1,720,973 research outputs found

    Eriophyoid (Trombidiformes: Eriophyoidea) mite fauna of Miandoab region in Iran with redescription of Aceria kiefferi (Nalepa)

    Full text link
    During the study of the eriophyoid mite fauna of Miandoab region (West Azerbaijan province, Iran), specimens of two eriophyoid families, four subfamilies, four tribes, 11 genera and 19 species were collected and identified. Among them, three species including Aceria kiefferi (Nalepa), Phyllocoptes bilobospinosus Chetverikov and Diptacus gigantorhynchus (Nalepa) were recorded for the first time in Iran. The most abundant species was Acalitus phloeocoptes (Nalepa) and six other species including Aceria cf. tosichella Keifer, A. anthocoptes (Nalepa), Calepitrimerus baileyi Keifer, Aculus fockeui (Nalepa &Trouessart), Abacarus cf. hystrix (Nalepa) and Rhynophytoptus nemalobos Lotfollahi &de Lillo were abundant species in the surveyed region. The old species, A. kiefferi is redescribed and illustrated herein, according to the current standard, due to the poor details of the previous old descriptions

    Eight new records for the eriophyid (Trombidiformes Eriophyoidea Eriophyidae) mite fauna of Iran

    No full text
    Trees from Juglandaceae, Ulmaceae, Salicaceae, Leguminosae and Betulaceae were sampled during two growing seasons, 2010 and 2011, in the southwest region of East Azerbaijan province, Iran, in order to survey their eriophyid mite fauna. Among identified taxa, eight species appeared to be new for the Iranian eriophyid fauna: Coptophylla lamimani (Keifer, 1939b), Stenacis palomaris Keifer, 1970, Shevtchenkella juglandis (Keifer, 1951), Anthocoptes striatus Ponomareva, 1978, Aculus mogeri (Farkas, 1960), Aculops unguiculatus (Nalepa, 1897), Aculops allotrichus (Nalepa, 1894) and Tegolophus califraxini (Keifer, 1938). Supplementary descriptions were given for Sh. ulmi (Farkas, 1960), A. striatus, A. mogeri, A. unguiculatus and A. allotrichus. In this study, Alhagi maurorum Medik (Leguminosae) and Fraxinus angustifolia Vahl. subsp. angustifolia (Oleaceae) were reported as new host plants for A. allotrichus and T. califraxini, respectively. Remarks on the eriophyid distribution in East Azerbaijan were also given

    Emergence of Acalitus phloeocoptes (Acari: Eriophyoidea) in relation to duration and type of cold exposure.

    No full text
    The plum bud gall mite, Acalitus phloeocoptes (Nalepa) is an important pest in Miandowab region (West Azerbaijan province, Iran). The feeding activity of these mites create galls around buds that lead to tree death after few years and made fruit decrease of the host plants. Early in the spring, overwintering females migrate from the galls toward new buds where they inhabit and feed. The controlling of this pest is depended to the investigation on its biology that must be done. Regarding the study of the mite emergence in relation to duration and type of cold exposure, on early January 2017, 100 number of 1/2 year old plum branches in an orchard at Miandowab were marked with ribbon tapes as field-wintered group and another 100 branches were brought to the laboratory and stored in refrigerator with constant 3°C as laboratory-stored group. From 30 February to 24 March 2017, 12 branch sections were removed from laboratory cold-storage and 12 branches were collected from the orchard at two weeks intervals. Selected branches had the similar diameter and gall size. Three branches selected for each sides including north, south, east and west. A stickyband trap was placed near the gall on each branch and branches were placed at 15°C and 13:11 (L: D) h photoperiod. Traps were replaced on 1, 2, 3, 4, 5, 6, 10, 14, 21 and 28 days after trap placement, and captured mites were counted using magnification 10 of Leitz LABORLUX S microscope until no more mites were trapped. For each time by cold-storage combination, the cumulative distribution of the proportion of mites trapped was calculated for each branch. The number of days of median emergence for each branch in a sample was estimated by linear interpolation to the x-axis. The mean number of days to median emergence was then calculated for each time by cold storage combination, and a comparison between means for emergence from laboratory-stored and field-wintered branches at each collection date was made using MSTATC software. In general the mean time of 50% emergence of mites from field-wintered branches (4.3 days) was more than that in laboratory-stored branches (3.8 days), but this difference between the two groups of branches was not significant. This time was almost constant in field-wintered group (3.7–4.1 days), but there were more variation in laboratory-stored branches (3.3–5.1 days)

    One new Aceria species (Acari: Trombidiformes: Eriophyoidea) from Halocnemum strobilaceum in Iran.

