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... The field performance of a newly developed novel smart variable-rate sprayer was evaluated. The sprayer uses convolutional neural networks (CNNs) for target detection and spot-applications of agrochemicals within potato (Solanum tuberosum L.) fields attacked by lamb's quarters (Chenopodium album L.) and corn spurry (Spergula arvensis L.) weeds and the early blight potato disease caused by Alternar ...
... This work aimed to control potato pathogens using metal nanoparticles that can be integrated into potato disease management strategies. The preparation containing iron, zinc, copper and molybdenum nanoparticles (NPs) in a polymer film formed from a mixture of Na-carboxymethylcellulose and polyethylene glycol-400 was developed for potato protection from early blight (Alternaria solani Sorauer), bla ...
... In this study, we aimed to investigate the biopesticide activity of a novel fungal strain Bjerkandera adusta BK-1. The in vitro inhibitory potential of BK-1 against six species of identified phytopathogenic fungi was evaluated using a dual culture assay. In addition, in-planta treatment with BK-1 as a fungicide significantly reduced plant disease symptoms, such as grey mould, brown spot, and early ...
... A study of the effect of bioagents and dipotassium phosphate (DPP) and their combination on early blight disease reduction under greenhouse conditions was conducted. Native bacterial isolates as bio-control agents exhibited control against early blight. Five bacterial isolates were tested against the pathogen. All isolates exhibited significant antagonistic activity against Alternariasolani, isola ...
... The faba bean (Vicia faba) is a temperate grain legume, that is regaining interest due to the high demand for food and feed uses and the environmental services provided. The parasitic weed broomrape (Orobanche crenata) appears as the major constraint to agricultural production in the Mediterranean Basin. The yield stability can be managed by adjusting agronomic practices and breeding for adaptatio ...
... Potato early blight disease, Alternaria solani and A. alternate, is of worldwide importance. It is necessary to take control measures, being economic, broadly applicable and well adapted by farmers. In this regard, for an integrated pest management programs, trails were conducted on irrigation types; sprinkler, drip and furrow systems, panting methods; one and two rows, delay in planting date, sus ...
Litchi; Phytophthora; ametoctradin; azoxystrobin; blight; cyazofamid; cytochrome b; dimethomorph; enzyme activity; median effective concentration; metalaxyl; mutants; point mutation; quinones; risk; ubiquinol-cytochrome-c reductase; China
Abstract:
... BACKGROUND: Litchi downy blight, caused by Phytophthora litchii, is one of the most important diseases of litchi. Ametoctradin, as the only QioI (quinone inside and outside inhibitor) fungicide, has been registered in China in 2019. However, the ametoctradin‐resistance risk and molecular basis in Phytophthora litchii have not been reported. RESULTS: In this study, the sensitivity profile of 144 Ph ...
... Plant growth promoting fungi (PGPF) have received much attention in recent past due to their plant growth promoting ability and antagonistic activity against disease causing pathogens. They can suppress the pathogen directly by antagonistic mechanism or indirectly by inducing systemic resistance. The present study was aimed to assess the biocontrol efficacy of rhizospheric fungi, isolated from ric ...
... BACKGROUND: The chlorophyll content is a vital indicator for reflecting the photosynthesis ability of plants and it plays a significant role in monitoring the general health of plants. Since the chlorophyll content and the soil–plant analysis development (SPAD) value are positively correlated, it is feasible to predict the SPAD value by calculating the vegetation indices (VIs) through hyperspectra ...
... American chestnut (Castanea dentata) was functionally extirpated from eastern US forests by chestnut blight, caused by a fungus from Asia. As efforts to produce blight‐resistant American chestnut germplasm advance, approaches to reintroduce chestnut throughout its former range are being developed. However, chestnut is also quite susceptible to a root disease in the southern half of its former rang ...
