Claims
- 1. A method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount ofa) a pyrimidin-4-one derivative of formula I wherein R1 is hydrogen or halogen, R2 is hydrogen or halogen, and at least one of R1 and R2 is different from hydrogen; R22 is C1-C5alkyl or —CH2-cyclopropyl and R23 is C1-C5alkyl or —CH2-cyclopropyl; in association with an amount ofa pyrrole compound of the formula VI whereinR14 and R15 are independently halo, or together from a perhalomethylendioxo bridge; a phenylamide of the formula VII which synergistically enhances the activity against phytopathogenic diseases.
- 2. A method according to claim 1 wherein the component a) comprises a compound of the formula I wherein R1 is chloro or bromo, R2 is chloro or bromo, R22 is n-propyl, n-butyl, or i-butyl and R23 is n-propyl, n-butyl, or i-butyl.
- 3. A method according to claim 1 wherein the component b) is selected from the group consisting of fenpiclonil and fludioxonil.
- 4. A method according to claim 2 wherein component a) is selected from the group consisting of 6-chloro-3-n-propyl-2-n-proplyoxy-4-(3H)-quinazolinone, 6-bromo-3-n-propyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-chloro-3-n-propyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-bromo-3-n-propyl-2-n-proplyoxy-4-(3H)quinazolinone, 6-chloro-3-n-butyl-2-n-propyloxy-4-(3H)-quinazolinone, 6-bromo-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-chloro-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-bromo-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 6-chloro-3-i-butyl-2-n-proplyoxy-4-(3H)-quinazolinone and 6-bromo-3-i-butyl-2-n-proplyoxy-4-(3H)-quinazolinone.
- 5. A fungicidal composition comprising a fungicidally effective combination of component a) and component b) as defined in claim 1, wherein the components are present in amounts which synergistically enhances the activity against phytopathogenic diseases.
- 6. A composition according to claim 5 wherein the weight ratio of a) to b) is between 100:1 and 1:400.
- 7. A composition according to claim 6 wherein the component a) comprises a compound of the formula I wherein R1 is chloro or bromo, R2 is chloro or bromo, R22 is n-propyl, n-butyl, or i-butyl and R23 is n-propyl, n-butyl, or i-butyl.
- 8. A composition according to claim 7 wherein the component b) is selected from the group consisting of fenpiclonil and fludioxonil.
- 9. A composition according to claim 8 wherein component a) is selected from the group consisting of 6-chloro-3-n-propyl-2-n-proplyoxy-4-(3H)-quinazolinone, 6-bromo-3-n-propyl-2-n-propyloxy-4-(3H)-quinazolinone, 7-chloro-3-n-propyl-2-n-propyloxy-4-(3H)-quinazolinone, 7-bromo-3-n-propyl-2-n-proplyoxy-4-(3H)-quinazolinone, 6-chloro-3-n-butyl-2-n-propyloxy-4-(3H)-quinazolinone, 6-bromo-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-chloro-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 7-bromo-3-n-butyl-2-n-proplyoxy-4-(3H)-quinazolinone, 6-chloro-3-i-butyl-2-n-propyloxy-4-(3H)-quinazolinone and 6-bromo-3-i-butyl-2-n-proplyoxy-4-(3H)-quinazolinone.
- 10. A method of combating phytopathogenic diseases on crop plants which comprises applying to the crop plants or the locus thereof being infested with said phytopathogenic disease an effective amount ofa) a pyrimidin-4-one derivative of formula I wherein R1 is bromine, R2 is hydrogen; R22 is n-propyl; and R23 is n-propyl; in association with an amount ofb) a pyrrole compound of the formula VI wherein R14 and R15 together form a perhalomethylendioxo bridge; which synergistically enhances the activity against phytopathogenic diseases.
Priority Claims (2)
Number |
Date |
Country |
Kind |
9725446 |
Dec 1997 |
GB |
|
9800195 |
Jan 1998 |
GB |
|
Parent Case Info
This application is a 371 of PCT/EP98/07676, filed Nov. 27, 1998.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/EP98/07676 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO99/27789 |
6/10/1999 |
WO |
A |
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3755582 |
Bullock |
Aug 1973 |
A |
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Date |
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Nov 1994 |
WO |
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Jan 1997 |
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Aug 1998 |
WO |