    No full text
    One of the greatest potential uses of halophytic plants such as Halocnemum strobilaceum (Pall.) M. Bieb. (Amaranthaceae: Salicornioideae) probably rests in their utilization as forage and fodder. It is particularly relevant for some countries such as Iran with serious soil salinity problems. Until now seven eriophyid species described from the plants of family Amarantaceae that among them four species belong to Aceria genus and none of them are from the plants of genus Halocnemum. During the study on Halocnemum strobilaceum (Pall.) M. Bieb. plant samples collected in Ajabshir region of East Azerbaijan province (Iran) on late July 2016, their eriophyoid mites were recovered by means of a modified washing method. The mites were slide mounted according to Baker et al. (1996). All morphological measurements were taken by means of a phase contrast microscope Olympus BX53 according to Amrine and Manson (1996) as modified by de Lillo et al. (2010). In result a species of Aceria genus identified, illustrated, investigated with the aid of scanning electron microscopy (SEM) and is cosidered as Aceria sp. nov. This species is the first eriophyoid species recorded from Halocnemum plants. The new species compared with all species described from the plants of family Amarantaceae and showed similarities with Aceria amaranthi Abou-Awad & El- Banhawy, 1992 described from Amaranthus sp. in Dar El-Salam of Tanzania. A. amaranthi caused numerous galls on both leaf surface and malformation of the leaves, but the new species was vagrant in high population. The prodorsal shield pattern of new species composed of lines made by longitudinal slight bumps including median line with one or two V-shape mark at the basal part, complete admedian, first and second submedian lines and broken lateral lines but A. amaranthi had complete median, admedian and first and second submedian curved lines and two curved dashes between first and second submedian lines. These two species also differ in ventral semiannuli number (56 versus 70 in A. amaranthi), empodium rays number (6 versus 5 in A. amaranthi), and length of setae sc (16–18 versus 25 in A. amaranthi), c2 (48–56 versus 11 in A. amaranthi), d (78 versus 37 in A. amaranthi), e (57–63 versus 9 in A. amaranthi), f (27–30 versus 16 in A. amaranthi) and 3a (37–55 versus 12 in A. amaranthi)

    Two new eriophyid mites (Acari: Trombidiformes: Eriophyoidea) on Rubia tinctorum L. in Iran.

    No full text
    Two new species of mites (Acari: Eriophyoidea) are described from Rubia tinctorum L. (Rubiaceae) in the south-west of East Azerbaijan Province, Iran: Leipothrix retidorsi sp. nov. and Aculops rubitinctus sp. nov. This is the first record of the genus Leipothrix from Rubiaceae and the first record of Aculops from the genus Rubia

    Plum bud gall mite survival in different sides of host tree.

    No full text
    The plum bud gall mite, Acalitus phloeocoptes (Nalepa) is a pest of Rosaceae plants. The feeding activity of this mite create galls around buds. Adult A. phloeocoptes overwintering females survive in the hardened galls as the infective population for the next year. After the serious damages observed in plum trees of Miandowab region, sampling was done and the pest identified as A. phloeocoptes. No economic damage was disclosed in Iran before and it seems the mites spread very fast and the problem grows every year. So this mite biology must be investigated. Regarding the study of the survived mites in different side branches, on early January 2017, 100 branches of one or two years old in four sides including north, south, east and west of each plum trees of an orchard were marked with ribbon tapes as field-wintered group and another 100 branches were brought to the laboratory and stored in constant 5°C as laboratory-stored group. From 30 February to 24 March 2017, 12 branch sections were removed from laboratory cold-storage and 12 branches were collected from the orchard at two weeks intervals. A sticky-band trap was placed near the gall on each branch and branches were placed at 15°C and 13:11 (L: D) h photoperiod. Traps were replaced every 24 hours and captured mites were counted using magnification 10 of Leitz LABORLUX S microscope until no more mites were trapped. Finally the total mites captured in each branch counted and a comparison between means for total emerged mites from the two group branches of different sides at each collection date was made using MSTATC software. The mean number of total mites emerged from field-wintered branches (592) was more than that in laboratory-stored branches (111). It shows that the mites better survived in the field and constant 3°C is fatal for them. The comparison between means for total emerged mites from branches of different sides showed significant difference between them. The south side branches had more emerged mites (mean = 483.1) and the north and west branches grouped as the sides with lowest emerged mites (respectively 321.1 and 261.2). It was predictable and the more worm condition of the south branches in cold regions such as Miandowab were more favourable condition for the overwintering females, because in this region there are many winter days with sub-zero minimum temperatures that will kill many of them

