沃尔玛将提供无人机杀虫

Walmart’s patent* filings hint that it may see a future where farmers use its drones to not only spot crop problems but selectively apply chemicals or even disperse pollen* to bring shoppers the freshest and cheapest food possible.

The world’s largest retailer applied for six patents last year on drones that aim to prevent damage to crops, control pest attacks on farms and cross-pollinate* plants, according to U.S. Patents and Trademark Office documents that were made public last week.

Groceries make up 56 percent of the company’s total revenue, and Walmart may see drone technology as one way to get food from farms to store shelves faster and more cheaply to compete with Amazon.com, following its purchase of Whole Foods Market last year and the expansion of discount chains like Aldi and Lidl.

In one application, Walmart seeks to patent a system that would use drones to identify crop-damaging pests and then dispense insecticides* on the critters*.

Using technology to precisely apply pesticides* rather than spraying entire fields can benefit the environment and save money for farmers.

As part of a sustainability* push in recent years, Walmart has also worked with suppliers to reduce the amount of fertilizer* used to grow crops.(SD-Agencies)