SINGAPORE – Ordinary cell phones have emerged as a tool to combat agricultural pests. Using the mPest Insect Sound Android mobile application, farmers take their cell phones into the field to pick up sounds of insects on their land. The sounds are analyzed to detect which insects are present; if any pests are there, farmers can use highly targeted methods to combat insects that are reducing crop yields. Because the technology is entirely based on audio, farmers can use it at night, when visual detection of insect pests is difficult. Use of mPest by individual farmers is just one feature……