Pub Date : 2022-01-07DOI: 10.21608/ajesa.2022.108451.1020
A. Mohamed, A. Desoky, H. Fouad, Nourhan Amin
{"title":"Mites inhibiting fig orchards Ficus carica L. (Moraceae) in Sohag governorate","authors":"A. Mohamed, A. Desoky, H. Fouad, Nourhan Amin","doi":"10.21608/ajesa.2022.108451.1020","DOIUrl":"https://doi.org/10.21608/ajesa.2022.108451.1020","url":null,"abstract":"","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121141052","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 : 2021-12-30DOI: 10.21608/ajesa.2021.240505
M. Sweelam, Amal I Abo Zaed, H. Heikal, A. Mansour
The population density of the two spotted spider mite, Tetranychus urticae Koch, the aphid, Aphis gossypii Glover and associated spiders was monitored throughout the two seasons 2019 and 2020 at Qaha, Qalubiya and Wasta, Beni-Suef governorates, Egypt. Obtained results revealed that T. urticae increased from mid-May to reach a peak in mid-August. A. gossypii was recorded with moderate number in mid-May and gradually increased to June. Associated spiders were recorded to peak in mid-July. The highest frequency of collected spider species were Thanatus albini (Audouin), Cheiracanthium inclusum (O.P.Cambridge), Dictyna innocens (O.P.Cambridge), Mermessus denticulatus (Banks), Pulchellodromus glaucinus (Simon), Ballus piger (O.P.Cambridge) and Synema diana (Audouin).The combined effect of weather factors on population dynamics of both T. urticae and A. gossypii were insignificant over the two seasons and locations in most cases. It had less significant effect once considered pests’ population dynamics than plant age. Plant age as third degree of polynomial (emulating host plant developmental stages) had much more significant effect. Influence of weather factors and plant age combined effect explained variance was 96.05, 94.52, 88.53, 83.49% for T. urticae and A. gossypii in the first and second season, respectively at Qaha location during the two seasons. Similar results were obtained for Wasta location. The combined explained variance was 78.85, 87.05, 84.88 and 92.49 for T. urticae and A. gossypii in the first and second season, respectively. Correlation results between spiders’ counts, T. urticae and A. gossypii over the two seasons and locations was inconsistent.
{"title":"Ecological studies on Tetranychus urticae, Aphis gossypii and associated spiders on cotton plants at Qalubiya and Beni-Suef governorates in Egypt","authors":"M. Sweelam, Amal I Abo Zaed, H. Heikal, A. Mansour","doi":"10.21608/ajesa.2021.240505","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240505","url":null,"abstract":"The population density of the two spotted spider mite, Tetranychus urticae Koch, the aphid, Aphis gossypii Glover and associated spiders was monitored throughout the two seasons 2019 and 2020 at Qaha, Qalubiya and Wasta, Beni-Suef governorates, Egypt. Obtained results revealed that T. urticae increased from mid-May to reach a peak in mid-August. A. gossypii was recorded with moderate number in mid-May and gradually increased to June. Associated spiders were recorded to peak in mid-July. The highest frequency of collected spider species were Thanatus albini (Audouin), Cheiracanthium inclusum (O.P.Cambridge), Dictyna innocens (O.P.Cambridge), Mermessus denticulatus (Banks), Pulchellodromus glaucinus (Simon), Ballus piger (O.P.Cambridge) and Synema diana (Audouin).The combined effect of weather factors on population dynamics of both T. urticae and A. gossypii were insignificant over the two seasons and locations in most cases. It had less significant effect once considered pests’ population dynamics than plant age. Plant age as third degree of polynomial (emulating host plant developmental stages) had much more significant effect. Influence of weather factors and plant age combined effect explained variance was 96.05, 94.52, 88.53, 83.49% for T. urticae and A. gossypii in the first and second season, respectively at Qaha location during the two seasons. Similar results were obtained for Wasta location. The combined explained variance was 78.85, 87.05, 84.88 and 92.49 for T. urticae and A. gossypii in the first and second season, respectively. Correlation results between spiders’ counts, T. urticae and A. gossypii over the two seasons and locations was inconsistent.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131936281","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 : 2021-12-30DOI: 10.21608/ajesa.2021.240501
A. Elhalawany, J. Amrine, E. Ueckermann
During surveys of eriophyoid mites on Mangifera indica L. (Anacardiaceae) in Egypt, a new species, Aceria aegyptindicae sp. nov., was collected and is here described and illustrated. This species was found in colonies as an inquiline, under waxy coatings on both leaf surfaces, usually along the midribs, in association with Cisaberoptus kenyae Keifer, 1966. Neocalacarus mangiferae ChannaBasavanna, 1966 is recorded for the first time from Egypt and a supplementary morphological description and illustrations are given. All stages of C. kenyae are re-described, and information about other eriophyoid mites collected from mango orchards is provided. The population fluctuation of the four eriophyid mites: C. kenyae, A. aegyptindicae sp. nov., N. mangiferae and Vareeboona mangiferae (Keifer, 1946) was studied during the 2020 season in the Egyptian Governorate, Qalyubia on mango orchards ―Alphonso‖ cultivar. Populations of C. kenyae and A. aegyptindicae had three peaks in January, May and November. On the other hand, N. mangiferae had two peaks, in February and August, and V. mangiferae had two peaks in February and November.
