Rule 40-4-26-.06 - Growing Citrus Nursery Stock in Georgia(1) Georgia Citrus Nursery Stock Program Participation (a) It shall be unlawful to propagate or plant citrus nursery stock that is not produced in accordance with these Rules. Participation in the Georgia Citrus Nursery Stock Program does not imply any warranty on the part of the nurserymen, the Department, or any employee thereof.(b) Prior to propagating citrus nursery stock, propagators must:1. Register with the Georgia Department of Agriculture, Plant Protection Section by completing a Georgia Citrus Nursery Application;2. Pay applicable fees; and3. Comply with all conditions that apply to the Georgia Citrus Nursery Stock Program contained in these Rules.(c) Application Process and Fees 1. Applications for a Georgia Citrus Nursery can be obtained from the Department's website.2. Applicants must submit completed application forms according to directions on the form.3. An inspection of the facility will be scheduled to determine if the citrus plants and structure meet the requirements of these Rules. The cost of this inspection will be listed on the application form.4. An annual fee of $500 will be required for facilities with a total enclosed pest exclusion area of up to 25,000 square feet, plus $500 for each additional 25,000 square feet or fraction thereof.5. Renewal payments are late if the fee has not been received by the Department by the due date.6. The Georgia Citrus Nursery status will be canceled if payment of the renewal fee is 60 or more days late. In such case, the facility must re-apply to be a Georgia Citrus Nursery.(d) Georgia Citrus Nursery Program Participation Required 1. Propagators of citrus nursery stock must hold a current Live Plant License.(i) Citrus nursery stock is required to be grown in a pest exclusion structure facility until:(I) Moved directly to a grove for immediate planting;(II) Moved to a physically separate, exclusively retail area at the location; or(III) Moved from the production location to a separate location for immediate wholesale or retail resale.2. The current Georgia Citrus Nursery certificate shall be kept on display at the Georgia Citrus Nursery in a location where it is readily visible to the public.(e) Facility Structural Requirements1. All citrus plants must be produced inside an exclusion structure as defined in these Rules.2. To qualify as an exclusion structure, a facility must include, at a minimum, each of the following: (i) Exterior walls and top (I) Any combination of solid surfaces and screening may be used, as long as the structure meets or exceeds USDA-APHIS-PPQ "Interstate Movement of Citrus Nursery Stock From Areas Quarantined For Citrus Canker, Citrus Greening, and/or Asian Citrus Psyllid", including resistance to wind-blown rain.(II) Mesh size for any screening used in walls, doors, vent covers, or other parts of a structure shall not exceed 0.3 square millimeters (e.g., 0.547 x 0.547 mm or 0.5 x 0.6 mm).(ii) Each approved structure must have a citrus free buffer area of at least 100 feet around the exterior of the approved structure. If a buffer area of 100 feet or more is not feasible, a minimum buffer area of 25 feet is allowed if the side of the structure facing citrus nursery plant material is constructed with a water-proof wall, or double-walled screening with a minimum of a 4-inch space, between each screen.(iii) Doors, doorways, and entryways must be designed and constructed to exclude wind-blown rain and pest organisms.(I) All doorways must have a positive pressure air curtain, double entrance with vestibule (i.e., outer door opening into a vestibule then inner door leading to the structure), or other mechanism sufficient to prevent the entrance of any insect pests, both during operation of the door and while the door is closed.(II) All doors must fit against the floor and door frame so that no pest organisms or rain can enter the facility.(III) At minimum, all entrance doors to the facility must have working locks. The facility must be secured (locked) when employees are not present.(IV) A footbath containing a product approved by the Department as effective against citrus canker must be located at each entrance and must be properly utilized on footwear by all persons prior to entering the structure.(V) Vehicles, equipment, and other articles used to handle or move citrus nursery stock must be treated in accordance with USDA-APHIS-PPQ requirements immediately before entering the structure.(VI) The site must incorporate an area for deliveries and shipments.(iv) Except for doors, all exterior openings for cooling pads, fans, vents, or other parts of the structure must be covered with screening as specified above; and(v) The structure perimeter must facilitate drainage away from the structure.3. The owner of the facility is responsible for maintaining the integrity of the facility and ensuring it remains pest-free.(i) Before an exclusion structure is modified in a way that affects the walls, screening, doors, or insect-exclusionary ventilation, the nursery must enter into a compliance agreement with the Department that outlines safeguarding conditions to maintain the facility as insect free.(ii) The Department must be notified immediately if a breach is detected at any time during the life cycle of the citrus stock, from propagation to point of sale.(iii) If the integrity of the structure is compromised or breached, the citrus nursery stock will be subject to immediate Stop-Sale Notice and Hold Order and will not be released from Stop-Sale Notice and Hold Order by the Department until a risk evaluation has been completed.4. Citrus nursery stock may be moved from one structure into another structure on the same site provided the plants in the process of being actively relocated are not subjected via open air exposure to citrus pests and diseases.5. Structures in existence and actively used for growing citrus that do not currently meet the structural requirements of this Rule will be given, upon written request by the owner to the Department, six (6) months from the date of the adoption of this Rule to make the structural modifications necessary to fully comply with this Rule.