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Proučevanje učinkovitosti pripravkov Deffort in Matrifruit za zatiranje navadne hruševe bolšice (Cacopsylla pyri [L.]) na sortah Viljamovka in Boskova steklenka
Turk, Janja (Author), Trdan, Stanislav (Mentor) More about this mentor... This link opens in a new window, Hudina, Metka (Co-mentor)

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Abstract
Navadna hruševa bolšica (Cacopsylla pyri) je eden najpomembnejših škodljivcev hrušk v intenzivnih nasadih. Odrasli osebki in ličinke s sesanjem povzročajo odpadanje cvetov in plodov ter zavirajo rast poganjkov. Zaradi omejene izbire insekticidov in pojava odpornosti škodljivca nanje se v integrirano pridelavo uvaja alternativne pripravke. Ugotavljali smo ali pripravka Matrifruit in Deffort, ki sta foliarni gnojili, vplivata na zmanjšanje populacije ličink navadne hruševe bolšice in ali vplivata na količino in kakovost pridelka. V poskus smo vključili drevesa hruške sort 'Viljamovka' in 'Boskova steklenka', ki smo jih tretirali s pripravkoma Matrifruit in Deffort, in jih primerjali s kontrolo, kjer teh dveh pripravkov nismo uporabili. Pri obeh obravnavanjih smo zatirali škodljivce po načelih integriranega varstva. Rezultati naše raziskave so pokazali, da pripravka Matrifruit in Deffort ne vplivata na večje število plodov na drevo in ne vplivata na njihovo boljšo kakovost. Pri sorti 'Boskova steklenka' ni bilo statistično značilnih razlik v kakovosti plodov med kontrolo in programom. Plodovi sorte 'Viljamovka' so imeli v programu manjšo trdoto mesa in vsebnost topne suhe snovi. Zavrnili smo hipotezo o manjši številčnosti ličink hruševe bolšice na drevesih v programu, saj ni bilo bistvene razlike v primerjavi s kontrolo. Pripravka Deffort in Matrifuit sta vplivala na zmanjšanje števila navadne hruševe bolšice (Cacopsylla pyri) enako kot škropljenje po načelih integrirane pridelave. Vendar pa smo pri kontrolnem obravnavanju morali navadno hruševo bolšico z insekticidi zatirati sedemkrat, v programu, kjer smo uporabili pripravka Matrifruit in Deffort pa le štirikrat. Z uporabo teh dveh pripravkov smo zmanjšali uporabo insekticidov, vendar pa je ta način zatiranja dražji.

Language:Slovenian
Keywords:hruška, Pyrus communis, navadna hruševa bolšica, Cacopsylla pyri, Matrifruit, Deffort
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2018
Publisher:[J. Turk]
UDC:634.13:632.7:631.147:632.937(043.2)
COBISS.SI-ID:8978553 This link opens in a new window
Views:704
Downloads:248
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Secondary language

Language:English
Title:Study on effectivness of deffort and matrifruit products for pear psylla (Cacopsylla pyri [L.]) control in cultivars 'Williams' and 'Bosc'
Abstract:
Pear psylla (Cacopsylla pyri) is one of the most important insect pests in pear orchards. The sucking insect causes the blossoms and fruit to drop and reduces the shoot growth. Due to the limited availability of the pesticides and the occurrence of pest resistance, we have to use alternative products. In the thesis, we tried to establish whether the Matrifruit and Deffort products, which are foliar nutrients, decrease the number of nymphs and whether they affect the quality and amount of yield. The experiment included the 'Williams' and 'Bosc' pear cultivars, which we had treated with Deffort and Matrifruit and then compared with a control measurement, in which we did not use the two products. During both treatments, we used the products for integrated protection as well. The results of our research have shown that the Matrifruit and Deffort plant extracts did not affect the quality and the number of fruit per tree. There was no statistically significant difference in fruit quality in 'Bosc' pear cultivar between treatments. In the program treatment of 'Williams' cultivar, the fruits were less firm and had a lower content of soluble solids. We have rejected the hypothesis on the lower abundance of psylla nymphs on the trees in a program treatment, because there was no significant difference in comparison to the control treatment. The Deffort and Matrifuit plant extracts have the same impact on the number of pear psylla as the integrated pest management in controlled observation has. However, in the control treatment the insecticides against pear psylla Cacopsylla pyri had to be used seven times, whereas in the program with the Matrifruit and Deffort products, the insecticides were used only four times. With these products, the use of insecticides can be reduced; however, this method of pest suppression is more expensive.

Keywords:pear, Pyrus communis, pear sucker, Cacopsylla pyri, Matrifruit, Deffort

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