Why do insects disappear in the fall?

Answer 1

The question is not "Where are the insects?" but rather "Are they disappearing?" In New England where I have lived for 50 years, the answer is yes. Car windshields and grills are clean most of the summer. We used to have to vacuum moths and other insects from between the screens of our house windows. Not now. Porch lights used to besurrounded by many varieties of interesting moths and we would love to look at the window screens and door screens to see these beautiful creatures. The hundreds of butterflies that used to fly like winged flowers in the meadows during my childhood are gone. Bird species are fast diminishing as well.

Last year I spoke to a young man who had driven coast to coast without having serious bug juice on his windshield. I have walked around parking lots inspecting cars (do this yourself) throughout the northeast and I see the same thing: Clean windshields, clean grills. This is very troubling.

Here in Dallas, TX my fruit trees and flowering shrubs are blooming, but there are no pollinators yet. There are no insects at all, that I have seen outside for several days, that I can remember. I am not sure if there is some poisoning here in Frisco, north of Dallas, or if there has just been a die back from the last warm spell hatching of insects, and the pollinators haven't come out yet for the spring.

Answer 2

Insects can disappear in the fall due to factors like cold temperatures, shorter days, and lack of food. Some insects, such as butterflies and dragonflies, migrate to warmer regions or overwinter as eggs, larvae, or pupae to survive the winter. Others die off as part of their natural life cycle, with the next generation emerging in the spring.

Answer 3

Because this