiner(s): CLARDY, S
• Application Number:
  US08/885,387
• Time in Patent Office: 834 Days
• Field of Search: 504/304, 504/357, 504/143
• US Class Current: 504/143
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 27/00 Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
• CPC Class Codes: A01N 47/20 N-Aryl derivatives thereof

Abstract

A method of treating potatoes sequentially with chemically-different sprout inhibitors is disclosed. Sprouting of stored potatoes may be eliminated or minimized by a treatment with CIPC followed sometime later by a treatment with a substituted naphthalene such as 1,4-DMN. Also, an initial treatment with 1,4-DMN soon after the potatoes are harvested may be advantageous in addition to the later treatments with CIPC and 1,4-DMN.

Claims

1. A method of inhibiting sprout formation in tubers during storage and post-storage comprising:

a) applying a first treatment of DMN at an application rate of less than about 20 ppm to effect a residue on said potatoes of about 0.5 ppm to about 2 ppm to the potatoes while said potatoes are still healing cuts and bruises;

b) applying a first treatment of CIPC to the potatoes after healing has occurred in an amount to form a residue of about at least about 4 ppm after said first DMN treatment; and

c) applying a second treatment of DMN at an application rate of less than about 20 ppm to the potatoes after said CIPC treatment to effect a residue on said potatoes of about 0.5 ppm to about 2 ppm.

2. The method of claim 1 wherein said first treatment with CIPC provided a residue of about 4 to about 8 ppm of CIPC.