* Poland ERM-2 entry seen delayed to 2011
* Poland, Estonia to adopt euro in 2013
* Czechs, Hungary, Latvia, Lithuania to adopt euro in 2014
By Jonathan Cable
LONDON, Aug 12 (Reuters) - It will be 2011 at the earliest before Poland gains membership to the ERM-2 currency grid and another two years before the eastern European nation ditches its zloty currency for the euro, a Reuters poll found.
That new expected date for Warsaw to enter the pre-euro European Exchange Rate Mechanism (ERM2) based on a survey of 31 emerging market experts is one year later than the last Reuters poll of market analysts in April.
Even that date could be postponed as market volatility, a weak currency and high government debt prevent them from joining. Yet the Polish government said just last month it still wanted to join ERM-2 this year.
"Poland could make 2013 but here a combination of government commitment and necessary fiscal adjustment put this target in doubt," said Agata Urbanska, senior emerging markets economist at ING Financial Markets.
Poland, the European Union's largest ex-communist economy, has already raised this year's budget deficit to counter the impact of the global financial crisis and it may rise further yet, leading the International Monetary Fund to call for action.
Along with other criteria, countries seeking euro membership must maintain a government deficit below 3 percent of GDP and the poll found controlling budget deficits and inflation were the biggest hurdles Poland faced before euro adoption.
Once inside ERM-2, a precursor to euro adoption, a candidate country must keep its currency within a trading band of +/- 15 percent around a central parity rate, usually for two years, something which has proved difficult in swinging markets.
"ERM-2 and euro membership will be difficult and more protracted than the market currently expects," said Nigel Rendell at RBC in London.
The poll found it would be 2013 before Estonia adopted the euro and a year later for the Czech Republic, Hungary, Latvia and Lithuania. Bulgaria and Romania are not expected to ditch their currencies until 2015.
These are all unchanged from the April poll.
BALTIC BLUES
As the financial turmoil has battered global markets some policymakers see euro adoption as offering a safer haven than individual widely fluctuating currencies. But others, like the Czechs, suggest flexible currencies create a buffer against economic adjustments from outside and can help buoy growth.
With the crisis shifting the main challenge of convergence from inflation to budget deficits that have spiked over the past year, governments will be forced to make spending cuts starting in around 2011 to meet the Maastricht criteria.
But because convergence for some countries is not seen until the middle of next decade, countries like Hungary, Bulgaria, and the Czech Republic may witness two election cycles, opening potential room for further delays if political elites can not muster the political will needed to meet the criteria.
Analysts said other risks included uncertainty over the eventual length of the financial crisis, currency volatility, and a perception of euro zone enlargement fatigue in the West.
Lithuania had been due to adopt the common currency back in 2007 but was forced to abandon its entry due to high inflation and analysts said this was one of the major hurdles still facing the country and was also an issue faced by Bulgaria and Romania.
Latvia, which like Lithuania could see its economy shrink by almost a fifth this year, has already made savage public sector pay and benefits cuts.
But it still needs to cut around another $530 million from its budget next year under an IMF agreement under which it will try to cut its budget deficit to 8.5 percent of GDP, from an estimated 10 percent this year.
Romania said on Tuesday it would curb spending by 5.5 billion lei ($1.8 billion) this year to meet its new budget deficit goal agreed with the IMF, leaving it at 7.3 percent of GDP, still way above the entry criteria level.
Meanwhile, enlargement fatigue among some EU members has delayed expected dates for some prospective members.
While Croatia was seen joining the EU in 2012 the poll found it would be 2016 before Macedonia, Montenegro and Serbia gained entry, with Bosnia joining in 2019 and Albania in 2020.
Turkey was not seen joining the club until 2020 -- but even that is in doubt.
"The accession of Turkey is rather uncertain, even in the long run," said Attila Bartha at Kopint-Tarki in Budapest.
Turkey began membership talks in 2005 but negotiations have stalled amid disputes over penal reforms, human rights and the division of Cyprus.
(For poll data click on <EMUPOLL30>) (Additional reporting by Mike Winfrey in Prague, polling by Bangalore Polling Unit; Editing by Andy Bruce)