scholarly journals Phytophthora Species Recovered From Irrigation Reservoirs in Mississippi and Alabama Nurseries and Pathogenicity of Three New Species

Plant Disease ◽  
2015 ◽  
Vol 99 (10) ◽  
pp. 1390-1395 ◽  
Author(s):  
Warren E. Copes ◽  
Xiao Yang ◽  
Chuanxue Hong
Keyword(s):  
New Species ◽  
Ornamental Plants ◽  
Water Source ◽  
Phytophthora Species ◽  
Gardenia Jasminoides ◽  
Phytophthora Spp ◽  
Primary Water ◽  
Production Area ◽  
Three New Species ◽  
Test Plants

From a survey for Phytophthora spp. in containment basins at one nursery each in Alabama and Mississippi, eight species and one taxon were recovered, with Phytophthora gonapodyides dominant in cooler months and P. hydropathica in warmer months, accounting for 39.6 and 46.6% overall recovery, respectively. Among the recoveries were P. macilentosa, P. mississippiae, and P. stricta, three new species recently described from a small lake (labeled M4) that serves as a primary water source for irrigation and to feed another irrigation pond (M5) at the Mississippi nursery. Neither of ponds M4 and M5 directly receives runoff from any production area. The three new species were tested for pathogenicity with Catharanthus roseus, Gardenia jasminoides ‘August Beauty,’ Hydrangea quercifolia ‘Semmes Beauty,’ Ilex magland ‘Oakland,’ Pieris japonica ‘Mountain Snow,’ and Rhododendron × ‘Brandi Michele Raley.’ None of the three species infected any of the test plants or became established in peat or pine bark growing media. Based on the result of pathogenicity trials as well as the field observation that none of the nine Phytophthora taxa recovered from irrigation reservoirs have caused episodic disease in the nurseries, they appear to not present a high risk to ornamental plants at those nurseries.

scholarly journals Illustration of Key Morphological Characteristics of Phytophthora Species Identified in Virginia Nursery Irrigation Water

2006 ◽  
Vol 7 (1) ◽  
pp. 41 ◽  
Author(s):  
Elizabeth A. Bush ◽  
Erik L. Stromberg ◽  
Chuanxue Hong ◽  
Patricia A. Richardson ◽  
Ping Kong
Keyword(s):  
Irrigation Water ◽  
Ornamental Plants ◽  
Morphological Characteristics ◽  
Phytophthora Species ◽  
Molecular Methods ◽  
Morphological Identification ◽  
Taxonomic Identification ◽  
Effluent Water ◽  
Phytophthora Spp ◽  
Diagnostic Characteristics

Phytophthora diseases are commonly diagnosed on ornamental plants, but taxonomic identification to species can be intimidating. This illustrative guide is designed to aid diagnosticians in morphological identification of certain Phytophthora spp. that have been reported in irrigation and effluent water in nurseries. Using both morphological and molecular methods, the authors identify diagnostic characteristics that are consistent and easy to use. Accepted for publication 6 April 2006. Published 21 June 2006.

scholarly journals Three new species of Phyllocoptinae mites (Prostigmata: Eriophyidae) associated with ornamental plants in Brazil

Zootaxa ◽  
2007 ◽  
Vol 1386 (1) ◽  
pp. 39-46 ◽  
Author(s):  
DENISE NAVIA ◽  
CARLOS H.W. FLECHTMANN
Keyword(s):  
New Species ◽  
Ornamental Plants ◽  
Mite Species ◽  
Morning Glory ◽  
Delonix Regia ◽  
Ipomoea Purpurea ◽  
Three New Species ◽  
Eriophyoid Mite

Three new species of Phyllocoptinae mites (Prostigmata: Eriophyidae) from Brazil namely Acaricalus souzae n. sp. (Acaricalini), from common morning glory, Ipomoea purpurea (Convolvulaceae); Aculops fenestratus n. sp. (Anthocoptini), from royal poinciana or flamboyant, Delonix regia (Fabaceae); and Porcupinotus costaspinosus n. sp. (Anthocoptini), from Abarema cochliacarpos (Mimosaceae) are described. The eriophyoid mite species were causing no apparent damage.

scholarly journals Phytophthora Species Associated with Cranberry Root Rot and Surface Irrigation Water in New Jersey

Plant Disease ◽  
1999 ◽  
Vol 83 (3) ◽  
pp. 251-258 ◽  
Author(s):  
Peter V. Oudemans
Keyword(s):  
New Jersey ◽  
Root Rot ◽  
Water System ◽  
Phytophthora Species ◽  
Agricultural Activities ◽  
Surface Irrigation ◽  
Phytophthora Spp ◽  
Overhead Irrigation ◽  
Drainage Canals ◽  
Production Area

