Syngenta (SYNN.VX) and unwanted suitor Monsanto (MON.N) squabbled over an earnings report from the Swiss pesticides maker on Thursday, with both sides claiming it strengthened their case in a $45 billion takeover battle. Monsanto wants to combine its world-leading seeds business with Syngenta’s own seeds and pesticides. Syngenta has rejected the proposal and refused to open its books, despite the offer of a $2 billion cash payment should the transaction fail to win regulatory approval.