Sanzaar duty judicial officer Chris Morris gave Nadolo, who pleaded guilty to the post-match citing, a two-week "discount" on the standard four-week suspension for what he described as a "low-end" offence because of his early plea, good disciplinary record, and the fact it as reckless rather than deliberate.
But Morris added: "I took into account World Rugby memorandums about lifting tackles and the need to deter this very action from the game. As such I found it necessary to add two additional weeks to the recommended sanction.
"The player is accordingly suspended from all rugby for four weeks until 21 May 2016 which effectively is a three-match Super Rugby suspension. We were provided with proof that he would have been selected to play in a club match on 30 April 2016, which the player will also miss as a result of the suspension."
Nadolo, who scored a try and laid one on for Israel Dagg in his team's 40-14 win over the Brumbies in Canberra on Sunday, is an important part of the Crusaders' attack, but Blackadder will take comfort in knowing his team no longer rely solely on the 28-year-old for his team's momentum.
The return of Dagg to fullback has added another threat, while Jone Macilai, a fellow try-scorer at GIO Stadium, impressed with his pace and awareness. Johnny McNicholl, another speedster, is also due to return from a toe injury.