Abstract

Irrigation water from natural sources can be contaminated by fungi, Oomycota, or bacteria capable of causing serious diseases in seedlings in forest nurseries. Slow sand filtration (SSF) is a cost-effective technique for water decontamination prior to irrigation. The aim of the current study was to assess the effectiveness of SSF as a means of eliminating plant pathogens including Pythium sterilum, Fusarium solani, Xanthomonas campestris, Pseudomonas syringae pv. Syringae and Rhizobium radiobacter from the lake water source used for irrigation. The applied SSF was effective in removing 80–90% of fungal and Oomycota inoculum as well as 70% of the bacteria in the investigated water. Therefore, SSF represents a practical step to lowering the use of pesticides during production of planting stocks in forest nurseries and a valuable element in an integrated plant protection system.

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