Newswise — Witchweed, a parasitic weed that can strangle crops, has been nearly extinguished in the United States. but in Africa and Asia, it still grows rampantly, posing a threat to crops and forests. One estimate places agricultural losses due to a single variety of witchweed at $1 billion per year. A published symposium in the journal Weed Science discusses several species of parasitic weeds, including witchweeds,...

Apple’s stock continued to slide on Tuesday morning as some analysts suggest AT&T’s earnings point to a possible rare miss for the Cupertino, California-based company. Wall Street expects Apple to report iPhone channel sales of 32 million units when it posts its earnings after the market closes on Tuesday, but several analysts have made last-minute adjustments to their...