蟑螂是夜行性和喜温性昆虫,喜欢生活在阴暗、温暖、湿度大,便于隐蔽的环境中,昼伏夜出。 寿命一般为 2 年左右,长的可达三年,短的约为 200 天。 蟑螂能忍饥耐渴,一个月不喝水,在有水条件下可三个月不吃东西,照样生存,在 7OC 以下难以生存。 蟑螂的繁殖能力极强,一只成熟的雌蟑螂每隔 7—10 天即可产出一只含有 14—40 粒卵的卵鞘,其卵鞘为胶质体, 20℃-37℃ 之间孵化。温度越高,孵化时间越短,在 30℃ 恒温时,只需 20-30 天,而长的可超过三个月,一只雌蟑螂一年可繁殖近万只后代,最多可达十万只,在极端条件下没有雄蟑螂时,故雌蟑螂也能产卵。 蟑螂的食性很杂,取食各种动物性、植物性、腐败及排泄物质,连纸张、书籍、肥皂、电线、衣物也取食 蟑螂原本是野外生活的一种昆虫,随着人类筑室而居和交流活动,逐渐成为在地球上广为分布的居室昆虫。凡有人类活动的地方都有蟑螂。 我国目前最常见的蟑螂有美洲大蠊、黑胸大蠊、德国小蠊等。 25℃ 左右是蟑螂最佳活动期。 由于城市化的发展,人群的密集,食物的丰富,建筑的不断增多,交通的便利和物流的迅速增加,给蟑螂提供了十分理想的环境。同时室内的环境也不断改善,空调器的广泛使用,居家的装修,取暖器的增多使用,都给室内的蟑螂提供了良好的越冬环境,所以室内蟑螂越来越多。 由于各行业和快速发展,给蟑螂提供了十分优越的生存环境,蟑螂密度也在成倍增长,以北京为例, 1978 年 ~1988 年 10 年间,蟑螂的密度增加了二十几倍,而 1988 年 —1994 年仅 6 年蟑螂的密度就增加了二十七倍之多。
German cockroach Body length between 2.2 to 1.1cm , its obvious feature is: Chest have two black zone veins, each cockroach could increase the number of 3.0000 one year. German roach can propagate the kind germs more than 40, such as parasite egg , Yi liver virus , infantile paralysis, with liver cancer relevant yellow plain in color etc. The reason that breeds so swiftly is hard to believe: Research discovered, German Cockroach like the environment that cooled in summer, warm in winter, room temperature is between 20 to 30 Celsius which is most conducive for growth. Open hospital, guesthouse, restaurant and the high-grade building of official business of central air-condition therefore all the year round, open family of air-condition even to become their settle land. German cockroach look for meal evening, conceal in daytime in each place in chink: Since body form is flat, it can crawl cross the chink of 1.6 millimeters, also spread through wall hole and door window chink; German cockroach like the place such as the socket of electrical equipment, copier and the computer in office, even window sill wraps , little chink of door, may inhabit a region go up 1000; German cockroach feeding habits is miscellaneous, "recipe" is extensive, nearly eat anything , it can meet each kind of environment. |
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