UPDATE: PGG Wrightson shares climb to four-year high as first-half earnings beat estimates

UPDATE: PGG Wrightson shares climb to four-year high as first-half earnings beat estimates
(Updates with shares, broker comment, briefing) By Paul McBeth Feb. 24 (BusinessDesk) - PGG Wrightson shares rose to a four-year high after the rural services firm controlled by China's Agria Corp lifted first-half earnings 47 percent, beating estimates, on improvements in its retail, livestock and seed & grain units. Net profit rose to $19.7 million, or 2.6 cents per share, in the six months ended Dec. 31, from $13.4 million, or 1.6 cents, a year earlier, the Christchurch-based company said in a statement. Operating earnings before in...