The former Ukip leader hit out at the Foreign Secretary suggesting heavy words over a microphone meant little compared to taking part in diplomatic discussions in Moscow.
Mr Johnson had been due to fly to Moscow on Saturday to meet his Russian counterpart, Sergei Lavrov, to vent British anger over Vladimir Putin’s military support for Bashar al-Assad, but changed his plans.
Speaking on his LBC show, Mr Farage said: “Quite why Boris is happy to speak to the microphone condemning Putin’s Russia but he doesn’t seem to have the guts to want to go there himself and talk to them, seems to me he’s rather sub contracted that out to Rex Tillerson and the USA.
Nigel Farage said he did not want the UK to be America's "poodle"
I want us to be close friends and allies with America but I don’t want us to be America’s poodle
“I’m a supporter of Donald Trump, I’m nervous about these developments. I’m a supporter of Donald Trump, I want us to be close friends and allies with America but I don’t want us to be America’s poodle.
“It seems to me that Boris, by not going, by leaving it all to the Americans, effectively that is what you’re doing.”
The Kremlin accused the Foreign Secretary of “making up absurd excuses” after he released a statement announcing he would step back from diplomatic discussions, leaving US Secretary of State Mr Tillerson to deliver “a clear and coordinated message” to Mr Putin.
After a phone conversation with Mr Tillerson on Friday evening, the Foreign Secretary said “developments” had “changed the situation fundamentally”.
Brexit debate in pictures: Farage blasted by EU boss Wed, April 5, 2017
The debate in the European Parliament in Strasbourg will focus on key issues of the Brexit talks including reciprocal rights for EU citizens, the peace process in Northern Ireland and trade
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Nigel Farage gestures during speeches at the European Parliament in Strasbourg, eastern France
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Instead of travelling to Moscow, Mr Johnson said he would concentrate on building “coordinated international support for a ceasefire” at a G7 meeting in Italy on Tuesday.
But critics said he had “allowed his diary to be managed from across the pond”.
Moscow officials reportedly speculated Mr Johnson had been “ordered” to cancel his trip by Washington, in order to avoid upstaging Mr Tillerson.