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一、大叶黄杨尺蠖(Abraxas miranda Butler)是重要的园林害虫之一,为害卫矛科的两种植物,即:大叶黄杨与爬行卫矛。在中国分布于江苏、浙江、贵州及东北等地。 二、大叶黄杨尺蠖在上海一年发生三代,但在室内饲育可完成四代,以蛹在土中越冬。第一代成虫自4月上旬开始羽化,幼虫自4月下旬开始为害,至5月下旬进入蛹期。第二代成虫自6月上旬开始羽化,幼虫自6月中旬开始为害、直至8月下旬进入蛹期。第三代成虫自8月中旬开始羽化、幼虫自9月上旬开始至11月中旬进入蛹期。 三、根据室内饲养,成虫的寿命第一代雄虫平均7.8天,雌虫平均9.6天;第二代雄虫平均11天,雌虫平均15.4天;第三代雄虫平均9天,雌虫平均10天;第四代雄虫平均12天,雌虫平均14.5天。卵期第一代为14.5天,第二代8.6天,第三代9天,第四代12天。幼虫期第一代平均34.9天,第二代平均23.4天,第三代平均25天,第四代平均58天。蛹期第一代平均11.4天,第二代平均45.8天,第三代平均15.9天,第四代为越冬蛹。 四、成虫飞行力很弱,白天栖息在大叶黄杨树下或附近草丛中,晚上活动,趋光性不强。成虫羽化多在下午3—5时,羽化后即可交尾,一般交尾时间为6—7小时,最长可达11小时,交尾后7小时即行产卵,每一雌蛾可产卵360余粒。 五、幼虫共五龄,羽化后3、4小时就开始取食,受?
First, the Euonymus japonicus (Abraxas miranda Butler) is one of the important garden pests, the two plants for the Celandidae, namely: Euonymus japonicus and Creeper. Distributed in China in Jiangsu, Zhejiang, Guizhou and northeast China. Second, Euonymus japonicus occurs in Shanghai a year in three generations, but in the indoor breeding can be completed four generations, the pupal in the soil overwintering. The first generation of adults began to emerge in early April, and the larvae started to harm from late April to late pupa in late May. The second generation of adults began to emerge in early June, the larvae began to harm from mid-June until the end of August to enter the pupal stage. The third generation of adults began to emerge from mid-August. The larvae entered the pupal stage from early September to mid-November. Third, according to indoor feeding, adult life of the first generation of male average 7.8 days, the average female 9.6 days; the second generation of male average 11 days, female average 15.4 days; third generation of male average 9 days female An average of 10 days; the fourth generation of male average 12 days, the average female 14.5 days. The first generation of egg stage was 14.5 days, the second generation of 8.6 days, the third generation of 9 days, the fourth generation of 12 days. The first generation larvae average 34.9 days, the second generation of an average of 23.4 days, the third generation of an average of 25 days, the fourth generation of an average of 58 days. The first generation in pupal stage averaged 11.4 days, the second generation averaged 45.8 days, the third generation averaged 15.9 days, and the fourth generation was wintering pupae. Fourth, adult flight force is very weak, daytime habitat in the euonymus or under the grass, night activities, phototropism is not strong. Females emerge mostly in 3-5 o’clock in the afternoon, can be copted after eclosion, the general mating time is 6-7 hours, the longest up to 11 hours, 7 hours after mating to lay eggs, each females can spawn more than 360 . Fifth, a total of five larvae, 3,4 hours after emergence began feeding, by?