A new Report of Parasitic Nematodes (Thelastomatidae) in Egyptian Cockroaches, Polyphaga aegyptiaca (Dictyoptera: Polyphagidae) in Sharkia Governorate, Egypt (original) (raw)
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The mechanical transmission of human parasites by cockroaches in Ismailia Governorate, Egypt
Egyptian Academic Journal of Biological Sciences, E. Medical Entomology & Parasitology
Journal of Medical Entomology and Parasitology is one of the series issued quarterly by the Egyptian Academic Journal of Biological Sciences. It is an important specialist journal covering the latest advances in that subject. It publishes original research and review papers on all aspects of basic and applied medical entomology, parasitology and host-parasite relationships, including the latest discoveries in parasite biochemistry, molecular biology, genetics, ecology and epidemiology in the content of the biological, medical entomology and veterinary sciences. In addition to that, the journal promotes research on the impact of living organisms on their environment with emphasis on subjects such a resource, depletion, pollution, biodiversity, ecosystem…..etc. www.eajbs.eg.net Provided for non-commercial research and education use. Not for reproduction, distribution or commercial use.
Examination of the snake Platyceps ventromaculatus collected in Baghdad city for nematodes revealed the presence of 16 (3 males and 13 females) of the nematode Physalopteroides venancioi in the intestine of one specimen of P. ventromaculatus (25%), and one larva of Physalopteroides sp. isolated from gastric tissues of one P. ventromaculatus. Characters and measurements of P. venancioi were discussed and compared with those of other pertinent literatures. The present study provides information on infection rate, description and measurements of males, females and larva of P. venancioi. Reporting P. venancioi in the present study represents a new addition to Iraqi fauna as well as P. ventromaculatus as new host for it in Iraq.
Türkiye Biyolojik Mücadele Dergisi, 2020
Two Turkish entomopathogenic nematodes isolates, Steinernema feltiae-KV06 (Filipjev) (Rhabditida: Steinernematidae) and Heterorhabditis bacteriophora-EO7 (Rhabditida: Heterorhabtidae), were tested against the cockroach, Blatta lateralis Walker (Blattodea: Blattidae) to determine their potential for its control. The isolates were obtained from Kelebekler Vadisi and Eğriova Nature Parks in Ankara Province, Turkey. These isolates were applied at concentrations of 100, 250, 500 and 1000 IJ/cm2 to B. lateralis nymphs in 9cm diameter Petri dishes. The mortalities were recorded at 2, 4, 6, 8, 10, 12 and 14 days after application. At 1000 IJs/cm2, S. feltiae-KV06 and H. bacteriophora-EO7 caused the highest mortality (100.0±0.0%) with an LT50 of 2.3 and 2.6 days, respectively, and an LT90 of 6.6 and 7.9 days, respectively. The lowest mortality rate caused by both species was at 100IJs/cm2 after 2 days of exposure (S. feltiae-KV06: 0.6±1.4; H. bacteriophora-EO7: 0.0±0.0). There was no signifi...
Türk Tarım ve Doğa Bilimleri Dergisi, 2020
Chemical insecticides used against cockroaches, which are an important urban pest and considered public health, are harmful to human health and cause insects to gain resistance. The entomopathogenic nematode (EPN), Heterorhabditis bacteriophora HBH, were used in place of chemical insecticides within the scope of biological control against the Turkestan cockroaches Blatta lateralis in this study. The hydrophilic fabric traps were set to provide the moist environment needed by the EPNs on aboveground. The fabrics inoculated with the nematodes at 50, 100 and 150 IJs/cm 2 were used throughout the 37-day experiment. The first treatment was performed by adding 10 adult cockroaches immediately after the establishment of the traps. In the same way, the second treatment was applied after 15 days and the third treatment after 30 days. The mortality rates of cockroaches after 4 and 7 days of exposure to EPNs were determined for all treatments. Although Turkestan cockroaches were exposed to HBH 30 days after the setting of the traps, infection occurred. As a result of this study, the above-ground persistence and infectivity of HBH could be achieved more than 4 weeks by using hydrophilic fabric. In addition, the mortality rates of the Turkestan cockroaches were found to increase depending on exposure time and the nematode dosage.
Ecological Study of Insect Vectors Mechanically Transmit Parasites in Ismailia Governorate, Egypt
Egyptian Academic Journal of Biological Sciences. A, Entomology
Seven different sites were chosen in Ismailia Governorate representing areas of health and human activities that could be affected with the presence of insect vectors that assess their potential role in mechanical transmission of helminths and protozoa parasites of man. Four groups of insects were collected: Flies, cockroaches, beetles and ants. A total number of 8499 individual insects were collected during the period of study. The summer season was the most abundant season as the total insects count was 3679, autumn and spring came next to summer with 2787 and 1643 trapped insects, respectively. The lowest abundant season was winter in which only 390 insects were collected. The most important species with the highest abundance was Chrysomia putoria followed by Musca domestica with 1717 and 1707 individuals, respectively. Insects species diversity varied slightly among the months of the study period while it is noticed that insects species diversity varied greatly among the months of the study period.
Genetics & Biodiversity Journal
Cockroaches are vectors and harborages of several microorganisms such as bacteria, viruses, protozoa and helminths which most of them are known to be causative agents of gastro-intestinal intoxications. Due to the lack of information’s in Algeria about the intestinal parasites intoxication and their transmission by cockroaches, this work aims to examine the intestinal parasites present on the bodies of twenty-eight cockroaches collected from different sites (Fast-Food, bakery, Super market, kitchen) at Ain Témouchent city (Algeria). However, no cockroach was found in the university restaurants of the girls and boy’s residences to be collected. The cockroaches identified belong to the four genus namely American, German, Striped and Nymph, with prevailing of the male sex. I Identification results of intestinal parasites and their different stages showed that the quality of the parasite does not depend on the species of cockroaches and/or the collection site. In fact, all cockroaches l...
Technium, 2023
Household cockroaches constitute a significant public health threat due to their capacity of transmitting medically-important parasites and other pathogens. The role of Iraqi household cockroaches as potential vectors of medically-important parasites was evaluated in the present study. Fifty cockroaches (Periplaneta americana) were collected from different dwelling places of Baquba City, Diyala Province during the period from October to December 2022. The contents of their guts and external body surfaces were examined for the presence of medically-important parasites. The overall prevalence rate of parasitic infestation on the external body surfaces was 60.0%, while the overall prevalence rate of parasitic infection in the guts was 56.0%. Based on capture sites, cockroaches trapped in the toilets had more parasites than those caught from kitchens and rooms. Four species of medically important parasites were isolated from the external body surfaces of the cockroaches; three species were identified as protozoa and only one species was helminth. The protozoan parasites were identified as Blastocystis spp. (36.0%), Giardia spp. (14.0%) and Cryptosporidium spp. (4.0%). In addition, five species of medically important parasites were isolated from the gut contents; four species were identified as protozoa and only one species was helminth. The protozoan parasites were identified as Blastocystis spp. (24.0%), Giardia spp. (10.0%), Cryptosporidium spp. (8.0%), and Entamoeba histolytica/ E. dispar (2.0%). Enterobius vermicularis was the only helminth parasite isolated from both gut contents (2.0%) and external body surfaces (2.0%). In conclusion, the results showed that cockroaches were found to harbor intestinal parasites of public health importance and awareness on the potential role of these insects in the transmission of human intestinal parasites needs to be established.