Cockroach breeding is sexual reproduction and asexual reproduction combined. A mature female cockroaches every 7--10 days to output one containing 14--40 eggs egg sheath, the sheath of its gelatinous body egg hatching between 20 ℃ -37 ℃. The higher the temperature, Fuzhou off four victims, the shorter the incubation time at 30 ℃ constant temperature, just 20-30 days, and long may be more than three months, a female cockroach can breed nearly 10,000 offspring a year, up to 100,000 only, when there is no male cockroaches under extreme conditions off four victims of drugs, female cockroaches can spawn. In other words, a lot of female cockroaches mate once, will hermaphrodite, without mating, spawning can be continuous. : Nymph cockroach egg cases just hatched nymphs are gathered in the sheath surrounding the egg, white, after the color gradually becomes deeper, and spread out the activities of the company off the four victims, nymph-like shape adult worms only small, no wings, immature sexual organs. Nymph slow development. Must undergo molt several times, growing up, the number of antennae and tail section shall also with age and growth. After the last molt nymph, wings, feather for adults. Newly emerged nymphs and adults just molt also was white, after the color gradually become darker, and thus in a population, we see a cockroach can also be due to environmental conditions. Nymph longer period, usually lasted about 30 to 450 days. After losing appendages nymph or damage antennae, may be in the next instar molt again regeneration. These injuries will increase the number of renewable molting. Off four victims company off the four victims _ _ Shi Jie, Fuzhou, Fuzhou pest control provided by Shengwei Environmental Technology Limited. 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!