1, the earth's ecosystem will change. Mosquitoes are food sources for many carnivores, including birds, bats, amphibians and other insects. The disappearance of mosquitoes may reduce the food sources of these predators, thus affecting their population.

2. The extinction of mosquitoes will have an impact on the wetland ecology of the earth. As we all know, mosquito larvae like to live in water, and they will participate in the decomposition of organic matter and nutrient cycle, which plays a vital role in the health and balance of underwater ecosystem. If mosquitoes become extinct, this ecological balance may be destroyed.

3. The spread of some diseases will decrease. Mosquitoes are vectors of many infectious diseases such as malignant malaria, dengue fever, yellow fever, West Nile virus and Zika virus. The extinction of mosquitoes will significantly reduce the spread of these diseases, thus reducing the morbidity and mortality of these diseases to humans and animals.

4. It will have an impact on plant pollination. Although mosquitoes are not the main pollinators, some plants are pollinated by mosquitoes. The extinction of mosquitoes may affect the reproduction of these plants.

The biodiversity of the earth will disappear. Mosquitoes promote the maintenance of biodiversity to a certain extent, and their disappearance may lead to the decline of biodiversity, thus breaking the ecological balance.

6. It may have potential unknown influence. The ecosystem of the earth is complex, and the disappearance of mosquitoes may have some unpredictable consequences, which may have a positive or negative long-term impact on the environment and human society.