A lupine baiting technique was used to detect the presence of Phytophthora spp. in several streams, irrigation reservoirs, and drainage canals used in cranberry cultivation. P. cinnamomi was found to be widely distributed throughout the study area in the southern New Jersey Pinelands, and was present both upstream and downstream of agricultural activities. A second species, identified as P. megasperma, was more restricted in its distribution and was never isolated from a water system that did not also contain P. cinnamomi. In a survey of commercial cranberry production, 80% of the acreage represented (approximately 37% of total New Jersey production area) was exposed to one or both Phytophthora spp. through application of infested water from irrigation reservoirs. Based on the widespread distribution of P. cinnamomi, it is likely that this pathogen was introduced many years prior to its discovery on cranberry in the 1980s, which corresponded to the adoption of overhead irrigation in the crop. There were slight differences between the two species in seasonal occurrence. The highest levels of P. cinnamomi were found during the summer months (July to August) whereas P. megasperma was highest during the spring (April to May) and fall (September to October) months.

New species of bristletails of the genus Lepismachilis (Archaeognatha: Machilidae) from Serbia and Montenegro

2018 ◽  
Vol 58 (2) ◽  
pp. 577-587
Author(s):  
Vladimir Kaplin
Keyword(s):  
New Species ◽  
Balkan Peninsula ◽  
Species Group ◽  
Compound Eyes ◽  
Serbia And Montenegro ◽  
Sensory Field ◽  
Fore Femur ◽  
Three New Species

Abstract The fauna of bristletails of the genus Lepismachilis Verhoeff, 1910 in Montenegro and Serbia includes only one species L. (Berlesilis) targionii (Grassi, 1887) with 2 + 2 eversible vesicles on abdominal urocoxites II–VI. Three new species of this genus are described: L. (Lepismachilis) prijepolja sp. nov., L. (Lepismachilis) limensa sp. nov. from Serbia, and L. (Lepismachilis) alexandrae sp. nov. from Montenegro. All described new species belong to the species group of the subgenus Lepismachilis s. str. with 2 + 2 eversible vesicles on abdominal urocoxites II–V. Lepismachilis prijepolja sp. nov. differs from L. y-signata Kratochvíl, 1945 and L. notata Stach, 1919 by the color, drawings and ratios of the compound eyes; ratios of sensory field on fore femur of male, number of divisions of ovipositor. Lepismachilis limensa sp. nov. differs from L. hauseri Bitsch, 1974 and L. abchasica Kaplin, 2017 by ratios of paired ocelli, sensory field on fore femur of male; ratios and chaetotaxy of maxillary and labial palps. Lepismachilis alexandrae sp. nov. differs from L. abchasica by the drawings of the compound eyes; ratios of paired ocelli, sensory field on fore femur of male; number of divisions of the parameres and gonapophyses. A list of the Machilidae occurring in Balkan Peninsula is also provided.

Studies of Ptiliidae (Coleoptera) in the Spirit Collection of the Natural History Museum, London 2: New species and records from P. Hammond's visit to New Zealand in 1983–84

2018 ◽  
Vol 154 (3) ◽  
pp. 179-196
Author(s):  
Michael Darby
Keyword(s):  
New Species ◽  
New Zealand ◽  
Natural History ◽  
Natural History Museum ◽  
History Museum ◽  
The North ◽  
Three New Species ◽  
North And South

Some 2,000 Ptiliidae collected in the North and South Islands of New Zealand in 1983/1984 by Peter Hammond of the Natural History Museum, London, are determined to 34 species, four of which are new to the country. As there are very few previous records, most from the Auckland district of North Island, the Hammond collection provides much new distributional data. The three new species: Nellosana insperatus sp. n., Notoptenidium flavum sp. n., and Notoptenidium johnsoni sp. n., are described and figured; the genus Ptiliodes is moved from Acrotrichinae to Ptiliinae, and Ptenidium formicetorum Kraatz recorded as a new introduction. Information is provided to aid separation of the new species from those previously recorded.

The genus Tolmerinus Bernhauer in Borneo (Coleoptera: Staphylinidae, Staphylininae)

2018 ◽  
Vol 154 (1) ◽  
pp. 9-15
Author(s):  
Guillaume De Rougemont
Keyword(s):  
New Species ◽  
Three New Species ◽  
First Time

The genus Tolmerinus Bernhauer is recorded from Borneo for the first time with the descriptions of three new species: T. brunneus sp.n., T. sharpi sp.n.and T. tutus sp.n.

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