(f) Citrus Propagation Requirements1. Any citrus nursery stock or budwood source tree found infected or exposed to plant pest infestation shall be subject to immediate Stop Sale Notice and Hold Order.2. Citrus nursery stock grown or distributed in Georgia after January 1, 2020 must be produced in a Georgia Citrus Nursery under the provisions of these Rules.3. All planting, growing, and budding of rootstock or other propagative material, including seeds, shall be in an approved pest exclusion structure.4. In-ground production of citrus nursery stock is not approved. Citrus nursery stock may only be produced on a barrier between the soil and pot (e.g., gravel, horticulture cloth, or tables).5. Citrus nursery stock must be propagated in compliance with the following provisions: (i) Citrus nursery stock may be propagated directly from certified budwood taken from scion trees or increase trees, or citrus nursery stock may be propagated directly from tested, non-certified citrus budwood. Nurseries producing citrus plants using tested, non-certified budwood must enter into a compliance agreement with the Department.(ii) After January 1, 2023, non-certified citrus budwood may no longer be used to propagate commercial citrus nursery stock.(iii) Citrus nursery plants propagated from uncertified budwood prior to January 1, 2023, may be sold until December 31, 2023, only if such plants conform to all of the below requirements.(I) Either the source plants from which the citrus nursery plants' buds were cut or the citrus nursery plants must be sampled and tested for each of the pathogens deemed citrus-related plant pests by the Commissioner and the testing must reveal the absence of those pathogens. Such sampling and testing must have been performed in accordance with the following requirements: I. Testing must have been performed after April 1, 2021; II. Tested samples must have been collected by the Commissioner or the Commissioner's agent in accordance with the USDA-APHIS-PPQ "Survey Protocol for Interstate Movement of Citrus Nursery Stock from Areas Quarantined for Citrus Canker, Citrus Greening, and/or Asian Citrus Psyllid"; andIII. Testing must have occurred at a diagnostic laboratory. The Department will not be responsible for testing, transportation, or other costs related to testing.(II) The grower must include the following statement on each bill of sale: "These plants have been propagated from uncertified budwood but have tested negative for each pathogen declared a citrus-related plant pest by the Georgia Commissioner of Agriculture."(iv) Citrus nursery stock and propagative material must remain within the approved exclusion structure at all times, or if moved outside of the pest exclusion structure, citrus nursery stock must be protected and covered with material designed to prevent exposure to citrus pests and diseases at all times during transit.(g) Scion Trees and Scion Block1. Scion trees must meet the following requirements:(i) Budwood for propagating scion trees must be obtained from a foundation tree.(ii) Scion trees must be propagated and grown in a Georgia Citrus Nursery.(iii) Scion trees must be budded on nursery rootstock which has not been budded previously. If re-budding is necessary, buds from the same source as the original must be used.(iv) Scion trees must be vigorous, productive, and horticulturally true-to-type.2. Scion trees must be held exclusively in an approved pest exclusion structure designated for scion trees. (i) At no time shall any uncertified citrus nursery stock be inside the approved pest exclusion structure.(ii) Scion trees of different varieties and selections must be kept distinctly apart and clearly identified to avoid the mixing of scion trees originating from different source trees.3. Labeling of Scion Trees (i) Each scion tree label must include the name of the selection, the source tree identification number, and the month and year of budding.(ii) A scion tree identification map must be maintained on-site. The map must be made available during an inspection or upon request by the Department.4. Inspection (i) Scion trees must be inspected and tested at least once prior to 12 months post-budding and at intervals not to exceed 36 months for the pathogens listed in these Rules or on the Department's website or any other pest of regulatory concern. The cost of the laboratory analysis of the samples will be borne by the owner of the nursery. The Department will inspect trees for citrus canker and other pests of regulatory concern during facility inspection.(ii) The scion block must be routinely inspected and treated to prevent pests and diseases.(iii) Scion trees found infected with a pathogen must be removed from the protected greenhouse within 10 days of notification of test results by the Department.(iv) The Department may consult with a panel of experts for additional mitigation measures necessary to ensure the integrity of scion trees.5. Upon discontinuing use of a scion tree, the scion tree must be removed from the scion block and may be sold, planted, or destroyed. (h) Increase Trees and Increase Blocks 1. Increase trees and increase blocks must meet the following requirements:(i) Budwood for propagating increase trees must be obtained from a foundation or scion tree.(ii) Increase trees must be propagated and grown in a Georgia Citrus Nursery.(iii) Increase trees must be budded on nursery rootstock which has not been budded previously. If re-budding is necessary, buds from the same source tree as the original bud must be used.2. Increase trees must be held exclusively in an approved structure designated for increase trees or housed with other citrus nursery stock from certified budwood being grown in the approved structure, provided the two groups of plants are kept identifiably separate.(i) At no time shall any uncertified citrus nursery stock be inside the approved structure.(ii) Increase trees may be grown in containers or planted in the ground.