SUGAR BEET CONTROL OF CERCOSPORA LEAF SPOT AND RAMULARIA LEAF SPOT USING SOME FUNGICIDES AND ALTERNATIVE PRODUCTS

Abstract

Very common diseases infesting sugar beet crops are cercospora leaf spot and ramularia leaf spot. To the National Institute of Research and Development for Potato and Sugar Beet Brasov, in 2025, using Bukovina hybrid were assessed the intensity and the frequency of attack of the both foliar diseases in an experiment which included different variants sprayed with conventional and unconventional products. The intensity recorded for cercospora leaf spot varied from 7.8 to 0.4 %, after treatments and for ramularia leaf spot varied from 18.2 to 6.1 %. Also the frequency was assessed and the values varied between 8.8 % and 1.1 % for cercospora leaf spot and between between 6.4 % and 2.5 % for ramularia leaf spot.The yield was between a maximum of 69.95 t/ha and a minimum of 53.98 t/ha and the sugar beet content between16.65°S and 12.36 °S