Evaluation of disinfectants, algicides, and fungicides for control of orange cane blotch of blackberry in the field

Browne, Frances B.; Brannen, Phillip M.; Scherm, H.; Taylor, Joanna; Shealey, Justin; Fall, Leigh Ann; Beasley, Edward D.

doi:10.1016/j.cropro.2019.04.019

Cited by 8 publications

(12 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mono-and di-potassium salts of phosphorous acid + hydrogen peroxide (OxiPhos; BioSafe Systems, Harford, CT) substantially lowered the disease severity and disease progress compared with the nontreated control in this study. A similar result was observed by Browne et al (2019), where potassium phosphite (mono-and di-potassium salts of phosphorous acid) significantly controlled algal orange cane blotch in blackberry caused by C. virescens. Potassium phosphite acts directly by inhibiting spore germination and growth (Dobrowolski et al, 2008) or activating the plant's natural defense mechanism against different phytopathogens (Mucharromah and Kuc, 1991).…”

Section: Discussionsupporting

confidence: 83%

“…1), likely due to variability in magnolia species, crop growth stage, crop maintenance, and site conditions, including weather patterns. Browne et al (2019) also observed variable algal leaf spot disease severity among locations and years due to variable weather conditions or crop management practices.…”

Section: Discussionmentioning

confidence: 91%

“…Algal leaf spot is a threat during nursery crop production, as it can cause primary (direct) and also lead to secondary (indirect) infection or disease (Browne et al, 2019). With primary infection, reduced transpiration, photosynthetic rate, and stomatal conductance were observed in infected tea plants (Ramya and Ponmurugan, 2012), whereas algal leaf Table 3.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Comparative Performance of Chemical and Biological-based Products in Management of Algal Leaf Spot on Magnolia

Baysal-Gurel

Bika

Jennings

et al. 2020

hortte

View full text Add to dashboard Cite

Magnolia trees (Magnolia sp.) are a popular choice for consumers when choosing flowering woody plants for landscapes. Magnolia species grow in a wide variety of both temperate and tropical locations. Southern magnolia (Magnolia grandiflora) is one of the more popular magnolias due to its pleasing aesthetics: large showy flowers in a range of colors and evergreen foliage. However, magnolias can be affected by algal leaf spot. Algal leaf spot is caused by Cephaleuros virescens, which is a widespread plant parasitic green alga. There has been little research on how to treat algal leaf spot on magnolia plants. This study focuses on identifying effective biological- and chemical-based fungicides for the management of algal leaf spot disease of magnolia plants. Two experiments were conducted in a randomized complete block design with six replications per treatment and a total of 12 treatments, including a nontreated control. The first experiment (Expt. 1) was conducted in a shade house (56% shade) at McMinnville, TN, using southern magnolia plants. The second experiment (Expt. 2) was conducted at a commercial nursery in McMinnvillle, TN, in a field plot planted with ‘Jane’ magnolia (Magnolia liliiflora ‘Nigra’ × Magnolia stellata ‘Rosea’). The algal leaf spot disease severity, disease progression, plant marketability and growth parameters were evaluated. In both experiments, all treatments reduced algal leaf spot disease severity and disease progress in comparison with the nontreated control. In Expt. 1, copper octanoate, copper oxychloride, chlorothalonil water-dispersible granules, chlorothalonil suspension concentrate, didecyl dimethyl ammonium chloride, azoxystrobin + benzovindiflupyr, hydrogen peroxide + peroxyacetic acid, and mono- and di-potassium salts of phosphorus acid + hydrogen peroxide reduced the disease severity and disease progress the most and were not statistically different from one another. In Expt. 2, azoxystrobin + benzovindiflupyr, didecyl dimethyl ammonium chloride, and copper oxychloride significantly reduced disease severity and disease progress (area under disease progress curve). Treatments had no deleterious effect on plant growth parameters such as height and width, and no phytotoxicity of applied treatments or defoliation was observed. Treated magnolia plants had better plant marketability compared with the nontreated control plants. The findings of this study will help growers to achieve better management of algal leaf spot disease on magnolia trees.

show abstract

Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative Performance of Chemical and Biological-based Products in Management of Algal Leaf Spot on Magnolia

