埃及沿海夜蛾(鳞翅目:夜蛾科)田间种群抗药性监测及生化影响

E. Fouad, Fatma S. Ahmed, M. Moustafa
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引用次数: 3

摘要

棉花叶虫(Spodoptera littoralis, Boisd.)是影响埃及许多大田作物和蔬菜的主要害虫。为此,本研究调查了滨海夜蛾实验室品系2龄幼虫对8种杀虫剂的敏感性,并监测了2个田间种群的抗药性水平。这两个种群来自埃及的两个省,即El-Monufia (MS)和El-Fayoum (FS)。抗性监测结果表明,El-Fayoum田间种群对氯虫腈、苯甲酸emamectin (EMB)、spinotram和spinosad具有高度抗性。然而,El-Monufia田间种群仅对氯虫腈和棘虫素表现出高抗性。相对毒力分析结果表明,实验室菌株对EMB (LC50= 0.001 ppm)高度敏感,其次是氯硝唑(LC50= 0.006 ppm)、氯虫腈(LC50= 0.008 ppm)、spinosad (LC50= 0.008 ppm)和茚虫威(LC50= 0.021 ppm),而对氯虫腈、氟虫腈和高效氯氰菊酯的毒性较低。此外,解毒酶的生化测定表明,羧酯酶(α和β酯酶)和乙酰胆碱酯酶活性在FS群体中显著升高。因此,谷胱甘肽s -转移酶(GST)在两个人群中均有显著升高。
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Monitoring and biochemical impact of insecticides resistance on field populations of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) in Egypt
Cotton leafworm, Spodoptera littoralis (Boisd.) is a key pest affecting many field crops and vegetables in Egypt. Therefore, in the current study, the susceptibility of the 2nd instar larvae of S. littoralis laboratory strain to eight insecticides was investigated and the insecticide resistance levels of two field populations were monitored. The two populations were collected from two governorates in Egypt, namely El-Monufia (MS) and El-Fayoum (FS). Resistance monitoring showed that the field population from El-Fayoum was highly resistant to chlorantraniliprole, emamectin benzoate (EMB), spinotram, and spinosad. However, the El-Monufia field population only exhibited high resistance to chlorantraniliprole and spinosad. The relative toxicity showed that the laboratory strain is highly sensitive to EMB (LC50= 0.001 ppm) followed by spinotram (LC50= 0.006 ppm), chlorantraniliprole (LC50= 0.008 ppm), spinosad (LC50= 0.008 ppm), and indoxacarb (LC50= 0.021 ppm), while chlorfenapyr, fipronil, and alpha-cypermethrin exhibited low toxicity to the laboratory strain of S. littoralis. Moreover, the biochemical determinations of detoxification enzymes revealed that carboxylesterase (α, and β -esterase), and AChE activity were significantly increased in the FS population. Thus, Glutathione S-Transferase (GST) showed significant increase in the two populations.
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来源期刊
Polish Journal of Entomology
Polish Journal of Entomology Agricultural and Biological Sciences-Insect Science
CiteScore
0.90
自引率
0.00%
发文量
11
期刊介绍: The Polish Journal of Entomology was founded in 1922 as a periodical of the Polish Entomological Society under the title Polskie Pismo Entomologiczne (subtitle Bulletin Entomologique de Pologne). The journal publishes original research papers and reviews from any entomological discipline. The Polish Journal of Entomology is sponsored by the Polish Entomological Society and the Ministry of Science and Higher Education. It deals with all aspects of entomology and has no geographical limits. Four issues of the journal are published annually. It is covered by the Zoological Record, Entomological Abstracts, Biological Abstracts. Each article has its own DOI
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