Glasilo biljne zaštite, Vol. 16 No. 4, 2016.
Stručni rad
Possibilities and limitations of control of harmful organisms in modern sweet cherry plantations according to integrated principles
Milorad Šubić
; Savjetodavna služba, Podružnica Međimurske županije HR-40000 Čakovec
Sažetak
Sweet cherry (Prunus avium) as fruit species is not very demanding when it comes to control of harmful organisms. In order to control disease agents and pests of sweet cherries, it is important to reduce the possible damages by selecting appropriate varieties before planting. In general, varieties with thicker skin and with firm flesh of the fruit are less susceptible to rot caused by the fungus Monilinia, while the varieties that ripen earlier suffer fewer attacks by cherry fruit fly (Rhagoletis cerasi) (Barić, 2011). According to the principles of integrated production, fruit plantation should be planted on the sites with good air circulation, which results in less moisture retention, thus minimizing the risk of more occurrences of different pathogens of sweet cherries. Continental and Mediterranean cultivation areas of Croatia differ greatly in their cultivation and production conditions. During the two-year period (2014-2015) the health status of sweet cherries in integrated production in the area of the most northern Croatian town Mursko Središće (settlement Hlapičina) was monitored. During the climate changes of the last decade, there were frequent incursions of moist Atlantic air during which, in only a few days, total expected monthly precipitation fell. The emergence and development of plant disease causal agents in these conditions are inevitable, and in addition to the well-known and widespread diseases, for example, wilting of shoots and brown rot of fruit (Monilinia spp.) in 2014, and shot hole disease (Stigmina carpophila) in the 2015 season, some less known diseases of sweet cherries also occur and cause considerable damage. Thus, in the first half of May 2014, and at the end of the same month in 2015, a significant economic damage caused by the bacterium Pseudomonas syringae was recorded on fruits of sweet cherry. During 2015, after the appearance of the first symptoms of a bacteriosis in the plantation, biological preparation based on antagonistic Bacillus subtilis (Serenede WP) was applied.
Ključne riječi
sweet cherry; harmful organisms; Pseudomonas syringae; integrated production
Hrčak ID:
166558
URI
Datum izdavanja:
13.7.2016.
Posjeta: 1.378 *