scholarly journals Arthropod Pests, Plant Diseases and Abiotic Disorders and their Management on Viburnum Species in the Southeastern U.S.: A Review

2014 ◽  
Vol 32 (2) ◽  
pp. 84-102
Author(s):  
William E. Klingeman ◽  
Sarah A. White ◽  
Anthony LeBude ◽  
Amy Fulcher ◽  
Nicole Ward Gauthier ◽  
...  
Keyword(s):  
Plant Diseases ◽  
Eastern North America ◽  
Deciduous Trees ◽  
Pests And Diseases ◽  
Green Industry ◽  
Efficient Management ◽  
Landscape Plants ◽  
Tropical Areas ◽  
The Caribbean ◽  
Industry Professionals

The genus Viburnum encompasses a group of about 150 species of evergreen, semi-evergreen or deciduous trees and large shrubs. Viburnums are native to temperate, subtropical and tropical areas of southeastern Asia, eastern North America, Central America, the Caribbean and parts of South America. Native and nonnative Viburnum species have become prominent landscape plants in the southeastern United States due to their beauty, utility, relative ease of maintenance and broad adaptability to the region's climate and soils. Efficient management of viburnum pests to maintain healthy viburnum plants in nurseries and landscape settings is crucial for sustaining the economic competitiveness and profitability of green industry professionals competing in the horticulture marketplace. Diversity of species within the genus, however, is vast, and can contribute to many host-pest complexes that differ among growing environments and cause severe economic or aesthetic losses. Additionally, some abiotic disorders may mimic biotic damage or may render viburnum more susceptible to pests and diseases. This review focuses on viburnum culture in production and landscape settings with an emphasis on major insect and mite pests, plant diseases and abiotic disorders affecting management of Viburnum species in nursery and landscape settings.

scholarly journals Management of Pests, Plant Diseases and Abiotic Disorders of Magnolia Species in the Southeastern United States: A Review

2012 ◽  
Vol 30 (4) ◽  
pp. 223-234 ◽  
Author(s):  
Gary W. Knox ◽  
William E. Klingeman ◽  
Mathews Paret ◽  
Amy Fulcher
Keyword(s):  
Central America ◽  
Southeastern United States ◽  
Plant Diseases ◽  
Eastern North America ◽  
Deciduous Trees ◽  
Species Introductions ◽  
Pests And Diseases ◽  
Landscape Plants ◽  
Tropical Areas ◽  
The Caribbean

The genus, Magnolia, encompasses a group of about 240 species of evergreen or deciduous trees and large shrubs. Magnolias are native to temperate, subtropical and tropical areas of southeastern Asia, eastern North America, Central America, the Caribbean and parts of South America. Native and nonnative Magnolia species have become prominent landscape plants in the southeastern U.S. due to their beauty, utility, relative ease of maintenance and broad adaptability to the region's climate and soils. Species introductions, breeding and selection programs over the last 50 years have produced superior selections with improved flowering, new flower colors and ornamental foliage and buds often featuring brown, copper or gold indumentum. Magnolia health and pest management is sometimes overlooked in both landscape and production settings because magnolia is considered to have relatively few pest and disease problems. Some abiotic disorders may mimic biotic damage or may render magnolia more susceptible to pests and diseases. When they occur, abiotic disorders, pests or diseases on magnolia can cause significant economic or aesthetic losses. This review focuses on magnolia culture in production and landscape settings with an emphasis on major pests, plant diseases and abiotic disorders affecting management of Magnolia species.

scholarly journals Impact of White-Tailed Deer (Odocoileus virginianus Zimmerman) on Ornamental Plants in Alabama Green Industries and Home Landscapes

2013 ◽  
Vol 31 (1) ◽  
pp. 14-20
Author(s):  
Ashley B. Witcher ◽  
Carolyn W. Robinson ◽  
Christine H. Coker ◽  
D. Joseph Eakes ◽  
Stephen S. Ditchkoff ◽  
...  
Keyword(s):  
Odocoileus Virginianus ◽  
Ornamental Plants ◽  
Botanic Garden ◽  
Master Gardener ◽  
Green Industry ◽  
Deer Browse ◽  
Electric Fencing ◽  
Extent Of Damage ◽  
Preventive Methods ◽  
Industry Professionals

