The present Invention relates to Heterocyclic compounds of formula I are microbicidal activity, in particular, fungicidal activity, as well as Methods of using the compounds of formula I for controlling Microbes: where a is X - C (r10r11) - C (= o) - X - C (- C (r12r13) x = S) -, - Or - C (= o) -, X - or - C (= o) - (R14), x n, X C (= o) - N (R15) - C (= o) -, - C (X r16r17) - SO2 - X - n = C (R30) -,In each case x indicates the link is connected to R1, T or n is cr18； y1, y2, y3 and Y4 are independently cr19 or N； Q is o or s； n is 1 or 2； p is 1 or 2, provided that when n is 2, p 1； r1 R2 R3, R4, R5, R6, R7, R10, R11, R12, R13, R16, R17 and R18, R19, R30 are each independently HID R u00f3geno, halogen c1-c4 alkyl, cyano, or haloalquilo c1-c4； R8,R14 and R15 are each independently Hydrogen or c1-c4 alkyl, phenyl or benzyl Yr9 is, a Group (a): (a) where the phenyl, Benzyl Group (a) are each optionally substituted with 1 to 3 substituents selected regardless of c1-c4 alkyl, haloalquilo c1-c4, hal u00f3gen Or cyano, amino, Hydroxy and； or one of its Salts and n-oxides.Винахід стосується гетероциклічних сполук формули І, які мають мікробіоцидну активність, зокрема, фунгіцидну активність, а також способів застосування сполуки формули І для боротьби з мікроорганізмами.(I)
