Where do insects hide in winter?

During the severe cold winter, trees withered, and the insects that harmed crops and were active in the past disappeared. Could it be that they couldn’t withstand the severe cold and died? No, it's not that simple. In fact, whenever winter comes, most insects enter the wintering period and are no longer active. No matter how many generations of insects can occur in a year, when environmental conditions are unfavorable to them, there will be a period of stagnant growth and development, which is "dormancy". This period is often during hot summer or cold winter. Therefore, This period is also called summer or winter.

Remember the nearby overwintering grounds (Photography by Li Hu) Overwintering stink bug nymphs under fallen leaves (Photography by Li Hu) Overwintering butterfly chrysalises Overwintering grubs (larvae of scarab beetles) Entomologists have conducted long-term observations and Research has finally revealed part of the secret of how insects survive the winter. First, it is the accumulation of nutrients. Insects are busy eating a lot of food before entering the winter, which gradually increases the fat content in the body to compensate for the metabolic consumption when there is no food supplement in winter; secondly, it reduces the water content in the body. Once the living tissue is frozen, the expanded ice Crystals are bound to damage cell membranes and cause fatal trauma; the most important thing is that insects can produce a large amount of "antifreeze" to lower the freezing point of liquids in the body, thereby improving cold resistance.

Insects can be found in one or more of the stages of eggs, larvae, pupae or adults, under litter, rocks, bark, soil cracks, or even in human houses. After escaping the long winter, when spring comes and the harsh conditions disappear, you can recover and continue the journey of life.