Nursery and landscape professionals as well as homeowners throughout Alabama continue to experience deer damage to ornamental plants due to the increasing populations of white-tailed deer (Odocoileus virginianus Zimmerman). To understand the extent of damage, surveys were created for green industry professionals and homeowners. The industry survey was sent to members of the Alabama Nursery and Landscape Association (ALNLA) (N = 223). The homeowner survey was sent to nine Master Gardener associations and administered through one day of onsite surveys at Huntsville Botanic Garden (N = 668). Questions inquired if respondents encountered injury to plants from whitetail deer, what types of preventive methods they were using, plants typically browsed, and extent of plant loss annually as a result of deer activity. Fifty-five percent of green industry professionals and 37% of homeowners answered ‘yes’ to damage problems, and of those, more homeowners (61%) than industry (41%) employed preventive methods to reduce deer browse. High fencing, electric fencing, Liquid Fence® repellent, and motion irrigation were the most effective of eleven preventive measures listed. Indian hawthorn (Rhaphiolepis indica L.) and hosta (Hosta spp.) were the most commonly damaged plants according to industry and homeowners, respectively. The majority of homeowners experienced damage during the spring, while industry participants reported most damage during the winter and fall months.

scholarly journals EFFECTS OF LATE BLIGHT RESISTANT POTATO CONTAINING RB GENE ON THE SOIL MICROBES, PESTS AND PLANT DISEASES

2014 ◽  
Vol 15 (2) ◽  
pp. 47
Author(s):  
Eny Ida Riyanti ◽  
Edy Listanto ◽  
Alberta Dinar Ambarwati
Keyword(s):  
Late Blight ◽  
Soil Microbes ◽  
Block Design ◽  
Late Blight Resistance ◽  
Alternaria Solani ◽  
Plant Diseases ◽  
Bacterial Populations ◽  
Soil C ◽  
Pests And Diseases ◽  
Negative Effect

Late blight caused by Phytophthora infestans is an important disease on potato.  Several potato hybrids have been generated by crossing local varieties (Atlantic and Granola) with Katahdin SP951 which contains late blight resistance gene RB.  Prior to release, these hybrids need to be evaluated for their environ-mental effects on non-target organisms and natural pests and diseases. The objectives of the study were to investigate the effect of LBR potato hybrids on beneficial soil microbes, pests and diseases. The trial was conducted in the confined field trial (CFT) in Lembang, West Java. The parental non-transgenic (NT) clones (Granola, Atlantic and Katahdin) and LBR hybrids (four clones of Atlantic x Katahdin SP951 hybrids; 10 clones of Granola x Katahdin SP951) were planted at a plant spacing of 30 cm x 70 cm. Fungicide applications were used as treat-ments (no spray, five and twenty times sprays). The experi-ment was arranged in a randomized completely block design with three replications. The parameters determined were popula-tions of N2 fixing and P solubilizing bacteria, soil C/N ratio as well as natural pests and diseases. The results showed that the transgenic LBR potato hybrids did not have negative effect on N fixing bacteria. The bacterial populations were around 1010-11 cells g-1 soil before planting, 1012 cells at 1.5 months after planting (MAP) and 108 cells after harvest. For P- solubilizing bacteria, their populations were 1010 cells before planting, 1012 cells at 1.5 MAP and 1011 cells g-1  soil after harvest. The soil C/N ratio of the transgenic plot was not statistically different compared to non-transgenic plot, i.e. 12-15 before planting, 10-11 at 1.5 MAP, and 10 after harvest in non-spray plot. Pests and diseases such as Alternaria solani, Liriomyza, potato tubber moth, aphid and mites on the transgenic and non-transgenic plots were statistically not different. The resistance score for A. solani was 7.2 (parental tansgenic) and 7.6 (parental non-transgenic); for Liriomyza it was 2.07 (parental transgenic) and 2.32 insect per plant (parental non-transgenic), the PTM was 0.63 (parental transgenic) and 0.73 insect per plant (parental non-transgenic), aphid and mites were 0.75 (parental transgenic) and 1.68 insects per plant (parental non-transgenic). The study indicated that LBR potato hybrids did not have any negative impacts on non-target organisms.

