Effect of Amcocombe and Topaz Pesticide in Fungus Causing Contract Failure and Syphilis of Pumpkin Plant

In this study isolation from squash flowers which showed blossom end rot and male flowers during fall and spring seasons showed the appearance of the following fungi Alternaria alternata, Choanephora cucurbitarum, Fusarium culmorum, Fusarium proliferatum, Fusarium sporotrichioides. A. alternata record the highest isolate percentage 30.86% , 32.82% in fall and spring respectively, followed by F. proliferatum which only isolated from male flowers during fallseasons in addition to F. culmorum, F. sporotrichioides The results also showed that Amkucombe caused significant inhibition in fungi dry weight ,the highest inhibition was in F. sporotrichioides where percentage was 91.66 followed by F. culmorum with 50%. Amkucombe also discourage significantly mycelium growth of F. proliferatum. lowest inhibition percentage in mycelium growth was recorded with A. alternata 4.83%, Treatment with fungicide Topaz caused significant reducing to blossom end rot where inhibition percentage was 46.49% Amkucombe also caused significant increasing on squash fruit number/ plant 11.55 and wet weight. Alternaria alternata, Choanephora cucurbitarum, Fusarium culmorum, Fusarium proliferatum, Fusarium sporotrichioides 32.82 % % 30.86 A.alternata F.proliferatum F.culmorum, F.sporotrichioides 91.66 F. sporotrichioides 50 % F. culmorum 83 % . 4 A. alternata F.proliferatum 46.49 % 11.55