<prompt> Translate the following text to EnglishMnamo mwaka wa 1852, mizabibu ya kisiwa hicho iliharibiwa na kuvu, na asilimia 90 ya mazao yote ya mzabibu yaliharibiwa.  <response>: In 1852 the islands precious vines were blighted by mildew, wiping out an estimated 90 percent of the total crop. 