(a) Greenhouse, general requirements.

1. (1) Unit of certification shall be the entire greenhouse.

2. (2) Isolation.

   1. (A) Noncertified Rubus species must not exist within the greenhouse.
   2. (B) Noncertified Rubus species must not exist within one hundred fifty-two meters (152 m) or five hundred feet (500’) of the perimeter of the greenhouse.
   3. (C) Weeds that host disease of major concern must be controlled within one hundred fifty-two meters (152 m) or five hundred feet (500’) of the perimeter of the greenhouse.
   4. (D) Insects that vector diseases of major concern should be controlled in an isolation area.

(b) Field, general requirements.

1. (1)

   1. (A) Unit of certification shall be the field or a portion of field.
   2. (B) Any portion of the field that does not meet inspection standards may be delimited if it will not jeopardize the remainder of the field.

2. (2) Isolation.

   1. (A) Noncertifed Rubus species must not exist within one hundred fifty-two meters (152 m) or five hundred feet (500’) of the certified plants.
   2. (B) Weeds that host diseases of major concern must be controlled within one hundred fifty-two meters (152 m) or five hundred feet (500’) of the certified plants.
   3. (C) Insects that vector diseases of major concern should be controlled in an isolation area.