When David Bruntz, vice-president of the US Meat Export Federation, recently began looking for drones to monitor the cattle on his Nebraska ranch, he found that only one brand offered a “reasonably priced” solution: the Chinese tech giant DJI.The Shenzhen-based company already dominates the US drone market, and its products are now rapidly being adopted across the agricultural sector as the firm rolls out specialised solutions for sowing fields, spraying crops and tracking livestock.“It’s...