scholarly journals Asynchronous Continuing Education for Iowa’s Green Industry Professionals

2013 ◽  
Vol 23 (5) ◽  
pp. 677-682
Author(s):  
Ann Marie VanDerZanden
Keyword(s):  
Pass Rate ◽  
Advanced Training ◽  
State University ◽  
Iowa State University ◽  
Web Based ◽  
Green Industry ◽  
Certification Exam ◽  
Online Format ◽  
Asynchronous Training ◽  
Industry Professionals

A collaborative two-part project between Iowa State University Horticulture Extension and the Iowa Nursery and Landscape Association (INLA) resulted in an online, asynchronous training program to prepare green industry professionals for the Iowa Certified Nursery Professional (ICNP) exam, and to provide advanced training through webinars. Since 2008, members have accessed a set of 20 training modules that cover plant identification and content on the written portion of the certification exam. In the 6 years since the modules have been used, the pass rate for the written portion of the exam has increased from 57% (2005–07, 18 participants) to 85% (2008–13, 49 participants). A survey administered to participants between 2008 and 2013 gathered information on participant demographics, interest in learning in an online format, usefulness and applicability of information in preparing for the exam, module usability, and how the modules impacted their learning. Participants felt that the modules were an effective way to deliver content (4.45 out of 5) and reported they were comfortable using a web-based format to learn (4.89 out of 5). Advanced training was delivered to members through three webinar series: five webinars in 2011 and four webinars each in 2012 and 2013. Although attendance to the live webinar sessions was limited, the archived versions have been accessed a number of times.

A review of the cleptoparasitic bee genus Triepeolus (Hymenoptera: Apidae).-Part I

Zootaxa ◽  
2008 ◽  
Vol 1710 (1) ◽  
pp. 1 ◽  
Author(s):  
MOLLY G. RIGHTMYER
Keyword(s):  
Central America ◽  
New World ◽  
Geographic Range ◽  
Eastern North America ◽  
Subsequent Paper ◽  
New Combinations ◽  
Widespread Species ◽  
Species Groups ◽  
Males And Females ◽  
The Caribbean

The cleptoparasitic bee genus Triepeolus is a widespread, species-rich group that has never been revised throughout its geographic range. Herein I review 103 species of Triepeolus, including all but those that belong to the newly defined Triepeolus verbesinae and Triepeolus simplex species groups (these will be the topic of a subsequent paper). I present three keys to the species, which together cover the genus throughout its range in the New World; the keys are to the females of North and Central America, the males and females from Eastern North America, and the males and females from South America and the Caribbean. I propose the following 37 new species: Triepeolus antiochensis, T. argentimus, T. argus, T. bimorulus, T. charlesi, T. circumculus, T. claytoni, T. cruciformis, T. diffusus, T. dilutus, T. edwardi, T. engeli, T. exilicurvus, T. flavigradus, T. fulgidus, T. griswoldi, T. interruptus, T. isohedrus, T. jennieae, T. joliae, T. lateralis, T. margaretae, T. mauropygus, T. melanarius, T. micheneri, T. nayaritensis, T. parkeri, T. partitus, T. parvidiversipes, T. parvus, T. perpictus, T. phaeopygus, T. punctoclypeus, T. quadratus, T. simulatus, T. vernus, and T. warriti, and propose the new combinations Triepeolus laticeps (Friese), Triepeolus tepanecus (Cresson) and Triepeolus zacatecus (Cresson). I newly synonymize 45 of the 169 previously proposed Triepeolus names, for a total of 51 synonymies: T. alachuensis Mitchell under T. rufithorax Graenicher; Epeolus albopictus Cockerell, E. costaricensis Friese, and E. flavocinctus Friese under T. aztecus (Cresson); T. alpestris Cockerell, T. amandus Cockerell, and T. vandykei Cockerell and Sandhouse under T. paenepectoralis Viereck; E. bardus Cresson, T. mesillae Cockerell, and T. pimarum Cockerell under T. distinctus (Cresson); T. brunneus Cockerell under T. balteatus Cockerell; T. charlottensis Mitchell under T. brittaini Cockerell; T. cirsianus Mitchell under T. donatus (Smith); T. concinnus Cockerell under T. townsendi Cockerell; T. coquilletti Cockerell, T. helianthi arizonensis Cockerell, T. helianthi pacificus Cockerell, T. lineatulus Cockerell and Sandhouse, and T. maculiventris Cockerell under T. helianthi (Robertson); T. dichropus Cockerell, T. eldredi Cockerell, T. helianthi grandior Cockerell, T. pallidiventris Cockerell and Sandhouse, T. rectangularis Cockerell, and T. wyomingensis Cockerell under T. texanus (Cresson); T. digueti Cockerell and E. nobilis Friese under T. intrepidus (Smith); T. floridanus Mitchellunder T. georgicus Mitchell; T. fortis Cockerell, T. insolitus Cockerell, and T. trilobatus Cockerell under T. martini (Cockerell); T. foxii Cockerell under T. rufoclypeus (Fox); T. lestes Cockerell under T. subalpinus Cockerell; T. loganensis Cockerell and T. sandhousae Cockerell under T. fraserae Cockerell; T. nautlanus Cockerell under T. lunatus (Say); E. nigriceps Smith under T. robustus (Cresson); E. oswegoensis Mitchell under T. pectoralis (Robertson); T. perelegans Cockerell and T. trichopygus Cockerell and Timberlake under T. penicilliferus (Brues); T. signatus Hedicke under T. ventralis (Meade-Waldo); T. stricklandi Cockerell under T. subalpinus Cockerell; E. superbus Provancher and E. texanus nigripes Cockerell under T. remigatus (Fabricius); and E. utahensis Cockerell under T. heterurus (Cockerell and Sandhouse).

