Screening of alternative products for integrated pest management of cucurbit powdery mildew in Sweden

Rur, Mira; Rämert, Birgitta; Hökeberg, Margareta; Grenville‐Briggs, Laura J.; Liljeroth, Erland

doi:10.1007/s10658-017-1258-x

Cited by 26 publications

(15 citation statements)

References 27 publications

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“…Increased activity of pathogenesis-related proteins such as glucanase, chitinase, and peroxidase has also been reported (Schneider and Ullrich 1994). Regalia was previously shown to be effective in reducing powdery mildew development on a number of crops, including cucumber (Fofana et al 2002;Rur et al 2018), tomato (Konstantinidou-Doltsinis et al 2006), squash (Zhang et al 2016), and wasabi (Betz and Punja 2020). When tested on cannabis, Regalia Maxx reduced powdery mildew development in all three trials, showing efficacy under a range of disease pressures.…”

Section: Discussionmentioning

confidence: 75%

Evaluation of disease management approaches for powdery mildew onCannabis sativaL. (marijuana) plants

Scott

Punja

2020

Canadian Journal of Plant Pathology

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Section: Discussionmentioning

confidence: 75%

Evaluation of disease management approaches for powdery mildew onCannabis sativaL. (marijuana) plants

Scott

Punja

2020

Canadian Journal of Plant Pathology

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“…The management of diseases using resistant cultivars has been very successful in many cases; however, due to pathogen adaptation, the degree of protection achieved with resistant cultivars varies and is not always sufficient as a single-management practice. Some reports noted that resistant cultivars can produce less than susceptible cultivars [17]. Thus, the use of resistant cultivars alone may not be a suitable method to manage powdery mildew and achieve good crop yields.…”

Section: Introductionmentioning

confidence: 99%

“…Biopesticides play a significant role as alternatives for chemical pesticides and as a part of the IPM in controlling the powdery mildews of cucurbits [17], but some of these biopesticides may have negative effects on saprophytic microorganisms [21]. Biofungicides are natural products derived from microorganisms, plants, animals, or minerals that can suppress fungal organisms directly or by stimulating the defense responses of plants.…”

Section: Introductionmentioning

confidence: 99%

Effective Management of Cucumber Powdery Mildew with Essential Oils

et al. 2021

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This research evaluated the efficacy of essential oils in the management of cucumber powdery mildew. Essential oils of lemongrass, lemon, thyme, peppermint, abundance blend, purification blend, and thieves blend were tested in vitro and under greenhouse conditions in two separate experiments. The effects of essential oils were tested against powdery mildew disease at concentrations of 1.0–2.5 mL/L, and the consequent impact of the oils on plant growth was evaluated. Powdery mildew fungus, Podosphaera xanthii, was identified using sequencing of the ITS region. The essential oils significantly reduced disease incidence up to 77.3% compared with the positive control (p < 0.5). Moreover, the essential oils increased the plant length (up to 187 cm), leaf area (up to 27.5 cm2), fresh weight (up to 123 g), dry weight (up to 22.5 g), number of flowers (16.3), and metabolite content compared with the positive control (p < 0.5). Cell membrane injury decreased significantly in the oil-treated pants (p < 0.5), indicating the protective effect of essential oils. This study recommends the application of essential oils in an appropriate dose (2.5 mL/L) to protect cucumber plants against powdery mildew. Overdose of the oils (more than 2.5 mL/L) should be avoided due to adverse effects.

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“…A powdery mildew, also named Oidium (caused by Sphaerotheca fuliginea fungi and Erysiphe cichoracearum fungi), is the disease that causes major crop losses in cucumber and tomato worldwide. 2,5,6 In soilless crops, pathogens can be conserved in the substrates or in the roots that are embedded in the picks from previous crops. 7 Fluopyram 8 (N-{2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]ethyl}-2-(trifluoromethyl)benzamide) is a new systemic fungicidal compound present as the lone active ingredient in the Velum-Prime® plant protection product (PPP), which is very effective against Oidium pest.…”

Section: Introductionmentioning

confidence: 99%

Dissipation and residue determination of fluopyram and its metabolites in greenhouse crops

2020

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BACKGROUND Fluopyram is a pesticide widely used in tomato and cucumber crops cultivation to control fungal diseases that develop especially in environments with moderate temperatures and high humidity, such as in a greenhouse. The pathway of fluopyram dissipation has been monitored in cucumber and cherry tomato under greenhouse conditions. RESULTS In the greenhouse trials, cherry tomato and cucumber were treated by irrigation water with the commercial product at the manufacturer’s recommended dose and double dose. High‐resolution mass spectrometry (HRMS) coupled to ultra‐high‐performance liquid chromatography (UHPLC) has been selected as the technique to obtain the identification of fluopyram and metabolites. The fate of fluopyram in greenhouse tomato and cucumber was investigated over 44 days. The metabolic pathway of fluopyram was: in a first step there was a primary transformation to fluopyram‐7‐hydroxy and fluopyram‐8‐hydroxy, isomeric compounds, and in a second phase to fluopyram‐benzamide and fluopyram‐pyridyl‐carboxylic acid. The behavior of fluopyram does not fit any type of kinetic classical model of degradation. CONCLUSIONS Greenhouse trials revealed that the fluopyram is a very persistent compound, and their terminal residues do not exceed maximum residue level (MRL) at the end of the study. © 2020 Society of Chemical Industry

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Screening of alternative products for integrated pest management of cucurbit powdery mildew in Sweden

Cited by 26 publications

References 27 publications

Evaluation of disease management approaches for powdery mildew onCannabis sativaL. (marijuana) plants

Evaluation of disease management approaches for powdery mildew onCannabis sativaL. (marijuana) plants

Effective Management of Cucumber Powdery Mildew with Essential Oils

Dissipation and residue determination of fluopyram and its metabolites in greenhouse crops

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