梅州市柚园鳞翅目害虫的发生动态监测

Dynamic Monitoring of the Occurrence of Lepidoptera Pests in Pomelo Orchard in Meizhou City

为掌握梅州柚园鳞翅目害虫的发生动态和规律,了解柚园鳞翅目害虫群落结构多样性,于2021年5月至11月采用马来氏网诱集法开展了柚园鳞翅目害虫的系统调查。共采集到鳞翅目害虫28科,93种,其中优势科为夜蛾科(占比55.69%)、螟蛾科(13.11%)和裳蛾科(12.58%)。结果发现:鳞翅目害虫群落丰富度峰值出现在7月上旬;多样性指数峰值表现在10月份;群落均匀度指数最高值出现在5月上旬;群落优势度指数峰值出现在5月;月份害虫群落相似度最高的是8月和9月,最低的是5月和10月。该结果为柚园鳞翅目害虫的综合防治提供真实的数据支持和科学的理论指导。

To master the occurrence dynamics and regularity of Lepidopteron pests in the Pomelo orchard in Meizhou,and understand the diversity of Lepidopteron insect community structure in Pomelo orchard,Malay net trapping method is used to carry out a systematic investigation of Lepidopteron pests from May to November in 2021.A total of 28 families and 93 species of Lepidoptera are collected,among which the dominant families are Noctuidae(55.69%),Pyralidae(13.11%)and Erebidae(12.58%).The results show that the peak of Lepidopteran pest community richness appears in early July.The peak of diversity index is in October.The highest value of community evenness index appears in early May.The peak value of community dominance index appears in May.The highest similarity of pest communities is found in August and September,while the lowest in May and October.The results provided real data support and scientific theoretical guidance for the comprehensive control of Lepidoptera pests in pomelo orchard.