Photo credit should read /AFP via Getty Images AFP via Getty ImagesPest control expert Rentokil Initial’s share price collapsed on Thursday as it warned of toughening trading conditions in North America. At 512p per share, the FTSE 100 share was last dealing 13.8% lower. Organic revenues rose just 2.2% in Rentokil’s critical North American marketplace. Strength In Other RegionsElsewhere, Rentokil said it had witnessed a “sustained strong performance” in its other geographies in the last quarter. Organic sales in its European market (which includes Latin America) rose 9.5% year on year.