Camellia sinensis; Inceptisols; Metarhizium anisopliae; Millettia pinnata; Pseudopestalotiopsis; Trichoderma viride; Xanthium strumarium; antagonists; biological control; biological control agents; blight; disease incidence; green tea; health services; leaves; mycelium; nutrient content; pathogens; polyphenols; India
Abstract:
... Microbial bioagents and botanicals contrastingly different in modes of action, and despite being used over the years, their comparative efficacy are not yet fully explored with regard to management of grey blight disease caused by Pseudopestalotiopsis curvatispora Petch in tea plantation of Assam, India. Four microbial antagonists-based formulations and seven botanicals at 2.5–10% concentration we ...
Samara Nunes Campos Vicentini; Giselle de Carvalho; Loane Dantas Krug; Tiago Calves Nunes; Abimael Gomes da Silva; Silvino Intra Moreira; Lucas Matheus de Deus Paes Gonçalves; Tatiane Carla Silva; Paulo Cezar Ceresini
... Biological control is considered the only viable integrated disease management practice for controlling the widely distributed and destructive foliar blight and sudden death disease caused by the fungus Rhizoctonia solani AG-1 IA on signal grass (Urochloa brizantha) pastures. Since major signal grass varieties are highly susceptible and fungicide sprays are not labeled for grass pasture cropping s ...
... Common bean (Phaseolus vulgaris L.) production in the humid tropics may increase if less predictable rainfall becomes a serious seed yield constraint in traditional areas of production. The successful production of common bean will require the effective management of common bean diseases favored by hot and humid conditions. Web blight (WB), caused by Thanatephorus cucumeris (Frank) Donk, is a seri ...
... CDC Hickie, a yellow cotyledon field pea (Pisum sativum L.) cultivar, was released in 2021 by the Crop Development Centre (CDC), University of Saskatchewan (SK, Canada), for distribution to Select seed growers through the Variety Release Committee of the Saskatchewan Pulse Growers. CDC Hickie has good lodging resistance, medium time to maturity, medium-sized round seeds, mean seed protein concentr ...
... CDC Lewochko, a yellow cotyledon field pea (Pisum sativum L.) cultivar, was released in 2018 by the Crop Development Centre, University of Saskatchewan, SK, Canada, for distribution to Select seed growers through the Variety Release Committee of the Saskatchewan Pulse Growers. CDC Lewochko has good lodging resistance, medium time to maturity, medium-sized round seeds, mean seed protein concentrati ...
... CDC Tollefson, a yellow cotyledon field pea (Pisum sativum L.) cultivar, was released in 2021 by the Crop Development Centre, University of Saskatchewan, SK, Canada, for distribution to Select seed growers through the Variety Release Committee of the Saskatchewan Pulse Growers. CDC Tollefson has good lodging resistance, medium time to maturity, medium-sized round seeds, mean seed protein concentra ...
... A plant growth-promoting rhizobacterial strain B6 was isolated from a Cowpea rhizosphere soil in the Vellodu village of Dindugul district, Tamil Nadu, India. It could be identified as Pseudomonas aeruginosa VRKK1 through biochemical and 16S rDNA gene sequencing. The plant growth promoting behaviour already exhibited by this strain, further its bioactive metabolite extracted using chloroform. Crude ...
... Iris lactea is a wide ground cover plant of importance throughout courtyards, trees and roads. From May to September in 2020 and 2021, I. lactea planted in Beijing showed white to yellow spots with black conidiomata and could lead blight expanded down from the tip of leaves. In this study, ninety‐six diseased leaves were collected from nineteen regions in Beijing, and a total of fifty‐nine Colleto ...
... Multiple sources of microplastics (MPs) in farmland could result in the changing of microbial community and the plant growth. Most studies of MPs in agricultural system have focused on the effects of single types of MPs on growth of plants, while neglect interactions between multiple types of MPs. In this study a pot-experiment was conducted to investigate the effects of multiple types of MPs, inc ...
... Phytophthora blight of pepper caused by Phytophthora capsici is a major constraint to bell pepper (Capsicum annuum) production. The long-term effectiveness of chemicals currently in use against P. capsici is uncertain due to the development of fungicide resistance by this pathogen. Hence, the efficacy of alternative chemicals such as phosphorous-acid-containing products was evaluated in this study ...