摘要
黑翅竹蝗在云南主要危害热性丛生竹.用调查、饲养和野外定点观察相结合的方法对其生物学特性进行研究,结果表明:黑翅竹蝗在云南思茅1年1代,以卵在土内越冬,次年5月中旬蝗卵开始孵化,若虫共5龄,在竹冠下杂草中取食和活动,蝗蝻于6月下旬至7月中旬羽化为成虫,成虫8月上旬开始交尾,8月下旬产卵,雌雄性比为0 9∶1.查明了该虫主要危害的寄主竹种有版纳甜龙竹、云南甜龙竹、油勒竹、黄竹和棉竹.防治应采取清理竹林杂草和翻土除卵,用生物杀虫剂适时防治,营造混交林等措施.发现并证实了黑翅竹蝗蝗蝻与其成虫共有的形态识别特征.
Ceracris fasciata mainly damages tropical clustered bamboo in Yunnan province. Biological characteristics of Ceracris fasciata were studied through laboratory rearing and field observation. It is found out that this locust species has one generation annually in Simao prefecture and the eggs are laid in soil to overwinter. The nymph of Ceracris fasciata develops five instars, living in groups and feeding on the grasses under the bamboo canopy. The emergence time for Ceracris fasciata is from late June to the mid of July. The adults begin to mate in early August and begin to oviposit in late August. The nymph sex ratio of female to male is 0.9: 1.0. The major host species damaged by this locust species have been ascertained to be Dendrocalamus hamiltonii,D. brandissi D. membranaceus,Bambusa lapidea B.intermidia. The proposed control measures include clearing off the weed in bamboo forest, killing the eggs by soil plough, applying biotic pesticide at proper time and planting mixed forest composed of bamboo and other tree species. The common morphological features to identify both the nymph and adults of Ceracris fasciata are found and verified.
出处
《西南林学院学报》
2003年第3期44-47,共4页
Journal of Southwest Forestry College
基金
云南省自然科学基金资助项目(2001C0041M).
关键词
黑翅竹蝗
生物学特性
生活史
危害习性
寄主竹类
蝗蝻
形态特征
防治
竹林害虫
Ceracris fasciata
biological characteristics
life history
damage habits
identification features for nymph
host bamboo
