Wasps earn stripes as Swat team against pests


They can ruin picnics, scare children and sting thousands of people a year, but scientists say there are good reasons to cherish wasps.

They have found that the common wasp plays a vital role in controlling the pests, from greenfly to caterpillars and flies, that plague gardens and farms. Without them, they say, garden plants and crops would be stripped bare.

“Vespula vulgaris, the common wasp, is a top predator, and [the species can] capture up to 4.8m prey loads, weighing 8.1kg, per hectare [7.2lb per acre] each season,” said Seirian Sumner, an entomologist at Bristol University...................Read more

 

Source: The Times


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