The larva, protonymph and deutonymph of Hemipteroseius indicus (Krantz & Khot, 1962) are described from specimens collected on the red cotton bug, Dysdercus sp. (Hemiptera: Pyrrhocoridae) in India and Democratic Republic of Congo. These are compared with the characteristics of the adult female. In addition, the complete chaetotaxy of the dorsal and ventral idiosoma and some details of the gnathosoma and legs are given. These are compared with the published details of Hemipteroseius adleri, H. womersleyi, Nabiseius duplicisetus, Noctuiseius treati, and Prasadiseius cocytes representing four genera and six species of Otopheidomenidae . Five tables and many colored figures with details, including a pharate female and a pharate male, are included.
{"title":"Description of motile immature stages of Hemipteroseius indicus (Krantz & Khot) (Acari: Otopheidomenidae)","authors":"V. Prasad","doi":"10.22073/pja.v7i1.32053","DOIUrl":"https://doi.org/10.22073/pja.v7i1.32053","url":null,"abstract":"The larva, protonymph and deutonymph of Hemipteroseius indicus (Krantz & Khot, 1962) are described from specimens collected on the red cotton bug, Dysdercus sp. (Hemiptera: Pyrrhocoridae) in India and Democratic Republic of Congo. These are compared with the characteristics of the adult female. In addition, the complete chaetotaxy of the dorsal and ventral idiosoma and some details of the gnathosoma and legs are given. These are compared with the published details of Hemipteroseius adleri, H. womersleyi, Nabiseius duplicisetus, Noctuiseius treati, and Prasadiseius cocytes representing four genera and six species of Otopheidomenidae . Five tables and many colored figures with details, including a pharate female and a pharate male, are included.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/pja.v7i1.32053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48870934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Khalili, M. Rezaei, B. Akhtardanesh, Zeinab Abiri, Shima Shahheidaripour
Q fever, as one of the tick-borne zoonotic diseases, is caused by Coxiella burnetii . Ticks may play an important role in C. burnetii transmission to animals and humans. By using nested Trans-PCR, we investigated the presence of C. burnetii in ticks collected from dogs in Kerman, southeast of Iran. A total of 375 ticks were randomly collected from 100 dogs. Eight pools were finally formed. The pools of tick samples were assessed for the presence of C. burnetii . Genomic DNA extraction was done and samples were evaluated by nested Trans-PCR. All tick specimens were identified as Rhipicephalus sanguineus regarding the taxonomical characteristics. Coxiella burnetii was detected in 1 out of 8 (12.5%) pool samples. One positive sample was subjected to sequence analysis, which successfully confirmed the accuracy of the PCR assay. Our data show that ticks infesting dogs can be infected by C. burnetii , providing zoonotic importance of these populations. Efforts should be focused on understanding the role and epidemiologic importance of dogs and their ticks, especially for human Q fever, which can be a life-threatening disease.
{"title":"Detection of Coxiella burnetii (Gammaproteobacteria: Coxiellaceae) in ticks collected from infested dogs in Kerman, Southeast of Iran","authors":"M. Khalili, M. Rezaei, B. Akhtardanesh, Zeinab Abiri, Shima Shahheidaripour","doi":"10.22073/PJA.V7I1.30699","DOIUrl":"https://doi.org/10.22073/PJA.V7I1.30699","url":null,"abstract":"Q fever, as one of the tick-borne zoonotic diseases, is caused by Coxiella burnetii . Ticks may play an important role in C. burnetii transmission to animals and humans. By using nested Trans-PCR, we investigated the presence of C. burnetii in ticks collected from dogs in Kerman, southeast of Iran. A total of 375 ticks were randomly collected from 100 dogs. Eight pools were finally formed. The pools of tick samples were assessed for the presence of C. burnetii . Genomic DNA extraction was done and samples were evaluated by nested Trans-PCR. All tick specimens were identified as Rhipicephalus sanguineus regarding the taxonomical characteristics. Coxiella burnetii was detected in 1 out of 8 (12.5%) pool samples. One positive sample was subjected to sequence analysis, which successfully confirmed the accuracy of the PCR assay. Our data show that ticks infesting dogs can be infected by C. burnetii , providing zoonotic importance of these populations. Efforts should be focused on understanding the role and epidemiologic importance of dogs and their ticks, especially for human Q fever, which can be a life-threatening disease.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V7I1.30699","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47682191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Hakimitabar, A. Saboori, Hossein Mokhtarisaaveh
Lasioerythraeus saboorii Khanjani, Raisi & Izadi was described and illustrated based on larvae ectoparasitic on Aphis punicae (Passerini) (Hemiptera: Aphididae) from Boshrouyeh, Ferdows city, South Khorasan Province, Iran. In this paper, additional specimens were collected on unknown species of Chloropidae (Diptera) as host from Mahvelat City, Khorasan Razavi Province and additional metric data are provided. A revised key to world larval species of Lasioerythraeus is presented. Chloropidae is reported as a new host for the genus.
