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Field experiments were carried out in 2006–2008. Faba bean plants were heavily infested with Aphis fabae, resulting in high loses in yield. Application of natural pyrethrin only slightly reduced the number of this pest. Effective control was observed when synthetic insecticide was applied. A development of an effective control method is very purposeful.
The aim of field studies carried out in 2005–2006 yas to evaluate the effect of biopreparations Spruzit 04 EC and spore suspension of the fungus Beauveria bassiana and insecticides Prestige 290 FS and Regent 200 SC on volume index LAI, leaf mass and chemical composition of tubers. The greatest impact on the size of morphological features of plants, dry matter content, starch, protein, nitrate, and...
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