Bhendi powdery mildew caused by Erysiphe cichoracearum DC. affects all the stages of the plant growth by causing premature defoliation and resulting 17.0 to 86.6 per cent yield loss in bhendi. Looking into significance of disease various non- systemic, systemic and combi product fungicides were evaluated in vitrofor their efficacy against E. cichoracearum by spore germination technique. Results revealed, among non-systemic, systemic fungicides evaluated, irrespective of concentrations tested, wettable sulphur, difenconazole recorded maximum mean spore germination inhibition of 78.68, 86.06 per cent, respectively and least spore germination inhibition (43.03 %, 68.07 %) was noticed inthiram and carbendazim. Among combi fungicides evaluated, tebuconazole 50 % + trifloxystrobin 25 % recorded maximum mean per cent inhibition of spore germination (88.06 %) and least mean per cent spore germination inhibition (40.49 %) was recorded in copper oxy chloride 14 % + copper hydroxide 14 %.

Powdery mildew, Erysiphe cichoracearum, in vitro, spore germination technique, non- systemic, systemic and combi product fungicides.

Various systemic, non-systemic and combi product fungicides which are found effective under in vitro conditions can be tested for their efficacy in controlling powdery mildew of bhendi under field conditions.

Ashwini R., Amaresh, Y. S., Kulkarni, S., Yenjerappa, S. T., Patil, S. and Hanchinal, S. G. (2021). In vitro Evaluation of various Fungicides Against Spore Germination Inhibition of Erysiphe cichoracearum DC. in bhendi. Biological Forum – An Internatio