Baysal-Gurel

Bika

Jennings

et al. 2020

hortte

View full text Add to dashboard Cite

show abstract

“…Pengaruh lingkungan terhadap distribusi Cephaleuros di Fakultas Biologi UGM, seperti musim, cuaca, dan intensitas cahaya juga mengakibatkan beragamnya inang yang ditumbuhi oleh Cephaleuros. Pertumbuhan Cephaleuros sangat dipengaruhi oleh perbedaan iklim karena algal spot termasuk dalam patogen monosiklik yaitu pada satu individu terdapat satu siklus infeksi dan reproduksi selama satu musim (Browne et al, 2019, Hemphill et al, 2023. Penelitian ini dilakukan di bulan Agustus hingga September dengan kondisi lingkungan kering, intensitas curah hujan rendah, serta kelembaban yang juga rendah.…”

Section: Cephaleuros Sppunclassified

Alga Parasit Cephaleuros di Lingkungan Kampus Fakultas Biologi Universitas Gadjah Mada Yogyakarta

Rizky,

Wibisono,

Nugroho

et al. 2023

bib

View full text Add to dashboard Cite

Cephaleuros belongs to the family Trentepohliaceae, order Trentepholiales, and division Chlorophyta, and acts as a parasite on higher plants. The presence of this alga is characterized by the appearance of spots on the surface of the leaf epidermis and generally does not cause serious problems. However, in certain cases, this algal infection can cause serious problems to the leaves, fruits and stems of plants, especially in humid environments. This research objective is to identify the species of Cephaleuros in the campus of the Faculty of Biology, Gadjah Mada University, Yogyakarta. In this research, sampling was conducted using a purposive random sampling method. The samples were then identified based on macroscopic and microscopic characteristics. Two species of Cephaleuros, i.e. C. virescens and C. parasiticus, were identified as infesting several plants on the Faculty of Biology UGM campus. Each species is described and illustrated in the following article.

show abstract

“…The infections caused by them are often referred to as ‘red rust’ or ‘algal spot disease,’ which can damage economically important crops (e.g., tea, coffee, citrus) ( Wolf, 1930 ; Nelson, 2008 ; Brooks et al, 2015 ). The treatments for algal spot disease has always been a headache for phytopathologists ( Browne et al, 2019 ; Lee et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Six Newly Sequenced Chloroplast Genomes From Trentepohliales: The Inflated Genomes, Alternative Genetic Code and Dynamic Evolution

Jiao

Liu

et al. 2021

Front. Plant Sci.

View full text Add to dashboard Cite

Cephaleuros is often known as an algal pathogen with 19 taxonomically valid species, some of which are responsible for red rust and algal spot diseases in vascular plants. No chloroplast genomes have yet been reported in this genus, and the limited genetic information is an obstacle to understanding the evolution of this genus. In this study, we sequenced six new Trentepohliales chloroplast genomes, including four Cephaleuros and two Trentepohlia. The chloroplast genomes of Trentepohliales are large compared to most green algae, ranging from 216 to 408 kbp. They encode between 93 and 98 genes and have a GC content of 26–36%. All new chloroplast genomes were circular-mapping and lacked a quadripartite structure, in contrast to the previously sequenced Trentepohlia odorata, which does have an inverted repeat. The duplicated trnD-GTC, petD, and atpA genes in C. karstenii may be remnants of the IR region and shed light on its reduction. Chloroplast genes of Trentepohliales show elevated rates of evolution, strong rearrangement dynamics and several genes display an alternative genetic code with reassignment of the UGA/UAG codon presumably coding for arginine. Our results present the first whole chloroplast genome of the genus Cephaleuros and enrich the chloroplast genome resources of Trentepohliales.

show abstract

Evaluation of disinfectants, algicides, and fungicides for control of orange cane blotch of blackberry in the field

Cited by 8 publications

References 17 publications

Comparative Performance of Chemical and Biological-based Products in Management of Algal Leaf Spot on Magnolia

Comparative Performance of Chemical and Biological-based Products in Management of Algal Leaf Spot on Magnolia

Alga Parasit Cephaleuros di Lingkungan Kampus Fakultas Biologi Universitas Gadjah Mada Yogyakarta

Six Newly Sequenced Chloroplast Genomes From Trentepohliales: The Inflated Genomes, Alternative Genetic Code and Dynamic Evolution

Contact Info

Product

Resources

About