{"title":"New morphological data and new host record of Lasioerythraeus saboorii (Trombidiformes: Erythraeidae) from Iran","authors":"M. Hakimitabar, A. Saboori, Hossein Mokhtarisaaveh","doi":"10.22073/PJA.V7I1.34679","DOIUrl":"https://doi.org/10.22073/PJA.V7I1.34679","url":null,"abstract":"Lasioerythraeus saboorii Khanjani, Raisi & Izadi was described and illustrated based on larvae ectoparasitic on Aphis punicae (Passerini) (Hemiptera: Aphididae) from Boshrouyeh, Ferdows city, South Khorasan Province, Iran. In this paper, additional specimens were collected on unknown species of Chloropidae (Diptera) as host from Mahvelat City, Khorasan Razavi Province and additional metric data are provided. A revised key to world larval species of Lasioerythraeus is presented. Chloropidae is reported as a new host for the genus.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V7I1.34679","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48560000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Poultry red mite, Dermanyssus gallinae De Geer (Mesostigmata: Dermanyssidae), is an important pest of birds in avicultures and it is an economic, hygienic and epidemiologic problem in the poultry industry. Uses of botanical pesticides are good and safe alternatives instead of chemical compounds. In the present study acaricidal and repellency activities of Conocarpus erectus , Portulaca oleracea and Pistacia atlantica extracts were evaluated against D. gallinae by calculation LC 50 value and repellency index of each herbal extract in laboratory conditions and were compared with abamectin (a conventional chemical acaricide). However, all herbal extracts had less toxicity against the mite than abamectin. Aquatic and ethanolic extracts of C. erectus exhibited repellent for D. gallinae. The repellency effect was not observed in P. oleracea and P. atlantica extracts. Therefore, based on this experiment, it could be concluded that the aquatic and ethanolic extracts of C. erectus can be used as a safe botanical acaricide and repellent compound for control of D. gallinae in avicultures.
