Theáolives for OlioáDeMarcoáare harvested with care in aácareful processáusing no pesticides or harsh chemicals to ruin the original taste of the fruit. Since the olives are fragile and firmly attached to the tree, they are still frequently harvested by hand. Workers balance on ladders and climb into the branches, snatching limbs with one hand and combing with the other with plastic comb heads. They may use small hand tools to strip the branches or use their hands, which they protect by wearing gloves or taping their palms. The most modern method which farmers use to collect the olives is the use of a new machine that grips onto the trunk of the olive tree and shakes it. The vibration of the tree makes the mature olives fall off and leaves behind the un-ripened olives.