Young vines are sometimes covered with milk cartons to protect them from animals.
Answer: True.
Milk cartons are placed over newly planted young grapevines to protect them from caterpillars, gophers, and rabbits (who, Peter Rabbit notwithstanding, much prefer grapevines over lettuce). Lest you think winemakers must drink oceans of milk to have enough cartons to outfit their new vineyards, the milk cartons are actually misprinted rejects from carton companies.