三亚市槟榔黄化病危害情况初步调查

为了摸清槟榔黄化病在三亚市的危害情况，对三亚市二区六镇（河东区、河西区、吉阳镇、育才镇、海棠湾镇、天涯镇、崖城镇、凤凰镇）的槟榔种植区进行下乡调查。结果表明三亚市各区镇槟榔种植水平存在差异，二区槟榔种植面积由于城镇化己呈减少趋势；槟榔黄化病在六镇二区零星发病，总体危害较轻，除育才镇一个槟榔园发病在50%以上之外，其他地区基本发病率均在3%以下；其他病虫害的发生率与种植管理水平相关。并对外界报道发病严重而实际调查轻的原因进行了分析，提出应对槟榔黄化病的相关策略。

Primary investigate of yellowing leaf disease in Sanya city areca plantation

To clear that the occurrence of yellowing lethal disease in Sanya city, investigate the areca nut plantation of two regions and six towns in Sanya city (Hedong Region, HexiRegion, Jiyang Town, Yucai Town, Haitangwan Town, Tianya Town, Yacheng Town, Fenghuang Town). The results shows that the plant levels are difference in each town, the plantation area of two regions has a decreasing tendency as the urbanization. The yellowing lethal disease has a very low rate in two regions and six towns, light in general., except on plantation in Yucai town the disease rate over 50%, the other plantations the disease rate are all lower than 3%. The other diseases and pests occurrence has a negative correlation with control level. Analysis the reasons of the reported serious and reality is light, proposed few strategies to respond the yellowing lethal disease.