Potential of basic substances in plant protection to reduce Podosphaera pannosa in cut roses

Wulf, Florian; Podhorna, Jana; Bandte, Martina; Rybak, Malgorzata; Büttner, Carmen

doi:10.1007/s41348-022-00658-9

Cited by 3 publications

(2 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the authorisation process, no data for efficacy are demanded (Feldmann and Carstensen, 2018). Different basic substances, for example Equisetum arvense, lecithine, hydrogen peroxide or chitosan, are already shown to be promising for implementation in plant protection strategies (Copes, 2009;El Hadrami et al, 2010;Jolly et al, 2018;Trebbi et al, 2021;Wulf et al, 2022Wulf et al, , 2023. For other basic substances such as Urtica sp., only a meagre amount of data are available.…”

Section: Florian Wulfmentioning

confidence: 99%

The use of stinging nettle tea (Urtica sp.) to control Aulacorthum solani and Macrosiphum euphorbiae on Ranunculus asiaticus

Wulf,

Podhorna,

Bandte

et al. 2023

Folia Horticulturae

Self Cite

View full text Add to dashboard Cite

Natural and environmental-friendly approaches to control pests and diseases in horticultural production systems are showing an increasing trend. Biological alternatives, such as botanical extracts and basic substances, show promise in the reduction of the necessity for conventional plant protectants. In ornamentals, less is known about the usage, behaviour and potential of botanicals and basic substances for plant protection. In two trials, we investigated the effect of a weekly foliar spray of an aqueous extract of nettle (Urtica sp.; dried material 15 g · L–1) on two aphids, Macrosiphum euphorbiae and Aulacorthum solani. Experiments were conducted in the greenhouse with Ranunculus asiaticus as hostplant. The Urtica tea and azadirachtin (NeemAzal-T/S) as a standard used in common horticultural production were compared with the water control. Both previously infested and noninfested plants were built up to examine the effect on aphid population growth and migration. As a result, we showed that both treatments, Urtica tea and azadirachtin, reduce the aphid density significantly in comparison with the water control, although the effect of the Urtica tea was not as substantial as that of azadirachtin. Contrarily, treatments could not prevent aphid migration on previously noninfested plants. The study demonstrates that the basic substance Urtica tea can be suitable for the reduction of aphid pests in ornamental plant production, and thus, reduce the amount of synthetic plant protectants in horticulture.

show abstract

Section: Florian Wulfmentioning

confidence: 99%

The use of stinging nettle tea (Urtica sp.) to control Aulacorthum solani and Macrosiphum euphorbiae on Ranunculus asiaticus

Wulf,

Podhorna,

Bandte

et al. 2023

Folia Horticulturae

Self Cite

View full text Add to dashboard Cite

show abstract

“…The presence of specific molecules such as luciferin (Arzumanian, 2022), but also the vehicle of microorganisms, as well as the effects of pH are relatively described without one or the other of these tracks being preponderant or decisive or additive or even synergistic. Recently, these dairy products show renewed interest in plant protection, as co-formulant (Riseh 2023;Hussam, 2023) or directly as PPP (Wulf, 2023).…”

Section: Introductionmentioning

confidence: 99%

Whey and Cow Milk: Dairy Products Useful for Crop Protection

Gonson,

Taylor,

Marchand

2024

IJBSM

View full text Add to dashboard Cite

The study was conducted during spring and summer 2022 at Mare Savin garden centre (Trappes, France) to confirm plant protection properties of some dairy products. Indeed, for crop protection, the search for new non-chemical fungicides useful, durable, affordable and efficient as active substances (a.s.). These suitable products, especially from natural origin called BioControl Agents (BCA) are acceptable to civil society (i.e., low-concern profile, and absence of residues of concern) are of paramount importance as the number of chemical solutions has drastically decreased in recent years. When natural substances from the plant origin are plethoric in literature and some are approved as Plant Protection Product (PPP), natural substances from the animal origin repertoire are sparsely represented in PPP a.s., but lately a few substances have obtained a European Union (EU) active substance approval (i.e. sheep fat, blood meal, fish oil, chitosan hydrochloride from crab shell). Dairy products may also exhibit crop protection properties like whey and cow milk are two of these new BCAs. The corresponding applications under EU PPP regulation (EC) n° 1107/2009 were granted as basic substance according Article 23, respectively in 2016 for whey and 2020 for cow milk for protection of vegetable against mildew and agricultural tools disinfection. These basic substances are approved for an unlimited period of time with no Market Authorisation, for all Europe without zone or Member State consideration, and with no Maximum Residue Limits (MRL). Later, an extension of use for vineyards protection against diseases was granted for whey in 2021.

show abstract

Studies on the potential of the basic substance chitosan in managing Podosphaera pannosa on cutting roses and Erysiphe polygoni on French hydrangea

Wulf

Podhorna

Rybak³

et al. 2023

J Plant Dis Prot

View full text Add to dashboard Cite

Horticultural production systems have to move forwards to an environment-friendly and sustainable plant production. Basic substances can be added to reduce the use of synthetic plant protectant in conventional plant protection strategies. Regarding the protection of ornamental plants, less is known about the usage and behaviour of these alternative strategies and components. In our study, an infection of Podosphaera pannosa and Erysiphe polygoni in two different cultivars of cutting roses and one cultivar of French hydrangea was investigated. We studied the effect of a weekly foliar treatment of the basic substance chitosan (0.05 g/m2) compared to a water control and potassium hydrogen carbonate (VitiSan, Biofa GmbH, Münsing, Germany) in both production systems. As a result, in cutting roses as well as in French hydrangea, we found a significantly decreased infected leaf area following the use of chitosan and VitiSan compared to the water control. In both treatments, we found a stronger effect in French hydrangea, compared to roses. Results also indicate that the basic substance chitosan has to be used at a low pathogen level. We present a promising approach to reduce conventional plant protectants in ornamental plant production.

show abstract

Potential of basic substances in plant protection to reduce Podosphaera pannosa in cut roses

Cited by 3 publications

References 46 publications

The use of stinging nettle tea (Urtica sp.) to control Aulacorthum solani and Macrosiphum euphorbiae on Ranunculus asiaticus

The use of stinging nettle tea (Urtica sp.) to control Aulacorthum solani and Macrosiphum euphorbiae on Ranunculus asiaticus

Whey and Cow Milk: Dairy Products Useful for Crop Protection

Studies on the potential of the basic substance chitosan in managing Podosphaera pannosa on cutting roses and Erysiphe polygoni on French hydrangea

Contact Info

Product

Resources

About