Opinion by
Before this Court is an appeal by Wayne Rehm, the owner of Commonwealth Pest Control (Petitioner) from an order of the Secretary of Agriculture (Secretary) imposing a fine of $500.00 for a violation of Section 8(e) of the Pennsylvania Pesticide Control Act of 1973, 3 P.S. §111.28(e) (Act).1
Petitioner was hired by Francis Mazzola (Mazzola) for the purpose of performing preconstruction termite treatment to the property where Mazzola intended to build his home. On approximately April 15, 1987, Petitioner performed the termite service using a termite pesticide chemical known as Gold Crest C-100. At that time, only the foundation walls to the home were constructed. The foundation consisted of four cinder block walls that were capped at the top closing the holes.
As found by the Secretary, the proper application of the chemical required at least two steps: “The first was to treat the ground around the foundation walls. The second was to pour the chemical into the top of the cinder block which permitted the chemical to flow down to the ground and complete the soil treatment.”2 In order for Petitioner to apply the chemical, it was necessary to break the seal at the top of the cinder blocks where the blocks had *533been capped by the contractor. Petitioner arranged for the construction foreman to open the capped blocks by punching holes in the caps. Neither Petitioner nor the construction contractor ever closed these holes after the chemical was poured into the cinder blocks.
A formal complaint was made to the Department of Agriculture (Department) resulting in a penalty being assessed against Petitioner for a violation of Section 8(e) of the Act. Petitioner then requested a formal hearing before the Department. A hearing was held before the Department’s Hearing Examiner who found that Petitioner had failed to reseal the holes in the concrete blocks in violation of the labeling directions for posi-construction use of Gold Crest C-100. The Hearing Examiner recommended that a $500.00 penalty be assessed against Petitioner. That recommendation was adopted by the Secretary. This appeal ensued.
Section 8(e) of the Act provides:
No person shall use, or cause to be used, any pesticide inconsistent with its labeling or to the regulations of the secretary if such differ from, or further restrict, the labeling of the pesticide (Emphasis added.)
Petitioner contends that the Secretary’s finding that he administered the pesticide in a manner inconsistent with its labeling is not supported by substantial evidence.3
The Secretary based his decision on his finding that Petitioner treated the elements of the home in their post-construction phase. The Secretary concluded that the home was in a post-construction phase because the four walls that had been treated were completed and *534capped. Under the product’s preconstruction labeling directions there are no instructions as to how to treat drilled holes in capped blocks. Those instructions are found only under the heading of posi-construction treatment, wherein it states that the drilled holes should be plugged. Thus, it is apparent that the instructions applicable to this situation were those involving post-construction.4 Therefore, we uphold the Secretary’s determination that Petitioner violated Section 8(e) of the Act,5 and affirm the order of the Secretary imposing the penalty.
Order
Now, March 31, 1989, the order of the Secretary of the Department of Agriculture in the above-captioned matter is hereby affirmed.