DUBUQUE, Iowa (AP) – Deere & Co. plans to lay off 105 more workers in Dubuque. The company told workers Friday at the John Deere Dubuque Works that the layoffs will take effect April 6. It would be the third round of layoffs at the plant in the past few months. In October the company said more than 110 workers would be laid off by Nov. 18. In December the company announced that nearly 60 workers would be laid off effective Jan. 6. A company spokesman didn’t immediately return messages Monday from The Associated Press.