{"title":"A new species and new record of eriophyoid mites (Trombidiformes: Eriophyoidea) from mango in Egypt with a note on the population dynamics of four eriophyoid species","authors":"A. Elhalawany, J. Amrine, E. Ueckermann","doi":"10.21608/ajesa.2021.240501","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240501","url":null,"abstract":"During surveys of eriophyoid mites on Mangifera indica L. (Anacardiaceae) in Egypt, a new species, Aceria aegyptindicae sp. nov., was collected and is here described and illustrated. This species was found in colonies as an inquiline, under waxy coatings on both leaf surfaces, usually along the midribs, in association with Cisaberoptus kenyae Keifer, 1966. Neocalacarus mangiferae ChannaBasavanna, 1966 is recorded for the first time from Egypt and a supplementary morphological description and illustrations are given. All stages of C. kenyae are re-described, and information about other eriophyoid mites collected from mango orchards is provided. The population fluctuation of the four eriophyid mites: C. kenyae, A. aegyptindicae sp. nov., N. mangiferae and Vareeboona mangiferae (Keifer, 1946) was studied during the 2020 season in the Egyptian Governorate, Qalyubia on mango orchards ―Alphonso‖ cultivar. Populations of C. kenyae and A. aegyptindicae had three peaks in January, May and November. On the other hand, N. mangiferae had two peaks, in February and August, and V. mangiferae had two peaks in February and November.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128034255","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 : 2021-12-30DOI: 10.21608/ajesa.2021.240500
A. Zaki, S. Allam, A. Mourad, H. Mesbah, Abdel Latif Aly
Specimens of Varroa mite, Varroa destructor Anderson and Trueman were collected from Egypt and Libya to compare their morphological and morphometric characters. Females were examined using a Scanning Electron Microscope (SEM). Our morphological measurements showed that there were a lot of differences between samples of Egypt and Libya. Only two morphological characters showed significant differences among the two locations specimens’ (i.e. anal plate length, anal plate length/ anal plate width (ratio III) and formula of palpal chaetotaxy). These results may be due to geographical locations between Egypt and Libya. We consider samples of Egypt and Libya as morphotypes.
{"title":"Comparison between morphological characters and ultrastructure of Varroa mite from Egypt and Libya","authors":"A. Zaki, S. Allam, A. Mourad, H. Mesbah, Abdel Latif Aly","doi":"10.21608/ajesa.2021.240500","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240500","url":null,"abstract":"Specimens of Varroa mite, Varroa destructor Anderson and Trueman were collected from Egypt and Libya to compare their morphological and morphometric characters. Females were examined using a Scanning Electron Microscope (SEM). Our morphological measurements showed that there were a lot of differences between samples of Egypt and Libya. Only two morphological characters showed significant differences among the two locations specimens’ (i.e. anal plate length, anal plate length/ anal plate width (ratio III) and formula of palpal chaetotaxy). These results may be due to geographical locations between Egypt and Libya. We consider samples of Egypt and Libya as morphotypes.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124954500","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 : 2021-12-30DOI: 10.21608/ajesa.2021.240506
Ahmed Hassan
Mean Argas (Persicargas) persicus (Oken 1818) (Acari: Argasidae) unfed and fed females weighted 3.34 and 11.50 mg, respectively. It was more than for males (2.6 and 8.27 mg), respectively. The amount of ingested blood by females (9.31mg.) was larger than males (5.65 mg.). The excreted coxal fluid was also larger in fed females (1.15 ± 0.5) than fed males (0.13 ± 0.01). Gut fluid (G) contained the least of body water. It increased after feeding in females and males (1.110 and 1.008 mg), respectively. Haemolymph fluid (H) increased in females than males after feeding.