(iii) Increase trees of different varieties and selections must be kept distinctly apart and clearly identified to avoid the mixing of increase trees originating from different source trees.3. Labeling of Increase Trees (i) Each lot of increase trees produced from the same lot of budwood from a specific foundation block tree must be labeled for traceability with a unique identification number. The permanent label or tag must include the variety, source tree identification number, and the month and year of budding.(ii) An increase tree identification map must be maintained on site. The map must be made available during an inspection or upon request by the Department. The map must include the location of each group of increase trees by selection in the approved structure, the name of the selection, the number of trees in each lot, source tree identification number, and the month and year of budding.4. Increase trees may be used as a source of certified budwood to produce citrus nursery stock for a period not to exceed 60 consecutive months. The 60-month duration begins on the first day of the month following the month in which the trees were budded.5. At any time, during the 60-month period, the nursery owner may make a request to the Department to convert increase trees to scion trees. (i) The request must be accompanied by laboratory test results received within the past twelve (12) months for the graph transmissible pathogens listed in these Rules or on the Department of Agriculture's website. (ii) The trees must be moved to the exclusion structure described above within five (5) days of receiving approval.6. Citrus trees propagated from increase trees, except trees that have been converted to scion trees as described above, must not serve as a future source of certified budwood.7. Inspection (i) Increase trees must be inspected and tested at least once prior to 12 months post-budding and at intervals not to exceed 36 months for the graph transmissible pathogens in these Rules or on the Department of Agriculture's website or any other pest of regulatory concern. The Department will collect samples for testing according to the sampling plan. The cost of the laboratory analysis of samples will be borne by the owner of the nursery. The Department will inspect trees for citrus canker and other pests of regulatory concern during facility inspection.(ii) The increase block must be routinely inspected and treated to prevent pests and diseases.(iii) Increase trees found infected with a pathogen must be removed from the protected greenhouse within 10 days of notification of test results by the Department.(iv) The Department may consult with a panel of experts for additional mitigation measures necessary to ensure the integrity of increase trees.8. Upon discontinuing use of an increase tree, the increase tree must be removed from the increase block and may be sold, planted, or destroyed.(i) Rootstock 1. All planting, growing, and budding of rootstock or other propagative material, including seeds, must be in an approved pest exclusion structure as defined in these Rules.2. Seed Source trees must originate from a certified clean stock program.3. All rootstock seed planted for propagation must have undergone thermal treatment or other treatment approved by the Department to reduce the risk of citrus infesting pathogens.4. Rootstock produced any way other than from seed: (i) Must have been taken from a tree tested within the previous year, using methods approved by the Department, and found free of diseases quarantined in these Rules; and(ii) The source tree must have been maintained continuously in a Georgia Citrus Nursery.5. Documentation of negative test results described in this paragraph must be maintained for at least four years following distribution of all plants propagated from the source tree and must be available for inspection during normal hours of operation.(j) Micropropagation of Citrus Rootstocks and Plants1. The plant material for initiation of micropropagated cultures must originate from fully tested foundation material.2. Cultures must be re-initiated from foundation material after a maximum of 36 months.3. The plant portion micropropagated must come from non-zygotic embryos or shoots from adult plants.4. Material grown on contaminated media will be rejected. 5. Antibiotics that can mask the presence of microorganisms must not be added to any media.6. Once plants leave culture vessels they must be maintained in approved enclosed structures.7. All movement reports and shipping labels must include the word "micropropagated".(k) Plant Identification and Labeling 1. Each citrus plant sold or distributed within Georgia must have attached to it, or to the container in which it is planted, a waterproof tag or label upon which is legibly printed in permanent lettering:(i) "Grown by [the Production Facility Name]";(ii) "Produced in [State of Origin]" (Postal abbreviation of the state is acceptable); and(iii) "Georgia Live Plant License # [Number]" or nursery license number in the state of origin.2. Unless satisfactory records that readily identify the plant as having been produced in an approved facility are provided, the absence of a tag or label required by this Rule creates a non-rebuttable presumption that the plant is a quarantined article, and the quarantined article will be placed under a Stop-Sale Notice and Hold Order until the owner arranges proper disposition.(l) Inspections 1. The Department will inspect Georgia Citrus Nursery facilities as often as it deems necessary but at a minimum of six (6) times per calendar year.2. Department personnel may inspect the growing practices and take physical and/or documentary samples as deemed necessary of: (i) Compliance with facility structural requirements;(ii) Plants in the nursery;(iii) Insects and plant pests that may be present;(v) Any other item that is related to the Georgia Citrus Nursery Stock Program and citrus plant propagation or production. Ga. Comp. R. & Regs. R. 40-4-26-.06
O.C.G.A. § 2-7-1, et. seq.
Original Rule entitled "Growing Citrus Nursery Stock in Georgia" adopted. F. Dec. 5, 2019; eff. Jan. 1, 2020, as specified by the Agency.Amended: F. May 24, 2023; eff. June 13, 2023.