家禽红螨(Dermanyssus gallinae De Geer)是家禽养殖中重要的鸟类害虫，是家禽业的一个经济、卫生和流行病学问题。使用植物性杀虫剂是一种良好而安全的化合物替代品。在实验室条件下，通过计算各提取物的LC 50值和驱避指数，评价了直立木、马齿苋和阿斯特拉木提取物对鸡盲蝽的杀螨和驱避活性，并与常规化学杀螨剂阿维菌素进行比较。然而，所有草药提取物对螨虫的毒性都低于阿维菌素。直立木的水提取物和乙醇提取物对鸡直纹夜蛾均有驱避作用。马齿苋和大西洋草提取物均无驱避作用。综上所述，直立木水提物和醇提物可作为一种安全的植物性杀螨剂和驱避剂，防治鸡鸡粉虱。
{"title":"Acaricidal and repellent properties of some plant extracts against poultry red mite, Dermanyssus gallinae (Mesostigmata: Dermanyssidae)","authors":"A. Rajabpour, A. Mashhadi, M. Ghorbani","doi":"10.22073/PJA.V7I1.34098","DOIUrl":"https://doi.org/10.22073/PJA.V7I1.34098","url":null,"abstract":"Poultry red mite, Dermanyssus gallinae De Geer (Mesostigmata: Dermanyssidae), is an important pest of birds in avicultures and it is an economic, hygienic and epidemiologic problem in the poultry industry. Uses of botanical pesticides are good and safe alternatives instead of chemical compounds. In the present study acaricidal and repellency activities of Conocarpus erectus , Portulaca oleracea and Pistacia atlantica extracts were evaluated against D. gallinae by calculation LC 50 value and repellency index of each herbal extract in laboratory conditions and were compared with abamectin (a conventional chemical acaricide). However, all herbal extracts had less toxicity against the mite than abamectin. Aquatic and ethanolic extracts of C. erectus exhibited repellent for D. gallinae. The repellency effect was not observed in P. oleracea and P. atlantica extracts. Therefore, based on this experiment, it could be concluded that the aquatic and ethanolic extracts of C. erectus can be used as a safe botanical acaricide and repellent compound for control of D. gallinae in avicultures.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V7I1.34098","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45462357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Recently incidence of Tetranychus urticae is a widespread issue in grape orchards in India. The possibility of a pesticide induced resurgence of mites was explored by applying field recommended doses of commonly used pesticides. The field trial revealed no resurgence with respect to dicofol, abamectin, spiromecifen, dichlorovos + fish oil resin soap and dinocap usage consecutively. Sulphur induced heavy resurgence (16.55%) with resurgence ratio of 1.05, followed by thiamethoxam (8.89%), acetamiprid (6.97%), imidacloprid (6.15%) and buprofezin (5.46%) with resurgence ratios of 0.81, 0.89, 0.87, and 0.88 respectively.
{"title":"A note on pesticide induced resurgence of two spotted spider mite, Tetranychus urticae (Acari: Tetranychidae) on grape","authors":"Chandragouda Patil, S. Udikeri, S. Karabhantanal","doi":"10.22073/PJA.V7I1.27987","DOIUrl":"https://doi.org/10.22073/PJA.V7I1.27987","url":null,"abstract":"Recently incidence of Tetranychus urticae is a widespread issue in grape orchards in India. The possibility of a pesticide induced resurgence of mites was explored by applying field recommended doses of commonly used pesticides. The field trial revealed no resurgence with respect to dicofol, abamectin, spiromecifen, dichlorovos + fish oil resin soap and dinocap usage consecutively. Sulphur induced heavy resurgence (16.55%) with resurgence ratio of 1.05, followed by thiamethoxam (8.89%), acetamiprid (6.97%), imidacloprid (6.15%) and buprofezin (5.46%) with resurgence ratios of 0.81, 0.89, 0.87, and 0.88 respectively.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V7I1.27987","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44986905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-11-01Epub Date: 2017-01-28DOI: 10.1007/s11845-017-1559-2
K M Joyce, N M McInerney, R P Piggott, F Martin, D M Jones, A J Hussey, M J Kerin, J L Kelly, P J Regan
Background: Sentinel lymph node biopsy (SLNB) is a standard method for determining the pathologic status of the regional lymph nodes.
Aims: The aim of our study was to determine the incidence and clinicopathologic factors predictive of SLN positivity, and to evaluate the prognostic importance of SLNB in patients with cutaneous melanoma.
Methods: We performed a retrospective analysis of a prospectively maintained database of all patients who underwent SLNB for primary melanoma at our institution from 2005 to 2012. Statistical analysis was performed using χ 2 and Fischer exact test.
Results: In total, 318 patients underwent SLNB, of which 65 were for thin melanoma (≤1 mm). There were 36 positive SLNB, 278 negative SLNB and in four cases the SLN was not located. The incidence rate for SLNB was 11.3% overall and 1.5% in thin melanomas alone. Statistical analysis identified Breslow thickness >1 mm (P = 0.006), Clark level ≥ IV (P = 0.004) and age <75 years (P = 0.035) as the strongest predictors of SLN positivity. Our overall false negativity rate was 20% (9/45) with one case of false-negative SLNB in thin melanomas.