{"title":"A study on ingested blood amount and body fluids balance of the fowl tick, Argas (Persicargas) persicus (Acari: Argasidae)","authors":"Ahmed Hassan","doi":"10.21608/ajesa.2021.240506","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240506","url":null,"abstract":"Mean Argas (Persicargas) persicus (Oken 1818) (Acari: Argasidae) unfed and fed females weighted 3.34 and 11.50 mg, respectively. It was more than for males (2.6 and 8.27 mg), respectively. The amount of ingested blood by females (9.31mg.) was larger than males (5.65 mg.). The excreted coxal fluid was also larger in fed females (1.15 ± 0.5) than fed males (0.13 ± 0.01). Gut fluid (G) contained the least of body water. It increased after feeding in females and males (1.110 and 1.008 mg), respectively. Haemolymph fluid (H) increased in females than males after feeding.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134382505","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 : 2021-12-01DOI: 10.21608/ajesa.2021.240502
A. Elhalawany, F. Saleh, A. Mesbah
Biological aspects and life table parameters of the mesostigmatid mite, Kleemannia kosi El-Badry, Nasr & Hafez (Family: Ameroseiidae) were investigated at 25±2°C and 70±5% RH on three prey types (Rhizoglyphus echinopus (Fumouze & Robin), Tyrophagus putrescentiae (Schrank) and Delia antiqua (Meigen)). The bulb mite, Rhizoglyphus echinopus was the most favorable food for this predator females as it gave the highest reproduction rate of 128 eggs/female followed by T. putrescentiae (119.5 eggs/female) and D. antiqua (88.8 eggs/female). The maximum net reproductive rate (Ro) occurred on R. echinopus recorded 92.15 individuals/generation, followed by 82.08 individuals/ generation on T. putrescentiae, while the lowest value was for D. antique (45.19 individuals/generation). Gross reproduction rate (GRR) was higher on R. echinopus (106 eggs/female/generation) and lower (58.6 eggs/female/generation) on D. antiqua. Females and males consumed a higher number of R. echinopus (342.0 and 265.5) individuals during life span than other diets. This is the first report revealing mass production and release of Ameroseiidae. Early release of the predator, K. kosi for controlling mite and insect pests on garlic (Allium sativum L., Amaryllidaceae) in field trial resulted in reducing the three pests significantly. Evaluation of crop loss due to infestation with those pests revealed a yield loss of 27.89 to 29.56% in unreleased plots compared with released one (40.58 and 41.55 kg/10 m 2 ) for 50 and 100 predators/m 2 , respectively. The release of the predatory mite decreases the garlic pests that resulting in crop production increases.
{"title":"Biological aspects, life table parameters, predation capacity and release of the predatory mite, Kleemannia kosi El-Badry, Nasr & Hafez (Mesostigmata: Ameroseiidae) for controlling three garlic (Allium sativum L.) pests","authors":"A. Elhalawany, F. Saleh, A. Mesbah","doi":"10.21608/ajesa.2021.240502","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240502","url":null,"abstract":"Biological aspects and life table parameters of the mesostigmatid mite, Kleemannia kosi El-Badry, Nasr & Hafez (Family: Ameroseiidae) were investigated at 25±2°C and 70±5% RH on three prey types (Rhizoglyphus echinopus (Fumouze & Robin), Tyrophagus putrescentiae (Schrank) and Delia antiqua (Meigen)). The bulb mite, Rhizoglyphus echinopus was the most favorable food for this predator females as it gave the highest reproduction rate of 128 eggs/female followed by T. putrescentiae (119.5 eggs/female) and D. antiqua (88.8 eggs/female). The maximum net reproductive rate (Ro) occurred on R. echinopus recorded 92.15 individuals/generation, followed by 82.08 individuals/ generation on T. putrescentiae, while the lowest value was for D. antique (45.19 individuals/generation). Gross reproduction rate (GRR) was higher on R. echinopus (106 eggs/female/generation) and lower (58.6 eggs/female/generation) on D. antiqua. Females and males consumed a higher number of R. echinopus (342.0 and 265.5) individuals during life span than other diets. This is the first report revealing mass production and release of Ameroseiidae. Early release of the predator, K. kosi for controlling mite and insect pests on garlic (Allium sativum L., Amaryllidaceae) in field trial resulted in reducing the three pests significantly. Evaluation of crop loss due to infestation with those pests revealed a yield loss of 27.89 to 29.56% in unreleased plots compared with released one (40.58 and 41.55 kg/10 m 2 ) for 50 and 100 predators/m 2 , respectively. The release of the predatory mite decreases the garlic pests that resulting in crop production increases.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122294771","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 : 2021-12-01DOI: 10.21608/ajesa.2021.240503