    Redescription of aceria varia and tegoprionus dentatus (Trombidiformes: Eriophyoidea: Eriophyidae) from Iran

    Full text link
    This paper describes two eriophyid species, poorly detailed in the past, which have been found for the first time in Iran. Aceria varia (Nalepa) (Eriophyinae: Acerini) was collected on Populus alba L. (Salicaceae) and Tegoprionus dentatus (Nalepa) (Phyllocoptinae: Anthocoptini) on Galium aparine L. (Rubiaceae) in Miandoab region of West Azerbaijan province (Iran). More information about the type host plants, other hosts and habitus of five Aceria species associated with P. alba and a gross comparison of some traits among Tegoprionus species known worldwide are provided

    A contribution to the knowledge of the eriophyoid mites (Trombidiformes: Eriopnyidae) associated to Lythraceae with description of a new species from Iran

    Full text link
    A new eriophyid species (Trombidiformes: Eriophyidae). Aceria salicariae Lotfollahi & Tajaddod sp. nov., from the Ajabshir region in southeastern East Azerbaijan Province in Iran, is described and illustrated. A key to all known eriophyoid species collected on the plants of family Lythraceae is presented. Information about their type hosts, type localities and relation to the host plant as well as remarks about available descriptions of these species are provided

    One new Aculus species (Acari: Eriophyoidea) from Ajabshir, Iran.

    No full text
    Until now about 19 eriophyoid species have been described from plants of family Apiaceae. Among them, three species belong to the Aculus genus including: A. eurynotus (Nalepa, 1894) from Torilis arvensis (Huds.) Link in Rheinbrohl, Germany; A. aphanotrichus (Liro, 1943) from Angelica sylvestris L. in Särkisalo, Regio turkuensis, Finland; A. pimpinellae (Liro, 1941) from Pimpinella saxifraga L. in Hollola, Hatsina, Tavastia australis Natural Province, Finland. Regarding the study of eriophyoid mite fauna of Ajabshir region in Iran, sampling was done on the plants of family Apiaceae during late July 2016. In result eriophyid mites found on the host plant Eryngium thyrsoideum Boiss. and were recovered by means of a modified washing method. The mites were slide mounted according to Baker et al. (1996). All morphological measurements were taken by means of a phase contrast microscope Olympus BX53 according to Amrine and Manson (1996) as modified by de Lillo et al. (2010). The mites identified as a new species of the genus Aculus. Until now 13 of more than 297 Aculus species have been found in Iran and two Aceria and one Shevtchenkella species have been found on Eryngium plants. Among them Shevtchenkella denticulata Lotfollahi, de Lillo & Haddad, 2014 is the only eriophyoid mite found on E. thyrsoideum. So this Aculus sp. nov. is the forth eriophyoid species and first Aculus species from Eryngium plants. The new species compared with all species found on Apiaceae plants and similarities with the species A. aphanotrichus have been found in dorsal semiannuli number, smooth genitalia coverflap and setae sc length. However these two species can be distinguished from each other in the following features: prodorsal shield pattern (smooth in A. aphanotrichus versus with lines made by slight longitudinal bumps in the new species); empodium rays number (5 in A. aphanotrichus and 4 in the new species); setae h1 presence (absent in A. aphanotrichus and present in the new species); setae d length (35 in A. aphanotrichus and 70–80 in the new species). This new species was vagrant on the host plant and no apparent damage was observed

    Two new eriophyoid mite species (Acari: Prostigmata: Eriophyidae) on Euphorbia spp. (Euphorbiaceae) from Iran

    No full text
    Eriophyoid mites infesting spurges (Euphorbiaceae) were surveyed in Kandovan and Govgan, southwest of East Azerbaijan Province in Iran, during 2010 and 2011. Two new species are described and illustrated: Aculops seguieranae n. sp. from Euphorbia seguierana Necker and Euphorbia cheiradenia Boiss. et Hohen, and Aceria cheiradeniae n. sp. from E. cheiradenia. No damage symptoms were observed
    corecore