Conclusion: Breslow thickness of the primary tumour remains the strongest predictor of SLN positivity. Our findings point to a possible limited role for SLNB in thin melanoma due to its low positivity rate, associated false-negative rate and related morbidity.
{"title":"Analysis of sentinel node positivity in primary cutaneous melanoma: an 8-year single institution experience.","authors":"K M Joyce, N M McInerney, R P Piggott, F Martin, D M Jones, A J Hussey, M J Kerin, J L Kelly, P J Regan","doi":"10.1007/s11845-017-1559-2","DOIUrl":"10.1007/s11845-017-1559-2","url":null,"abstract":"<p><strong>Background: </strong>Sentinel lymph node biopsy (SLNB) is a standard method for determining the pathologic status of the regional lymph nodes.</p><p><strong>Aims: </strong>The aim of our study was to determine the incidence and clinicopathologic factors predictive of SLN positivity, and to evaluate the prognostic importance of SLNB in patients with cutaneous melanoma.</p><p><strong>Methods: </strong>We performed a retrospective analysis of a prospectively maintained database of all patients who underwent SLNB for primary melanoma at our institution from 2005 to 2012. Statistical analysis was performed using χ <sup>2</sup> and Fischer exact test.</p><p><strong>Results: </strong>In total, 318 patients underwent SLNB, of which 65 were for thin melanoma (≤1 mm). There were 36 positive SLNB, 278 negative SLNB and in four cases the SLN was not located. The incidence rate for SLNB was 11.3% overall and 1.5% in thin melanomas alone. Statistical analysis identified Breslow thickness >1 mm (P = 0.006), Clark level ≥ IV (P = 0.004) and age <75 years (P = 0.035) as the strongest predictors of SLN positivity. Our overall false negativity rate was 20% (9/45) with one case of false-negative SLNB in thin melanomas.</p><p><strong>Conclusion: </strong>Breslow thickness of the primary tumour remains the strongest predictor of SLN positivity. Our findings point to a possible limited role for SLNB in thin melanoma due to its low positivity rate, associated false-negative rate and related morbidity.</p>","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":"2 1","pages":"847-853"},"PeriodicalIF":0.0,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s11845-017-1559-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90069697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Functional response and predation rate of Amblyseius swirskii (Athias-Henriot) on eggs of Tetranychus urticae Koch were determined on strawberry under laboratory conditions (70 ± 10% R.H. and 16L:8D h) and three constant temperatures of 25, 30 and 35°C. The type of functional response was affected by temperature. Type III functional response was determined for adult female of A. swirskii at 25°C, whereas type II was observed at 30 and 35°C. The longest handling time ( T h ) (0.6 ± 0.005) was observed at 25°C and the shortest handling time (0.46 ± 0.003) and higher attack rate ( a ) (0.56 ± 0.054) were observed at 35°C. Handling time ( T h ) decreased from 25 to 35°C. Temperature had a significant effect on the daily and total predation rates of each different stages: the predation rate increased from larva to adult and with temperature from 25 to 35°C, and the maximal value being reached at 35°C. The maximal predation capacity of female was about 40 eggs per day per females at 35°C. The results of this study showed the effect of temperature on functional response and predation rate of A. swirskii .