A. Desoky, A. Mohamed, H. Fouad, Nourhan Amin
A survey and ecological studies were carried out on mite species inhabiting fig, Ficus carica L. (Moraceae), an important fruit crop in Egypt, at Sohag governorate during 2020–2021. The occurrence of species inhabiting leaves, debris and soil of “Sultani” and “Condria” fig cultivars were considered. Results revealed the occurrence of 51 mite species. Nine phytophagous mite species presented nine genera and five families (i.e., Diptilomiopidae, Eriophyidae, Tarsonemidae, Tenuipalpidae and Tetranychidae). Thirty-one species of predaceous mites (25 genera, 13 families) and 11 species (10 genera and 8 families) miscellaneous-feeding habits were recorded. Population dynamics of Tetranychus urticae Koch, Euseius scutalis (Athias-Henriot), Tydeus oregonensis Baker, Agistemus exsertus Gonzalez and Aceria ficus (Cotté) were found to be affected by both weather factors and plant phenology. Tetranychus urticae had two peaks in mid-Jul. and early Oct. on “Sultani” and “Condria” cultivars during the two successive years. The fig bud mite, A. ficus was recorded with a high numbers in Jun. on both cultivars. Predacious mites were found to be in relation to occurring phytophagous ones. The population dynamics of phytophagous mites with the relation of temperature, relative humidity and plant age (i.e., plant phenology to emulating plant nutritional value dynamic) were fitted to a polynomial model including weather factors and plant age as third degree of polynomial over two intervals presenting two phonological intervals of plant growth pattern. Results indicated that the change in the nutritional value of the host plant was more effective on mite population dynamics than weather factors.
{"title":"Occurrence of phytophagous and predacious mites in two fig cultivars with population dynamics of the most abundant species in relation to weather factors and plant phenology at Sohag governorate, Egypt","authors":"A. Desoky, A. Mohamed, H. Fouad, Nourhan Amin","doi":"10.21608/ajesa.2021.240503","DOIUrl":"https://doi.org/10.21608/ajesa.2021.240503","url":null,"abstract":"A survey and ecological studies were carried out on mite species inhabiting fig, Ficus carica L. (Moraceae), an important fruit crop in Egypt, at Sohag governorate during 2020–2021. The occurrence of species inhabiting leaves, debris and soil of “Sultani” and “Condria” fig cultivars were considered. Results revealed the occurrence of 51 mite species. Nine phytophagous mite species presented nine genera and five families (i.e., Diptilomiopidae, Eriophyidae, Tarsonemidae, Tenuipalpidae and Tetranychidae). Thirty-one species of predaceous mites (25 genera, 13 families) and 11 species (10 genera and 8 families) miscellaneous-feeding habits were recorded. Population dynamics of Tetranychus urticae Koch, Euseius scutalis (Athias-Henriot), Tydeus oregonensis Baker, Agistemus exsertus Gonzalez and Aceria ficus (Cotté) were found to be affected by both weather factors and plant phenology. Tetranychus urticae had two peaks in mid-Jul. and early Oct. on “Sultani” and “Condria” cultivars during the two successive years. The fig bud mite, A. ficus was recorded with a high numbers in Jun. on both cultivars. Predacious mites were found to be in relation to occurring phytophagous ones. The population dynamics of phytophagous mites with the relation of temperature, relative humidity and plant age (i.e., plant phenology to emulating plant nutritional value dynamic) were fitted to a polynomial model including weather factors and plant age as third degree of polynomial over two intervals presenting two phonological intervals of plant growth pattern. Results indicated that the change in the nutritional value of the host plant was more effective on mite population dynamics than weather factors.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132646692","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 : 2021-07-20DOI: 10.21608/ajesa.2021.12819.1012
S. Eraky, A. Mohamed
