亚洲柑橘木虱雌成虫对砂糖橘幼嫩部位的 产卵选择性研究
Preferred oviposition sites of the female of Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae) on Citrus reticulate cv. Shatangju
李 皓;谢 鹏 ;梁关生; 韩群鑫
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DOI:10.7679/j.issn.2095-1353.2018.076
作者单位:仲恺农业工程学院,广州 510225;仲恺农业工程学院,广州 510225;仲恺农业工程学院,广州 510225;仲恺农业工程学院,广州 510225
中文关键词:亚洲柑橘木虱,砂糖橘,产卵
英文关键词:Diaphorina citri Kuwayama, Citrus reticulate cv. Shatangju, oviposition
中文摘要:
【目的】 明确亚洲柑橘木虱Diaphorina citri Kuwayama雌成虫的产卵过程及其对柑橘嫩芽产卵的偏好性。 【方法】 利用手机和微距镜头观察记录柑橘木虱雌成虫的产卵过程,并结合田间调查与室内试验明确了亚洲柑橘木虱雌成虫对砂糖橘嫩叶和不同发育状态嫩芽的偏好性。【结果】 亚洲柑橘木虱雌成虫产卵前,头部前倾,尾部上翘,触角不断抖动,一段时间后,雌成虫爬行到合适的位点开始产卵,或爬至其他部位,继续上述行为,直至找到合适的位置产卵。产卵时,触角静止不动,腹部收缩带动产卵器向腹部弯曲,肛上板与下生殖板张开,产卵器插入产卵位点产卵。产卵结束后,雌成虫迅速抽出产卵器,肛上板与下生殖板在抽离过程中缓慢闭合。田间调查发现,亚洲柑橘木虱雌成虫偏向于未展开和半展开的柑橘嫩芽上产卵。室内试验发现,当同时供给新叶和多种发育状态的砂糖橘嫩芽时,亚洲柑橘木虱产卵偏好于未展开和半展开的砂糖橘嫩芽,且不会选择在砂糖橘新叶上产卵。当仅供给一种发育状态的砂糖橘嫩芽或新叶时,亚洲柑橘木虱雌成虫在新叶和嫩芽上都能产卵,但在新叶上的产卵量明显比嫩芽上的产卵量小。【结论】 明确了亚洲柑橘木虱雌成虫的产卵过程。亚洲柑橘木虱雌成虫产卵具有明显趋嫩性,对于砂糖橘,雌成虫偏向于0-10 mm的嫩芽上产卵。
英文摘要:
[Objectives] To investigate the
oviposition process and the preferred oviposition sites of Diaphorina citri Kuwayama female adults on Citrus reticulate cv. Shatangju bud. [Methods] The oviposition process of female D. citri was observed and recorded using an apparatus that combined
a mobile phone with a macrolens, and preferred oviposition sites on Citrus reticulate cv. Shatangju buds and new
leaves were studied by field investigation and laboratory experiments. [Results] Females preparing
for oviposition remained in one place and quivered their antennae. After a
while, females either crawled to a suitable site to lay eggs or continued the
previous behavior at another site until they found a suitable oviposition site.
When females began to lay, their antennae were motionless and their abdomen
bent toward the ventral side of body, causing the gap between the epiproct and
subgenital plates to gradually open and the ovipositor to be inserted into the
oviposition site. After oviposition, females rapidly withdrew their ovipositor;
the gap between the epiproct and subgenital plates closed slowly during this
process. Females tended to lay eggs in unexpanded and partially-expanded citrus
buds in the field. In the laboratory, females also tended to lay eggs in
unexpanded and partially-expanded buds of Citrus reticulate cv.
Shatangju that were <
10.00 mm in length), and did not choose to lay eggs on new
leaves if buds were also available. If only buds or leaves were available,
females laid eggs on either new leaves or buds but the amount of eggs laid on
new leaves was significantly less than that laid on buds. [Conclusion] D. citri females prefer to lay eggs on tender buds of Citrus
reticulate cv. Shatangju that are from 0-10 mm long.