Djelotvornost zaštite jabuke od patogena venturia inaequalis (Cooke) G. winter novijim fungicidima | Venturia inaequalis (Cooke) winter and success of chemical protection apple with new fungicides

Croatian. U tijeku 2004. i 2005. godine vršili smo ispitivanje djelotvornosti novijih fungicida za zaštitu jabuke u Prespanskoj regiji od napada patogena Venturia inaequalis pri preventivnim i kurativnim tretiranjima. Izvršenim pokusima utvrdili smo da je malo bolja djelotvornost postignuta pri primjeni preventivno, pri čemu su dobre rezultate pokazali fungicidi Chorus 75 WG s indeksima djelotvornosti u zaštiti lišća 91,67% u 2004. i 94,60% u 2005. godini dok je pri kurativnoj primjeni indeks djelotvornosti u 2004. godini iznosio 91,37%, a u 2005. godini 93,18%. Veliki indeks ovaj fungicid je pokazao i pri zaštiti plodova. Isto tako dobru djelotvornost pokazali su i fungicidi Score 250 EC, Topas 50 Wp, Clarinet SC,Zato 50 WG. Malo manji indeks djelotvornosti, osobito u kišovitim uvjetima kakvi su vladali u 2004. godini, pokazao je fungicid Merpan 50 WG.

English. In the last thre years the apple scab is a problem in protection of apple. The planth protection from this disease is very specific and there is a need hard working on this problem to be solved esspecialy of using an integral protection, iuing fungicides, e. t. c. In this work are presented results of application with some fungicides with New active ingredients.The best results are achieved with Chorus 75 WG preventive and curative application. Wich had efficacy leavs is 91,67% in 2004 and 94,60% in 2005 preventive application and 91,37%, 93,18 curative application.Protection fruits on this fungicide is had effiacacy of 88,60% in 2004 preventive application and 92,30% in 2005. Curative application is also efficacy 87,76%in 2004 and 95,60% in 2005. An other fungicides Score 250 EC, Topas C 50 WP, Clarinet SC, Zato 50 WG is the most effective fungicide.