P.E.I. environment officials say plastic materials used for fumigation of strawberry plants must be properly disposed. (CBC)

P.E.I. environment officials have ordered Westech Agriculture in Alberton — which grows strawberry plants — to properly dispose of all the plastic tarp material used during fumigation.

A directive was ordered in late May after several complaints from residents in the area.

Investigators found tarp material on Westech property. 

The company had until June 13 to clean it up, said Wade MacKinnon, manager of the investigation and enforcement section of the Environment Department.

"We required Westech to provide us with proof of the disposal through waste slips from the Island Waste Management sites," said MacKinnon. "We did receive waste slips from Westech that said they removed in excess of six tonnes of plastic tarping material used in the fumigation process."

Officer returned to Westech this week and found more material that will have to be removed, said MacKinnon.

MacKinnon said if the work still isn't done by the end of the week, charges could be laid under the pesticide control act. 

CBC News contacted Westech for a comment. But so far no one has responded.