Researchers from CABI says that a leaf beetle, Ophraella communa, can help relieve more than 2 million sufferers of allergies in Europe while also saving more than Euro 1 billion in health costs. The bug can significantly reduce pollen from from common ragweed (Ambrosia artemisiifolia). User MarioKartFromHell, in the Reddit Science subreddit, 22 Apr 2020
Biological weed control to relieve millions from Ambrosia allergies in Europe User Fosse22, in the Reddit Science subreddit, 21 Apr 2020