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Glasnik Zaštite Bilja, Vol. 46. No. 3., 2023.

Preliminary communication

https://doi.org/10.31727/gzb.46.3.10

Preliminary results of the biostimulators impact on the reduced number of the pear psylla (Cacopsylla pyri l.) population

Vesna Tomaš orcid id orcid.org/0000-0001-9533-7674 ; Poljoprivredni institut u Osijeku, Osijek, Hrvatska
Ines Mihaljević ; Poljoprivredni institut u Osijeku, Osijek, Hrvatska
Marija Viljevac-Vuletić orcid id orcid.org/0000-0001-8792-641X ; Poljoprivredni institut u Osijeku, Osijek, Hrvatska
Dominik Vuković ; Poljoprivredni institut u Osijeku, Osijek, Hrvatska

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Abstract

Cacopsylla pyri L. (Hemiptera: Psyllidae) is one of the most important economic pests of pear. With regard to new guidelines on the sustainable use of pesticides and reducing the risk of negative effects of pesticides, new, environmentally friendly solutions are constantly being found in plant protection. The aim of this research was to determine the impact of biostimulators in pear production on increasing resistance to the harmful pear psylla population. The research was set up in 2021 in an experimental pear plantation of the Williams/ BA 29 variety of the Agricultural Institute Osijek in two treatments (T1- Katon XT + Bombardier, T2- control treatment - water). Regular monitoring of the abundance of all developmental stages of the pear psylla was done on marked one-year-old shoots of the experimental tree in three repetitions. The expected result of the one-year study was confirmed, that the use of a combination of biostimulators gave a statistically significant lower number of all developmental stages compared to the control treatment.

Keywords

pear; Cacopsylla pyri; biostimulators; resistance

Hrčak ID:

300534

URI

https://hrcak.srce.hr/300534

Publication date:

21.4.2023.

Article data in other languages: croatian

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License (open-access, http://creativecommons.org/licenses/by/2.5/):

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

License (open-access):

Ovo je članak s otvorenim pristupom distribuiran pod uvjetima licence Creative Commons Attribution, koji dopušta neograničenu upotrebu, distribuciju i reprodukciju u bilo kojem mediju, pod uvjetom da se izvorno djelo pravilno citira.

License (open-access):

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Date received: 21 February 2023

Date accepted: 4 April 2023

Publication date: 21 April 2023

Volume: 46

Issue: 3

Pages: 94-98

DOI: 10.31727/gzb.46.3.10

Article Information (continued)

Categories:

Subject: Prethodno priopćenje

Categories:

Subject: Rapid-communication

Keywords:

Keyword: kruška

Keyword: Cacopsylla pyri

Keyword: biostimulatori

Keyword: otpornost

Keywords:

Keyword: pear

Keyword: Cacopsylla pyri

Keyword: biostimulators

Keyword: resistance

Preliminarni rezultati utjecaja biostimulatora na smanjenu brojnost populacije obične kruškine buhe (Cacopsylla pyri l.)

Translated Title (en): Preliminary results of the biostimulators impact on the reduced number of the pear psylla (Cacopsylla pyri l.) population

Vesna Tomaš[1]

Email: vesna.tomas@poljinos.hr

Ines Mihaljević[1]

Marija Viljevac-Vuletić[1]

Dominik Vuković[1]

 

[1] Poljoprivredni institut u Osijeku, Osijek, Hrvatska

Abstract

Cacopsylla pyri L. (Hemiptera: Psyllidae) je jedan od najvažnijih gospodarskih štetnika kruške. S obzirom na nove smjernice o održivoj uporabi pesticida i smanjenja rizika od negativnih učinaka pesticida stalno se iznalaze nova, ekološki prihvatljiva rješenja u zaštiti bilja. Cilj ovog istraživanja je bio utvrditi utjecaj biostimulatora na povećanje otpornosti kruške na intenzitet napada kruškine buhe. Istraživanje je obavljeno 2021. godine u pokusnom nasadu kruške, sorte Williams/BA 29, Poljoprivrednog instituta Osijek. U svrhu istraživanja obavljena su dva tretmana (T1 - Katon XT + Bombardier, T2 - kontrolni tretman - voda). Redovito praćenje brojnosti svih razvojnih stadija kruškine buhe provedeno je na prethodno obilježenim jednogodišnjim izbojcima pokusnog stabla u tri ponavljanja. Potvrđen je očekivani rezultat jednogodišnjeg istraživanja da je uporaba kombinacije biostimulatora dala statistički značajnu manju brojnost svih razvojnih stadija u odnosu na kontrolni tretman.

Translated Abstract

Cacopsylla pyri L. (Hemiptera: Psyllidae) is one of the most important economic pests of pear. With regard to new guidelines on the sustainable use of pesticides and reducing the risk of negative effects of pesticides, new, environmentally friendly solutions are constantly being found in plant protection. The aim of this research was to determine the impact of biostimulators in pear production on increasing resistance to the harmful pear psylla population. The research was set up in 2021 in an experimental pear plantation of the Williams/ BA 29 variety of the Agricultural Institute Osijek in two treatments (T1- Katon XT + Bombardier, T2- control treatment - water). Regular monitoring of the abundance of all developmental stages of the pear psylla was done on marked one-year-old shoots of the experimental tree in three repetitions. The expected result of the one-year study was confirmed, that the use of a combination of biostimulators gave a statistically significant lower number of all developmental stages compared to the control treatment.

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