| 摘要: |
| 柑橘长卷蛾是红树林桐花树群落的重要害虫，在广东省局部区域的红树林保护区，已经对桐花树造成严重危害、对秋茄造成危害。柑橘长卷蛾在桐花树1年完成6代，以中龄幼虫越冬，第1～5代虫历时38～58d，越冬代虫历时130～137d。在桐花树群落，幼虫危害嫩芽、叶片、花序和果实；在桐花树+秋茄群落，幼虫危害秋茄的嫩芽和嫩叶片。在桐花树群落，5月上旬～5月下旬和9月上旬～10月上旬，受害嫩芽数量与受害叶片数量有两个高峰期，柑橘长卷蛾种群数量消长规律与受害嫩芽与受害叶片数量的变化规律成正相关，柑橘长卷蛾种群数量全年也对应有两个高峰期，但秋季害虫高峰期害虫的总数量只有春季暴发期害虫总数量的29%。柑橘长卷蛾数量与捕食性蜘蛛数量的比例为1：0.33，林间捕食性蜘蛛数量的比例偏低。 |
| 关键词: 红树林 桐花树 秋茄 柑橘长卷蛾 |
| DOI： |
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| Homona coffearia Study on Aegiceras corniculatum Community in Guang Dong |
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Xu Jiaxiong
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| Abstract: |
| Homona coffearia is a important insect pest on Aegiceras corniculatum community of mangrove, at the mangrove of part field in Guang Dong, the insect pest already work graveness harm to Aegiceras corniculatum, it already work harm to Kandelia obovata. Homona coffearia at Aegiceras corniculatum tree completed 6 generations of a year, use the middle-larva live through the winter, the insect pest period of complete generation need 38 days ～ 58 days from firstly generation to fifthly generation, the insect pest period of complete generation need 130 days ～ 137 days to live through the winter. On Aegiceras corniculatum community, the larva harms twig or leaf or anthotaxy or fruit, On Aegiceras corniculatum+ Kandelia obovata community, the larva harms twig or tender leaf of Kandelia obovata. On Aegiceras corniculatum community, at 5 month of the first ten days of a month ~ 5 month of the last ten days of a month and 9 month of the first ten days of a month ~ 10 month of the first ten days of a month, the amounts of harmed twig and harmed leaf have two high period of time, the quantity of Homona coffearia and the harm twig quantity with leaf a quantity positive related on Aegiceras corniculatum community, the population quantity of Homona coffearia also corresponding have two high period of time, but autumn quantity of insect pest high period of time only contain 29% of the spring quantity of insect pest high period of time. Homona coffearia amounts and the spider amounts proportion 1: 0.33, the spider amounts proportion of forest is small. |
| Key words: mangrove,Aegiceras corniculatum, Kandelia obovata,, Homona coffearia |
