Abetz rallies against Liberal, Greens deal

Dumped cabinet minister Eric Abetz has written to Liberal Party president Richard Alston raising concerns over a possible preference deal with the Greens.

Former minister Eric Abetz is warning the Liberals not to secure a preference deal with the Greens. (AAP)

Dumped cabinet minister Eric Abetz is warning his party not to secure a preference deal with the Greens in Victoria.

Senator Abetz has penned his concerns in a letter to Liberal Party president Richard Alston.

"The way you allocate preferences says a lot about what you as a party stand for and what matters to you," he told ABC radio on Monday.