Criticism about film in asparagus cultivation
Dark film will store heat from sunlight
But environmentalists criticize the heavy use of film: they mess up the landscape. In Brandenburg, the Nabu Conservation Union fears that breeding grounds and insects are disappearing for birds. And: there is waste. The association of southern German asparagus farmers emphasizes that the film can be used for up to twelve years and can then be recycled into garbage bags. They reduce pesticide use as there are less weeds. Anyone looking for asparagus, grown without the use of foil should go to farmers nearby. Bio asparagus may also be cultivated under foil.
Source: Stiftung Warentest