{"title":"Functional response and predation rate of Amblyseius swirskii (Acari: Phytosei-idae) at three constant temperatures","authors":"Ferdows Rafizadeh Afshar, M. Latifi","doi":"10.22073/PJA.V6I4.32392","DOIUrl":"https://doi.org/10.22073/PJA.V6I4.32392","url":null,"abstract":"Functional response and predation rate of Amblyseius swirskii (Athias-Henriot) on eggs of Tetranychus urticae Koch were determined on strawberry under laboratory conditions (70 ± 10% R.H. and 16L:8D h) and three constant temperatures of 25, 30 and 35°C. The type of functional response was affected by temperature. Type III functional response was determined for adult female of A. swirskii at 25°C, whereas type II was observed at 30 and 35°C. The longest handling time ( T h ) (0.6 ± 0.005) was observed at 25°C and the shortest handling time (0.46 ± 0.003) and higher attack rate ( a ) (0.56 ± 0.054) were observed at 35°C. Handling time ( T h ) decreased from 25 to 35°C. Temperature had a significant effect on the daily and total predation rates of each different stages: the predation rate increased from larva to adult and with temperature from 25 to 35°C, and the maximal value being reached at 35°C. The maximal predation capacity of female was about 40 eggs per day per females at 35°C. The results of this study showed the effect of temperature on functional response and predation rate of A. swirskii .","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2017-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V6I4.32392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41569269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Asadollah Hosseini Chegeni, Z. Telmadarraiy, M. Tavakoli, F. Faghihi
Borrelia anserina is the agent of avian borreliosis, an acute septicemic disease of a variety of avian species in tropical and warm temperate regions of the world. Avian borreliosis is one of the most widespread poultry diseases in Iran, and is of great economic importance. The present study was designed to detect B. anserina in Argas persicus ticks. Specimens were collected from the cracks of aviary in Lorestan province of Iran. Then the salivary glands, ovaries and uterus of ticks were dissected to detect B. anserina within the specific organ using molecular methods. DNA was extracted by Phenol-chloroform method and then a fragment of flagellin gene ( fla B) of B. anserina was amplified by polymerase chain reaction. According to our results, the fla B target fragment was detected in Argas persicus ticks collected from Lorestan province. It seems that B. anserina is widely distributed in A. persicus vector ticks. Based on the result, B. anserina strain of Iran is similar to B. anserina fla B sequences reported from other parts the world.
{"title":"Molecular detection of Borrelia anserina in Argas persicus (Acari: Argasidae) ticks collected from Lorestan province, west of Iran","authors":"Asadollah Hosseini Chegeni, Z. Telmadarraiy, M. Tavakoli, F. Faghihi","doi":"10.22073/PJA.V6I4.28372","DOIUrl":"https://doi.org/10.22073/PJA.V6I4.28372","url":null,"abstract":"Borrelia anserina is the agent of avian borreliosis, an acute septicemic disease of a variety of avian species in tropical and warm temperate regions of the world. Avian borreliosis is one of the most widespread poultry diseases in Iran, and is of great economic importance. The present study was designed to detect B. anserina in Argas persicus ticks. Specimens were collected from the cracks of aviary in Lorestan province of Iran. Then the salivary glands, ovaries and uterus of ticks were dissected to detect B. anserina within the specific organ using molecular methods. DNA was extracted by Phenol-chloroform method and then a fragment of flagellin gene ( fla B) of B. anserina was amplified by polymerase chain reaction. According to our results, the fla B target fragment was detected in Argas persicus ticks collected from Lorestan province. It seems that B. anserina is widely distributed in A. persicus vector ticks. Based on the result, B. anserina strain of Iran is similar to B. anserina fla B sequences reported from other parts the world.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2017-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V6I4.28372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42369660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Farshad Masoudian, M. Khanjani, A. Saboori, K. H. Irani-nejad
This paper provides a re-description and description of all ontogenetic stages of the acarid mite, Tyrophagus perniciosus Zakhvatkin, 1941, collected from the soil and under forest trees litter in Hamedan province, Western Iran.
