Why Do We Need Insects?

Many years ago, while working in a teen camp in Alaska, I heard a skeptical teenager disparage God’s existence by saying that if God existed, He certainly wouldn’t have made mosquitoes. I have heard similar comments about ticks, hornets, lice, locusts, spiders, and stink bugs. I suspect we have all had times when we were unhappy with annoying bugs, yet when you examine the role of insects, you realize they are critical to our own existence. The well-known entomologist E. O. Wilson said, “If human beings disappeared tomorrow, the world would go on with little change, but if invertebrates were to disappear, I doubt the human species could last more than a few months.” Why do we need insects?

Insects pollinate plants, aerate and fertilize the soil, decompose dung, and the bodies of things that have died. They control pests contributing 70 billion dollars every year to our national economy. Ninety-six percent of land-dwelling birds feed their young on insects, consuming approximately 400 to 500 million tons of insects. Most creatures in and around lakes and streams feed on insects, including fish and bears.

Why do we need insects? Humans are already seeing the cost of eradicating them. There are 68 species of bumblebees and roughly a fourth of those are in danger of becoming extinct. In Europe, the data shows a 76% drop in insects, including bees, beetles, lacewings, and katydids. The loss of pollinating insects has sharply affected the growing of many cash crops, and scientists are studying the effects of insecticide use.

Before we castigate God for what He has created, we need to be sure we have all the facts. We should learn what each creature does and how it contributes to our own well being. I dislike mosquitoes as much as the next person, but a majority of mosquitoes are pollinating insects. I am reactive to a bee sting, but bees contribute to much of what I eat. From our earliest existence, God has challenged us to take care of what He created. (See Genesis 2:15.) That includes caring for and protecting the agents that allow Earth to be hospitable to our existence.

— John N. Clayton © 2020

Data and quote from National Wildlife magazine, June-July 2020, pages 26-31.