评价不同环境因素对粉棉铃虫孳生地点的影响

M. Nasir
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引用次数: 0

摘要

棉蚜是棉花棉铃虫中最具潜在危害的害虫。采用信息素诱捕器对不同窝点附近的粉棉铃虫(PBW)蛾类种群进行了研究。粉棉铃虫幼虫在棉籽或土壤中越冬。从这些来源飞蛾出现,影响下一季的作物。在4个有可能捕获蛾类的地点设置带有Gossyplure ((Z, Z)和(Z, E) 7,11十六烯乙酸酯)的性信息素诱捕器。每周记录性信息素诱捕器捕获PBW蛾的数据,每天记录影响PBW蛾捕获的气象因子。用简单相关法计算了气象因子与飞蛾捕获量的关系。结果表明,棉棒堆附近设置的捕蝇器平均捕蛾量最高,为85.61,棉田次之,为24.47。棉籽库诱捕器平均捕获月蛾数最低,为1.22个。棉田诱蚊器平均捕获蛾只最多,9月为3.87只,12月无捕获蛾只。棉棒堆附近设置的捕蛾器与平均最高、最低气温呈显著正相关,与相对湿度和降雨量呈不显著相关。棉棒堆是棉铃虫侵染连作的主要孳生场所。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
ESTIMATING THE POTENTIAL OF VARIOUS HARBORING SITES OF PINK BOLLWORM (PECTINOPHORA GOSSYPIELLA) IN RELATION TO ENVIRONMENTAL FACTORS
Pectinophora gossypiella is the most potential pest among all bollworms of cotton crop. Studies were conducted to find the Pink Bollworm (PBW) moths population in pheromone traps installed near different harboring sites. Pink Bollworm larvae overwinter in cotton seeds or in soil. From these sources moth emerges, that affect the next season crop. The sex pheromone traps charged with Gossyplure [(Z, Z) and (Z, E) 7, 11 hexadecadienyl acetate] were installed on four potential sites of PBW to catch the moths. Data regarding PBW moths catch in sex pheromone traps were recorded on weekly basis while metrological factors effecting PBW moths catch were recorded on daily basis. Relationship between the moths catch and weather factors were computed by simple correlation. The results concluded that maximum mean moths catch were recorded in those traps that were installed near cotton sticks heaps i. e 85.61 followed by cotton field 24.47. The lowest average number of moths catch was captured in traps of cotton seed store 1.22. The highest moths mean population 3.87 was trapped in the month of September from cotton field traps, however no moth was recorded during the month of December among all the sites.  The moths catch in traps installed near cotton sticks heaps site has positive correlation with mean maximum and minimum temperature while has non-significant correlation with relative humidity and rainfall. Cotton sticks heaps are the major harboring sites of PBW infestation to the successive cotton crop.
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