{"title":"Ontogeny of Tyrophagus perniciosus Zakhvatkin (Acari: Acaridae) from Western Iran","authors":"Farshad Masoudian, M. Khanjani, A. Saboori, K. H. Irani-nejad","doi":"10.22073/PJA.V6I4.30042","DOIUrl":"https://doi.org/10.22073/PJA.V6I4.30042","url":null,"abstract":"This paper provides a re-description and description of all ontogenetic stages of the acarid mite, Tyrophagus perniciosus Zakhvatkin, 1941, collected from the soil and under forest trees litter in Hamedan province, Western Iran.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2017-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46943566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) is an economically important pest that devastates varieties of crops worldwide and develops significant resistance to common chemical pesticides. Ovicidal effects of two isolates of entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (isolates F and J.B. ) were evaluated on the eggs of T. urticae using a spray method at 25 ± 2°C, 60–70٪RH and a photoperiod of 16:8 h (L: D). Egg mortality was determined by using different concentrations of conidia (1 × 10 3 , 1 × 10 4 , 1 × 10 5 , 1 × 10 6 , 1 × 10 7 , and 1 × 10 8 conidia / ml). Mortality was found to increase with time and was dependent on time and conidia concentration, ranging from 4.06% on day 3 at a concentration of 1 × 10 3 to 84.37% on day 7 at a concentration of 1 × 10 8 for the F isolate and from 1.87 to 65% for the J.B. isolate, respectively. This study also investigated the direct spray of the entomopathogenic fungus, Beauveria bassiana (isolates F and J.B .) on the predatory mite, Phytoseiulus persimilis (Athias-Henriot) under laboratory conditions. The predator adults were susceptible to isolate F (total mortality ± SE: 35 ± 1.97% on the seventh day) but least susceptible to isolate J.B. (total mortality ± SE: 27.25 ± 1.33% on the seventh day). Moreover, viability of P. persimilis after spraying fungal isolate of J.B. on bean leaf discs at three time intervals (0, 24 and 48 hours) showed no significant difference. Further knowledge is needed to adjust the timing of various releases of both biological control agents to obtain maximum effectiveness in the greenhouse with minimum impact of the fungus on the predator.
{"title":"The entomopathogenic fungus Beauveria bassiana and its compatibility with Phytoseiulus persimilis (Acari: Phytoseiidae): Effects on Tetranychus urticae (Acari: Tetranychidae)","authors":"Marjan Seiedy, M. Moezipour","doi":"10.22073/PJA.V6I4.31645","DOIUrl":"https://doi.org/10.22073/PJA.V6I4.31645","url":null,"abstract":"Two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) is an economically important pest that devastates varieties of crops worldwide and develops significant resistance to common chemical pesticides. Ovicidal effects of two isolates of entomopathogenic fungus, Beauveria bassiana (Balsamo) Vuillemin (isolates F and J.B. ) were evaluated on the eggs of T. urticae using a spray method at 25 ± 2°C, 60–70٪RH and a photoperiod of 16:8 h (L: D). Egg mortality was determined by using different concentrations of conidia (1 × 10 3 , 1 × 10 4 , 1 × 10 5 , 1 × 10 6 , 1 × 10 7 , and 1 × 10 8 conidia / ml). Mortality was found to increase with time and was dependent on time and conidia concentration, ranging from 4.06% on day 3 at a concentration of 1 × 10 3 to 84.37% on day 7 at a concentration of 1 × 10 8 for the F isolate and from 1.87 to 65% for the J.B. isolate, respectively. This study also investigated the direct spray of the entomopathogenic fungus, Beauveria bassiana (isolates F and J.B .) on the predatory mite, Phytoseiulus persimilis (Athias-Henriot) under laboratory conditions. The predator adults were susceptible to isolate F (total mortality ± SE: 35 ± 1.97% on the seventh day) but least susceptible to isolate J.B. (total mortality ± SE: 27.25 ± 1.33% on the seventh day). Moreover, viability of P. persimilis after spraying fungal isolate of J.B. on bean leaf discs at three time intervals (0, 24 and 48 hours) showed no significant difference. Further knowledge is needed to adjust the timing of various releases of both biological control agents to obtain maximum effectiveness in the greenhouse with minimum impact of the fungus on the predator.","PeriodicalId":37567,"journal":{"name":"Persian Journal of Acarology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2017-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.22073/PJA.V6I4.31645","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45583742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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