Answer:

I guess the application method by hands is more harmful. As pesticides are some sort of chemical substances which are used to kill insects and other sort of pests in any kind of plant. And we also know that pesticides are chemical substances.So when pesticides are typically applied by hands it can damage your palm skin.After applying pesticides you wash your hands. But, Do you know that even after washing little amount of pesticides are left on your palm?? And by using that hands you cook food then eat it. Then, you will fall sick as well as your family members. So, isn't it harmful to apply pesticides by using your hands??