The applicant shall be responsible for the selection of the location and the proper maintenance of a planting being grown under the provisions of this Part. He shall be responsible for maintaining the identity of all plant material, entered in the program, in an approved manner.

Each planting shall be located in an area where contamination by soil-borne virus diseases of plants is not likely to occur. Each planting shall be located on a site previously approved by the department.

Treatment to eliminate soil-borne pests in a manner approved by and under the supervision of the department may be required in any planting area at any time. Annual treatment with an approved nematocide may be required in each of the following planting areas to control nematodes introduced through cultural practices.

Any planting entered in this program shall be kept in a vigorous growing condition, and pests shall be kept under intensive control. Suitable precautions shall be taken in cultivation, irrigation, movement, and use of equipment and other farming practices to guard against spread of soil-borne pests to plantings entered in this program. Any plants found to be off-type shall be removed from any planting in an approved manner. Plant materials, produced under the provisions of this Part shall be stored, heeled-in, or calloused in media, beds or storage area approved by the department. The department may require such treatment as may be necessary to protect against infection or infestation with pests.