{"title":"Description of adults and redescription of deutonymphs of Hormosianoetus mahunkai Eraky and Shoker, 1993 (Acari: Histiostomatidae), with identification key for histiostomatid genera.","authors":"S. Eraky, A. Mohamed","doi":"10.21608/ajesa.2021.12819.1012","DOIUrl":"https://doi.org/10.21608/ajesa.2021.12819.1012","url":null,"abstract":"","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132237103","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 : 2021-07-20DOI: 10.21608/AJESA.2021.16009.1014
A. Elhalawany
The citrus brown mite, Eutetranychus orientalis (Klein), is one of the most injurious pests of fruits, vegetables and ornamental plants worldwide. The objective of this study in order to evaluate the repellency and toxicity effect of two essential oils against E. orientalis. Essential oils were extracted of aqueous extracts from rosemary, Rosmarinus officinalis L. herbs and coriander, Coriandrum sativum L. fruits. Five concentrations 0.5, 1, 2, 3 and 4% were used for each essential oil. The chemical composition of the essential oils was characterized by GC. The results indicated that there were significant differences in efficiency of the tested essential oils on the developmental stages of E. orientalis. The coriander was the most toxic for controlling the egg stage, larval, nymphal and adult stages of E. orientalis than rosemary. Coriander oil was the most potent oil tested eggs (LC50= 1.26 and LC90= 4.82), while rosemary oil were the least toxic oil tested on eggs (LC50=1.49 and LC90=7.94%) after 7 days. The LC50 were 0.16& 1.71, 0.21& 1.09 and 0.77& 4.41% for larvae, nymph and adult females for coriander and rosemary, respectively. Thus, the coriander essential oil became more effective than rosemary with increase in the doses. Moreover, the coriander oil is highly repellency effect than rosemary on female E. orientalis. The results suggest that coriander and rosemary essential oils and its two major constituents Linalool and camphor can potentially be used for the management of E. orientalis.
{"title":"Evaluation of the Efficiency of Two Plant Extracts for the Citrus Brown Mite Eutetranychus orientalis (Acari: Tetranychidae)","authors":"A. Elhalawany","doi":"10.21608/AJESA.2021.16009.1014","DOIUrl":"https://doi.org/10.21608/AJESA.2021.16009.1014","url":null,"abstract":"The citrus brown mite, Eutetranychus orientalis (Klein), is one of the most injurious pests of fruits, vegetables and ornamental plants worldwide. The objective of this study in order to evaluate the repellency and toxicity effect of two essential oils against E. orientalis. Essential oils were extracted of aqueous extracts from rosemary, Rosmarinus officinalis L. herbs and coriander, Coriandrum sativum L. fruits. Five concentrations 0.5, 1, 2, 3 and 4% were used for each essential oil. The chemical composition of the essential oils was characterized by GC. The results indicated that there were significant differences in efficiency of the tested essential oils on the developmental stages of E. orientalis. The coriander was the most toxic for controlling the egg stage, larval, nymphal and adult stages of E. orientalis than rosemary. Coriander oil was the most potent oil tested eggs (LC50= 1.26 and LC90= 4.82), while rosemary oil were the least toxic oil tested on eggs (LC50=1.49 and LC90=7.94%) after 7 days. The LC50 were 0.16& 1.71, 0.21& 1.09 and 0.77& 4.41% for larvae, nymph and adult females for coriander and rosemary, respectively. Thus, the coriander essential oil became more effective than rosemary with increase in the doses. Moreover, the coriander oil is highly repellency effect than rosemary on female E. orientalis. The results suggest that coriander and rosemary essential oils and its two major constituents Linalool and camphor can potentially be used for the management of E. orientalis.","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133868065","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 : 2021-07-20DOI: 10.21608/ajesa.2021.6720.1010
A. Elhalawany
{"title":"A New Species and Record of Aceria (Acari: Prostigmata: Eriophyoidea) on Weeds from Egypt","authors":"A. Elhalawany","doi":"10.21608/ajesa.2021.6720.1010","DOIUrl":"https://doi.org/10.21608/ajesa.2021.6720.1010","url":null,"abstract":"","PeriodicalId":298155,"journal":{"name":"Acarines: Journal of the Egyptian Society of Acarology","volume":"53 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123195555","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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