"The right-wing government is in danger. Arab voters are going to the polls in droves. Left wing organisations are bringing them in buses," he warned in a message on Facebook.
Netanyahu's message on Facebook came shortly after the Joint List of Arab parties announced that as of 11 AM, 10 per cent of Israeli Arabs had voted, as opposed to 3 per cent at the same time in the last election.
"Go to the polls, bring your friends and family, vote Machal (Likud) to close the gap between us and Labour (Zionist Union)," he said.
"With your help and God's help, we will form a nationalist government that will protect the State of Israel."
Four Arab parties are fighting under one banner for the first time and they could become a factor in the coalition- building. Israeli Arabs make up 20 per cent of the population.
Arab lawmaker Ahmed Tibi responded to the Prime Minister's comments saying "he is in a panic".
Netanyahu later said, "what's wrong is not that Arab citizens are voting, but that massive funds from abroad from left-wing NGOs and foreign governments is bringing them en masse to the polls in an organised way, thus twisting the true will of all Israeli citizens who are voting, for the good of the left."
The SMS included a link to a Channel 1 news report that Abbas encouraged Arab lawmakers to form one party and recommend 54-year-old Zionist Union leader Isaac Herzog as the Prime Minister. Herzog has promised to repair ties with the Palestinians.
Netanyahu had last week alleged that "tens of millions" of dollars were being spent by unspecified foreign governments and tycoons to topple him.
