SUBSTITUTED 4(3H) QUINAZOLINONES HAVING FUNGICIDAL PROPERTIES, COMPOSITIONS BASED THEREON, AND METHODS OF CONTROLLING POWDERY MILDEW

摘要

FIELD: control of powdery mildew of crops both for prophylaxis and in case of contamination. SUBSTANCE: described are 4(3H)quinazolinones of general formula I: R wherein Q is 0; C3-C10 is R alkyl or cyclopropylmethyl; C3-C10 is R alkyl; R is halogen, and R is hydrogen or halogen provided that when R is cyclopropylmethyl, CH2CH2CH3 is R ; R is 6-8 and is H. Said compounds have fungicidal activity. EFFECT: improved properties of the title compounds and more efficient control method. 1 cl, 4 ex, 5 tbl