scholarly journals Mammomonogamus laryngeus: an unusual cause of acute and chronic cough in Caribbean area

2021 ◽  
pp. 00814-2020
Author(s):  
Moustapha Agossou ◽  
Sandy Jean-Baptiste ◽  
Ninon Ehret ◽  
Nicole Desbois-Nogard ◽  
Moustapha Drame ◽  
...  
Keyword(s):  
Chronic Cough ◽  
Endemic Area ◽  
Living Conditions ◽  
Caribbean Area ◽  
Diagnostic Hypothesis ◽  
Tropical Areas ◽  
The Caribbean ◽  
General Signs ◽  
Antiparasitic Treatment

Mammomonogamosis is a parasitosis caused by a nematode of the genus Mammomonogamus. This parasitosis persists in certain tropical areas, particularly the Caribbean, despite the improvement in the living conditions of the populations. The main symptomatology is cough, which may be accompanied by some general signs and hypereosinophilia. The worms are found in the course of bronchial endoscopy. Patients receive antiparasitic treatment after the extraction.This parasitosis can infect tourists who are frequent in the region.It is important not to ignore such a diagnostic hypothesis when faced with an unexplained cough in a person who has stayed in an endemic area.

scholarly journals A Collaborative Effort to Train Green Industry Professionals

2006 ◽  
Vol 16 (1) ◽  
pp. 143-145 ◽  
Author(s):  
Ann Marie VanDerZanden ◽  
Linda R. McMahan ◽  
Neil Bell ◽  
Paul Ries ◽  
Patty Williams ◽  
...  
Keyword(s):  
Professional Organizations ◽  
State University ◽  
Collaborative Project ◽  
Green Industry ◽  
Seminar Series ◽  
Overall Evaluation ◽  
And Behavior ◽  
Educational Seminar ◽  
Oregon State University ◽  
Industry Professionals

A collaborative project between the Oregon State University Extension Service, and the green industry and allied professional organizations resulted in an educational seminar series for landscape professionals. In 2003 and 2004, the seminar series consisted of seven 3.5-hour sessions covering a range of horticultural topics and capitalized on expertise of extension personnel and green industry professionals. After the 2004 series, a survey was sent to all participants to determine attendance, overall evaluation, usefulness and applicability of information, participant learning, and behavior change as a result of the seminars. The response rate was 31%. Overall, participants gave the seminars a positive rating. A majority (83%) of respondents reported they had applied information learned at the seminar(s), and showed a significant increase in understanding of a subject as a result of participating in the seminar(s). Further, 98% of those who applied this information reported making multiple changes to their practices or recommendations to clients in the 6 months following the seminars.

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