摘要
蔗扁蛾Opogona sacchari在浙江省慈溪市1 a发生3代,危害植物有14科25种,以幼虫在寄主内越冬,成虫发生期分别为4月下旬到6月上旬,7月上旬到8月中旬,9月上旬到11月,幼虫危害期分别为5月上旬至8月上旬,7月上旬至10月中旬,9月中旬至11月下旬。成虫夜间羽化、活动,需补充营养。幼虫7龄,室内可以用生番薯Ipomaea batatas片为人工饲料进行饲养,幼虫有相互残杀习性。在幼虫期,用10%可湿性吡虫啉粉剂700倍液或1.8%阿维菌素乳油1 500倍液喷雾防治蔗扁蛾,效果较好;用1.8%阿维菌素乳油稀释1 000倍浸泡受害巴西木0.5 h防治蔗扁蛾,3 d后平均死亡率达97.1%。
There are three generations per year of the Opogona sacchari at Cixi City in Zhejiang Province. Twenty-five hosts belonging to 14 families were damaged by the moth. The larvae spent the winter in the host. The adult moths appeared from the late April to the early June, from the early July to the mid-August, from the early September to the late November. The periods for larva damage were from the early May to the early August, from the early July to the mid-October, from mid-September to late November. The emergence and activity of the adults happened in the night, and the nutrition must be supplied for the adults. The larva had 7 instars and the larvae could be fed by the fresh potato as artificial diet in the laboratory. The behavior of mutually massacres of the larvae was observed. It was an effective way to control the larvae that using 10 percent of imidacloprid diluted 700 times or 1.8 percent of avermectins diluted 1 500 times for spraying plants. When taking 1.8 percent of avermectins diluted 1 000 times to soaking injured Dracaena fragrans, death rate of Opogona sacchari was 97.1% after three days. [ Ch, 1 tab. 6 ref. ]
出处
《浙江林学院学报》
CSCD
北大核心
2008年第3期367-370,共4页
Journal of Zhejiang Forestry College
关键词
森林保护学
蔗扁蛾
生物学特性
药剂防治
浙江
forest protection
Opogona sacchari
biological characteristic
chemical control
Zhejiang
