荔枝挂果末期荔枝蒂蛀虫防治指标分析

doi:10.12302/j.issn.1000-2006.202006030

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南京林业大学学报（自然科学版） ›› 2021, Vol. 45 ›› Issue (4): 190-194.doi: 10.12302/j.issn.1000-2006.202006030

荔枝挂果末期荔枝蒂蛀虫防治指标分析

周成辉(), 朱麟^*()

海南师范大学生命科学学院,海南海口 571158

收稿日期:2020-06-23 接受日期:2021-01-20 出版日期:2021-07-30 发布日期:2021-07-30
通讯作者: 朱麟
基金资助:
国家重点研发计划(2017YFD0202100)

Analyses on the control index of Conopomorpha sinensis at the end of Litchi chinensis fruiting

ZHOU Chenghui(), ZHU Lin^*()

College of Life Sciences, Hainan Normal University, Haikou 571158, China

Received:2020-06-23 Accepted:2021-01-20 Online:2021-07-30 Published:2021-07-30
Contact: ZHU Lin

摘要/Abstract

摘要：

【目的】荔枝是华南地区著名的热带水果之一,荔枝蒂蛀虫是危害荔枝的主要害虫,每年都需要投入大量的防治费用。探讨荔枝蒂蛀虫成虫的防治指标和经济允许损失水平,为荔枝蒂蛀虫的科学防治提供指导。【方法】于海口市三门坡镇一荔枝种植园内,采用整株套罩和人工接虫的方法研究荔枝蒂蛀虫成虫的接虫数量与荔枝蛀果率之间的关系,设置无接虫为空白对照组,分析荔枝蒂蛀虫的防治指标与经济允许损失水平。【结果】不同处理组之间蛀果率存在显著差异,随着接虫数增加,荔枝蛀果率也随之升高,最高蛀果率为55.75%。荔枝蒂蛀虫接虫数与蛀果率之间的回归方程为:y=13.442x-1.484,R²=0.983 5。【结论】荔枝蛀果率与荔枝蒂蛀虫的数量呈正相关关系,防治荔枝蒂蛀虫的平均经济允许损失水平为2.27%/株,平均防治指标为0.28对/株。

关键词: 荔枝, 荔枝蒂蛀虫, 经济损失允许水平, 防治指标

Abstract:

【Objective】Litchi chinensis is one of the most famous tropical fruits in southern China, with Conopomorpha sinensis as its most devastating insect pest. Great efforts have to be made to control this pest each year. Therefore, studying the control index and economic injury level could scientifically improve the control strategies for Litchi chinensis (litchi)fruit pests.【Method】In a litchi plantation in Sanmenpo Town, Haikou City, Hainan Province, the relationship between the number of adults and the rate of fruit decay was studied using the method of the whole plant coverage and artificial adult inoculation; the control group was set with no adult inoculation. The economic injury level (EIL) and control index of litchi fruit pests were calculated and analyzed.【Result】The results showed that there were significant differences in the rate of litchi fruit decay between treatment groups and the rate of litchi fruit decay increased with the augmented adult inoculation. The highest average rate of litchi fruit decay was 55.75%. The regression equation between the number of adults inoculated and the rate of fruit decay was y=13.442x-1.484, R²=0.983 5.【Conclusion】There was a positive correlation between the rate of fruit decay of litchi and the number of litchi fruit pests. Meanwhile, the economic injury level (EIL) was 2.27% per plant and the control index was 0.28 pairs per plant.

Key words: Litchi chinensis, Conopomorpha sinensis, economic injury level(EIL), control index

中图分类号:

Q969.93
S763

周成辉,朱麟. 荔枝挂果末期荔枝蒂蛀虫防治指标分析[J]. 南京林业大学学报（自然科学版）, 2021, 45(4): 190-194.

ZHOU Chenghui, ZHU Lin. Analyses on the control index of Conopomorpha sinensis at the end of Litchi chinensis fruiting[J].Journal of Nanjing Forestry University (Natural Science Edition), 2021, 45(4): 190-194.DOI: 10.12302/j.issn.1000-2006.202006030.

图/表 3

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接虫数/对 inoculated adult pairs	蛀果率/% the rate of decaying fruit
0	0 A
1	12.45±2.87 B
2	23.43±5.33 C
3	35.37±6.72 D
4	55.75±7.75 E

荔枝挂果末期荔枝蒂蛀虫防治指标分析

Analyses on the control index of Conopomorpha sinensis at the end of Litchi chinensis fruiting

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