Hi, welcome to Just Answer. I will help you with your question.
Yes, you can get this removed. A remark like this, if untrue, would be defamatory and you would almost certainly obtain an injunction to force the blog to be removed if you applied to the Court for it. However, it is often unnecessary to go that far, as if you write to the hosting company for the domain concerned, they would ensure it is removed for you if the website itself didn't agree to remove it.
This is because they, facilitating the publication of defamatory material, would also be liable and would wish to avoid the potential for a claim against them.
This is the position under English law.
I hope this answers your question. If you need further information, either now or later, just let me know and I'll gladly help out.
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