Deals of the day- Mergers and acquisitions
(Adds Deere, Pfizer, Pershing Square Capital Management, Spirit Pub, Alstom, Procter & Gamble, Total, ZF Friedrichshafen, WSE, Jost Group, Grupo Oi, Eurobank Ergasias, UniCredit and Telefonica)
Sept 23 (Reuters) - The following bids, mergers, acquisitions and disposals were reported by 2000 GMT on Tuesday:
** Deere & Co, the world's largest farm equipment maker, said it was exploring strategic options for its low-margin crop insurance business and had hired Citigroup as its adviser.
** Pfizer Inc has approached Dublin-based generic drugmaker Actavis Plc to express its interest in an acquisition, Bloomberg reported, citing people with knowledge of the matter.
** Billionaire William Ackman-backed Pershing Square Capital Management said that it would sue botox-maker Allergan Inc if it went ahead with a deal to buy drugmaker Salix Pharmaceuticals Ltd.