籼稻异型丝虫在实验室条件下控制龙舌兰象鼻虫的潜力

IF 0.3 4区 农林科学 Q4 ENTOMOLOGY Southwestern Entomologist Pub Date : 2023-12-14 DOI:10.3958/059.048.0414
Francisco Javier Sotelo-Rivera, Lino Mayorga-Reyes, R. Alatorre-Rosas, Víctor López-Martínez, Rubén Castro-Franco
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引用次数: 0

摘要

摘要。龙舌兰象鼻虫(Scyphophorus acupunctatus Gyllenhal)的生物防治包括使用异型线虫属的昆虫病原线虫,这些线虫具有治理隐蔽性害虫的潜力。在龙舌兰象鼻虫成虫群中,对两种本地分离的籼稻异型线虫 Poinar、Karunakar 和 David(A14 和 X1)以及商业分离的细菌异型线虫的毒性进行了评估。甘蔗象鼻虫(Scyphophorus incurrens)幼虫和蛹的分离物采集于墨西哥莫雷洛斯州。通过实验室生物测定确定了每种分离物的毒性,计算了消灭 50%龙舌兰象鼻虫成虫所需的致死浓度(LC50)和致死时间(LT50)。龙舌兰象鼻虫成虫在墨西哥哈利斯科州采集。所评估的三种分离物的半数致死时间从 1 183 到 1 913 个感染幼虫不等,所评估的分离物之间没有显著差异;但 A14 所需的半数致死时间较短。在消除 50%试验种群的半数致死浓度方面,该分离物与 X1 存在统计学差异。根据研究结果,本地分离物具有作为生物防治药剂防治穴囊虫的潜力。摘要。对龙舌兰刺吸虫(Scyphophorus acupunctatus Gyllenhal)的生物防治包括使用异型线虫(Heterorhabditis)类昆虫,这些线虫具有控制虫害的潜力。我们评估了两种籼稻异型丝虫(A14 和 X1)和商业异型丝虫对龙舌兰成虫的毒力。这些幼虫和蛹是在莫雷洛斯州发现的。在实验室生物测定中确定了这些幼虫的毒性,以计算出能够消灭 50%龙舌兰幼虫的致死浓度(CL50)和致死时间(TL50)。S. acupunctatus 的成虫在墨西哥哈利斯科州采集。三只成虫的 CL50 在 1 183 到 1 913 JI 之间变化,没有差异。但 A14 的 CL50 值较低。El aislado A14 fue diferente a X1 en TL50 para eliminar 50% de la población.Los resultados de este estudio muestran que los aislados nativos tienen el potencial como control biológico de S. acupunctatus.
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Potential of Heterorhabditis indica to Control Agave Weevil, Scyphophorus acupunctatus, at Laboratory Conditions
Abstract. Biological control of agave weevil, Scyphophorus acupunctatus Gyllenhal, includes use of entomopathogenic nematodes of the genus Heterorhabditis, which have potential for managing pests with cryptic habits. Virulence of two native isolates of Heterorhabditis indica Poinar, Karunakar & David (A14 and X1) and commercial isolate Heterorhabditis bacteriophora were evaluated on a population of adult agave weevils. Isolates of larvae and pupae of sugarcane weevil, Scyphophorus incurrens, were collected in the State of Morelos, Mexico. Virulence of each isolate was determined by laboratory bioassays to calculate lethal concentration (LC50) and lethal time 50 (LT50) required to eliminate 50% of a population of adult agave weevils. The adult agave weevils were collected at Jalisco, Mexico. For the three isolates evaluated, LC50 ranged from 1,183 to 1,913 infective juveniles, with no significant differences between the isolates evaluated; however, A14 required a lesser LC50. The isolate was statistically different from X1 in terms of LT50 to eliminate 50% of the test population. Based on results of the study, native isolates had potential as biological control agents against S. acupunctatus. Resumen. El control biológico del picudo del agave, Scyphophorus acupunctatus Gyllenhal, incluye el uso de nemátodos entomopatogénicos del género Heterorhabditis, los cuales tienen el potencial de controlar plagas de hábitos crípticos. Se evaluó la virulencia de dos aislados nativos de Heterorhabditis indica (A14 and X1), y el aislado comercial Heterorhabditis bacteriophora con adultos del picudo del agave. Aislados de larvas y pupas del picudo de la caña de azúcar, se obtuvieron en Morelos. La virulencia de los aislados se determinó en bioensayos de laboratorio para calcular la concentración letal (CL50) y el tiempo letal 50 (TL50) que pueden eliminar 50% de la población del picudo del agave. Adultos de S. acupunctatus se colectaron en Jalisco, México. Con los tres aislados la CL50 varió entre 1,183 to 1,913 JI adulto, sin diferencias entre ellos. Sin embargo, A14 requirió menor CL50. El aislado A14 fue diferente a X1 en TL50 para eliminar 50% de la población. Los resultados de este estudio muestran que los aislados nativos tienen el potencial como control biológico de S. acupunctatus.
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来源期刊
Southwestern Entomologist
Southwestern Entomologist 生物-昆虫学
CiteScore
0.60
自引率
25.00%
发文量
95
审稿时长
6-12 weeks
期刊介绍: Manuscripts submitted for consideration for publication in the Southwestern Entomologist should report results of entomological research in the southwestern United States or Mexico or should report results of studies on entomological species, relevant to this region, which may be done elsewhere, provided such results are geographically applicable. Manuscripts that report results of routine laboratory or field experiments for which the primary purpose is gathering baseline data or those that report results of a continuous evaluation program such as preliminary pesticide evaluation experiments, species lists with no supporting biological data, or preliminary plant resistance evaluations are not acceptable. However, reports of experiments with insecticides, acaricides, and microbials are acceptable if they are comprehensive and include data related to economics, resistance, toxicology, or other broad subject areas. Bibliographies will not be published in Southwestern Entomologist.
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