8 Colo. Code Regs. § 1203-22, pt. 2.0

Current through Register Vol. 48, No. 1, January 10, 2025

Part 2.0 - Requirements for All Certified Seed Potatoes

2.1.0 Pursuant to § 35-27.3-108(1)(b)(II), C.R.S., all certified seed potatoes planted in Colorado before August 1, 2015, in lots sufficient to plant one or more acres as specified in Part 9.0, must meet the following requirements:

2.1.1 The lot may contain no more than 1.5% tubers with Leafroll Virus;

2.1.2 The lot may contain no more than 8% tubers with total virus based on post harvest testing;

2.1.3 The lot may contain no more than 1.5 % tubers with Necrotic viruses except that no tubers may contain any Mop Top or Tobacco Rattle Virus;

2.1.4 The lot must be free of Bacterial Ring Rot (Clavibacter michiganensis subsp. sepedonicus) and Golden nematode (Globodera rostenchiensis),

2.1.5 All seed potatoes imported into the San Luis Valley must meet the requirements of the Quarantine for Late Blight, 8 CCR 1203-13.

2.2.0 Pursuant to § 35-27.3-108(1)(b)(II), C.R.S., all certified seed potatoes planted in Colorado on or after August 1, 2015, in lots sufficient to plant one or more acres as specified in Part 9.0, must meet the following requirements:

2.2.1 Based on the postharvest test, the lot may contain no more than 5% tubers with virus, including no more than 1% PVY^N serotype strains (PVY^N and PVY^NTN).

2.2.2 [Emergency regulation expired 08/11/2016].

2.2.3 No tubers may contain any Mop Top or Tobacco Rattle Virus;

2.2.4 The lot must be free of Bacterial Ring Rot (Clavibacter michiganensis subsp. sepedonicus) and Golden nematode (Globodera rostenchiensis),

2.2.5 All seed potatoes imported into the San Luis Valley must meet the requirements of the Quarantine for Late Blight, 8 CCR 1203-13.

2.3.0 Growers must maintain documentation of compliance with these disease standards for a period of two years for each lot of seed potatoes planted.

8 CCR 1203-22, pt. 2.0

38 CR 05, March 10, 2015, effective 3/30/2015