And other insects originated in the Devonian, as scavengers hi nocturnal, living in caves. Stand the test of hot and cold, so far is still very widely distributed. Cockroaches are one of the oldest on the planet, insect guard leopard, worked with dinosaurs living in the same era. According to fossil evidence shows that primitive cockroach about 400 million years ago in the Silurian appear on Earth. Fossil cockroach we found or discovered from coal and amber Wei leopard cockroaches cockroach medicine, and there is not much difference in each cabinet. Hundreds of millions of years, it's no big change in appearance, but the vitality and resilience is increasingly tenacious guard leopard thermal aerosol, has been propagated to the Guardian today leopard propoxur deltamethrin, widely distributed in every corner of the world. It is worth mentioning that, by picking the head of a cockroach can live nine days, nine days after the cause of death is excessive hunger. Most of them looks similar, but careful observation can still see different. The current classification of scholars cockroaches into 6,000 species, of which about 50 species are pests, for example, we have a common Asian cockroach. Also American cockroach (Periplaneta americana), German cockroach (German cockroach), brown cockroaches and cockroach in Australia is also very widely distributed. China has about 200 species, common indoor cockroach there are about 10 species vary throughout the country. Common German cockroach and American cockroach. Wei leopard cockroach medicine, health leopard, Fuzhou Shi Jie pest control provided by the Environmental Technology Co., Ltd. Fuzhou Shengwei. Environmental Technology Co., Ltd. Fuzhou Shengwei (www.fzsw.com.cn) strong, credible, in Fuzhou, Fujian insecticide Miehai industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Fuzhou Shengwei and you hand into the brilliant, for a better future!