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 and seen by Reuters.
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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. Another suggests the use of drones carrying pollen dispensers to successfully pollinate crops.
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 because it can pollute the environment.
Walmart spokeswoman Molly Blakeman said the company always looks for new ways to serve shoppers better but had no comment on the filings. The retailer applies for dozens of patents a year and many do not result in commercial products.
Walmart previously applied for a patent involving drones that could monitor crops' growing conditions and send data to stores about when and from where produce might arrive, said Zoe Leavitt, a senior analyst from data intelligence firm CB Insights, which analyzes corporate patent filings.
The series of six applications indicates Walmart is looking into farming more seriously, she said. Walmart has so far applied for 46 patents for using drone technology, mostly to facilitate its delivery and logistics operations, or for use within warehouses to do things such as track inventory, according to data from CB Insights.
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