EFFICACY OF SOME PLANT EXTRACTS ON THE GROWTH OF STREPTOMYCIN RESISTANT AND SENSITIVE ISOLATES OF ERWINIA AMYLOVORA

In VitroSusceptibility ofErwinia Amylovora(Burrill) Winslowet al.Strain Isolated from Pear to Several Plant Extracts and Different PesticidesIn less than six months after infection,Erwinia amylovoramay completely destroy a pome tree. This paper aims to increase awareness of the potential for developing plant protection strategies based on natural products. Since the damage caused by this bacterium are unrecoverable, we tested in vitro the effectiveness of a several plant extracts such asSalvia officinalis,Thymus serpyllum,Pelargonium odoratissimum,Hedera helix,Ocimum basilicum,Levisticum officinale,Tagetes patula,Galium verumand some pesticide products, on a strain ofErwinia amylovoraisolated from the pomological collection of "Vasile Adamachi" farm, the University of Agricultural Sciences and Veterinary Medicine, Iaşi. The strain was isolated from damaged pear shoots, after performing patogenicity test on immature pear fruits. Following the experiment conducted, copper oxychloride (Alcupral 50 PU) andPelargonium odoratissimumshowed a very good antibacterial activity against EA - A.P. strain.

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FURTHER STUDIES ON PLANT EXTRACTS WITH A RESISTANCE INDUCTION EFFECT AGAINST ERWINIA AMYLOVORA

Acta Horticulturae ◽

10.17660/actahortic.1996.411.73 ◽

1996 ◽

pp. 361-366 ◽

Cited By ~ 8

Author(s):

J. Mosch ◽

W. Zeller ◽

M. Rieck ◽

W. Ullrich

Keyword(s):

Plant Extracts ◽

Erwinia Amylovora ◽

Induction Effect ◽

Resistance Induction

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Non-conventional possibilities of protection of apple and pear against fire blight (Erwinia amylovora)

Acta Agrobotanica ◽

10.5586/aa.2002.028 ◽

2013 ◽

Vol 55 (1) ◽

pp. 299-310

Author(s):

Piotr Sobiczewski ◽

Grzegorz Krupiński ◽

Joanna Puławska

Keyword(s):

Plant Extracts ◽

Fire Blight ◽

Management Practices ◽

Erwinia Amylovora ◽

Control Method ◽

Plant Protection ◽

T4 Lysozyme ◽

Resistance Inducers ◽

Promising Perspective ◽

Thymbra Spicata

Standard program of plant protection against fire blight consists of use of management practices and chemical control method. Recently a new, non-conventional possibilities based on application of biocontrol agents (two biopreparations have been already introduced into practice: Bliteban A506 (Pseudomonas fluorescens) and BlossomBless (Pantoea agglomerans), plant extracts active against Erwinia amylovora (AkseBio containing extracts from Thymbra spicata and Biomit Plussz with extracts from various plant species and microelements) and resistance inducers (Regalis, Bion and plant extracts) are of great interest. Also plant transformation with resistance genes such as: hrpN (harpin), dpo (EPS depolymerase) and lytic protein genes (attacin E, cecropin SB-37, T4 lysozyme) is a promising perspective.

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Study Regarding Effectiveness of Some Plant Extracts and Different Pesticides against an Erwinia Amylovora (Burrill.) Winslow et al. Strain Isolated from Quince

Cercetari Agronomice in Moldova ◽

10.2478/v10298-012-0016-7 ◽

2012 ◽

Vol 45 (2) ◽

pp. 69-74

Author(s):

Irina-Paraschiva Chiriac ◽

E. Ulea

Keyword(s):

Plant Extracts ◽

Erwinia Amylovora ◽

Ocimum Basilicum ◽

Agricultural Science ◽

Salvia Officinalis ◽

Tagetes Patula ◽

Hedera Helix ◽

Good Antibacterial Activity ◽

Thymus Serpyllum ◽

And Control

Study Regarding Effectiveness of Some Plant Extracts and Different Pesticides against anErwinia Amylovora(Burrill.) Winslowet al.Strain Isolated from QuinceThe interest in management fire blight prevention and control increased considerably in last years due to pathogen spread almost throughout the country. The objective of this paper focuses on testing of some plant extracts such asSalvia officinalis, Thymus serpyllum, Pelargonium odoratissimum, Hedera helix, Ocimum basilicum, Levisticum officinale, Tagetes patula, Galium verumand different pesticides against anErwinia amylovorastrain isolated from quince dameged samples. In this study, the biological material was represented by quince shoots, harvested from pomological collection of "Vasile Adamachi" farm, which belongs to University of Agricultural Science and Veterinary Medicine Iaşi. The research were performed in the Phytopathology laboratory. Following the experiment performed note that among the eight plant extracts a good antibacterial activity hasPelargonium odoratissimum, Ocimum basilicumandSalvia officinalisand of the three pesticides, Alcupral 50 PU. Contrary to expectations worst results were obtained after testing Aliette 80 WG andHedera helixproducts. The results were estimated statisticaly, by performing ANOVA test.

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