Xinhua: This season Jacques Matombehad to burn 14,300 U.S. dollars worth of pumpkin that he spent months growing on his farm in Seychelles. There was no other way to stop the disease spreading to his crop. “It was out of control,” he said, standing in a field of crispy pumpkin plants. “You have to burn it.” Disease and pests have become a problem for Matombe and other locals who farm the Aseroyale Plateau on Mahe, Seychelles’ main island. Once cool, trade winds are now warmer, …