Plant protecting and regulating compositions – Plant growth regulating compositions – Micro-organisms or from micro-organisms
Reexamination Certificate
1999-04-14
2001-04-24
Dees, Jose′ G. (Department: 1616)
Plant protecting and regulating compositions
Plant growth regulating compositions
Micro-organisms or from micro-organisms
Reexamination Certificate
active
06221808
ABSTRACT:
This appln is a 371 of PCT/EP97/05534 filed Oct. 8, 1997.
The present invention relates to a process for controlling harmful fungi in crop plants having modified pathogen resistance against, for example, other harmful fungi.
Methods for controlling harmful fungi in crop plants by using fungicidally active compounds are known per se and are disclosed in the literature.
Also known are crop plants whose pathogen resistance to certain harmful fungi which have a particularly adverse effect on the respective crop plant is modified or increased as compared to the natural level. This may be achieved, for example, by selective breeding or by genetic engineering in that certain DNA sequences which cause increased pathogen resistance when they are functionally expressed in the plant are introduced into the crop plant.
However, owing to the large number of damage-causing mechanisms of harmful fungi, it is often only possible to increase the resistance to a small group of harmful fungi. In addition, plants which are modified in this way often have other disadvantages, for example a lower harvest yield, a higher susceptibility to other harmful fungi, etc.
It is an object of the present invention to provide a method for controlling harmful fungi which allows the control of a wide range of harmful fungi without adversely affecting the yield characteristics of the plants.
We have found that this object is achieved by the method mentioned at the outset, wherein crop plants having modified pathogen resistance to harmful fungi are treated with an active compound of the formula I (IA or IB).
Active compounds of the formula IA or IB are known per se and referred to in the literature as the class of the “strobilurins”, in some instances also as “&bgr;-methoxyacrylates” (cf. H. Sauter et al., “Mitochondrail [sic] respiration as a target for antifungals: lessons from research in strobilurins” in “Antifungal agents—Discovery and mode of action”, G. K. Dixon, L. G. Copping and D. W. Holloman (Editors), BIOS Scientific Publishers, Oxford 1995, p. 175 ff.).
In particular, representatives of active compounds of the formula I (or IA and IB) having fungicidal and in part also bioregulatory activity are described in the following publications:
EP-A 178 826, EP-A 203 606, EP-A 203 608, EP-A 206 523, EP-A 212 859, EP-A 226 917, EP-A 226 974, EP-A 242 070, EP-A 242 081, EP-A 243 012, EP-A 243 014, EP-A 251 082, EP-A 253 213, EP-A 254 426, EP-A 256 667, EP-A 260 794, EP-A 260 832, EP-A 267 734, EP-A 273 572, EP-A 274 825, EP-A 278 595, EP-A 280 185, EP-A 291 196, EP-A 299 694, EP-A 307 101, EP-A 307 103, EP-A 310 954, EP-A 312 221, EP-A 312 243, EP-A 329 011, EP-A 331 966, EP-A 335 519, EP-A 336 211, EP-A 337 211, EP-A 341 845, EP-A 350 691, EP-A 354 571, EP-A 363 818, EP-A 370 629, EP-A 373 775, EP-A 374 811, EP-A 378 308, EP-A 378 755, EP-A 379 098, EP-A 382 375, EP-A 383 117, EP-A 384 211, EP-A 385 224, EP-A 385 357, EP-A 386 561, EP-A 386 681, EP-A 389 901, EP-A 391 451, EP-A 393 428, EP-A 393 861, EP-A 398 692, EP-A 400 417, EP-A 402 246, EP-A 405 782, EP-A 407 873, EP-A 409 369, EP-A 414 153, EP-A 416 746, EP-A 420 091, EP-A 422 597, EP-A 426 460, EP-A 429 968, EP-A 430 471, EP-A 433 233, EP-A 433 899, EP-A 439 785, EP-A 459 285, EP-A 460 575, EP-A 463 488, EP-A 463 513, EP-A 464 381, EP-A 468 684, EP-A 468 695, EP-A 468 775, EP-A 471 261, EP-A 472 224, EP-A 472 300, EP-A 474 042, EP-A 475 158, EP-A 477 631, EP-A 480 795, EP-A 483 851, EP-A 483 985, EP-A 487 409, EP-A 493 711, EP-A 498 188, EP-A 498 396, EP-A 499 823, EP-A 503 436, EP-A 508 901, EP-A 509 857, EP-A 513 580, EP-A 515 901, EP-A 517 301, EP-A 528 245, EP-A 532 022, EP-A 532 126, EP-A 532 127, EP-A 535 980, EP-A 538 097, EP-A 544 587, EP-A 546 387, EP-A 548 650, EP-A 564 928, EP-A 566 455, EP-A 567 828, EP-A 571 326, EP-A 579 071, EP-A 579 124, EP-A 579 908, EP-A 581 095, EP-A 582 902, EP-A 582 925, EP-A 583 806, EP-A 584 625, EP-A 585 751, EP-A 590 610, EP-A 596 254, WO-A 90/07,493, WO-A 92/13,830, WO-A 92/18,487, WO-A 92/18,494, WO-A 92/21,653, WO-A 93/07,116, WO-A 93/08,180, WO-A 93/08,183, WO-A 93/15,046, WO-A 93/16,986, WO-A 94/00,436, WO-A 94/05,626, WO-A 94/08,948, WO-A 94/08,968, WO-A 94/10,159, WO-A 94/11,334, JP-A 02/121,970, JP-A 04/182,461, JP-A 05/201,946, U.S. Pat. No. 5,335,283, JP-A 05/255,012, JP-A 05/294,948, JP-A 06/025,133, JP-A 06/025,142, JP-A 06/056,756, FR-A 2 670 781, GB-A 2 210 041, GB-A 2 218 702, GB-A 2 238 308, GB-A 2 249 092, GB-A 2 253 624, GB-A 2 255 092, WO-A 90/10006, WO-A 94/22812, EP-A-627 411, EP-A 647 631, EP-A 741 698, EP-A 738 259, EP-A 741 694, EP-A 673 923.
Suitable for the method according to the invention are generally all active compounds of the formulae IA and IB
described in the publications mentioned at the outset in which R″ is one of the following groups:
aryloxy with or without substitution, hetaryloxy with or without substitution, aryloxymethylene with or without substitution, hetaryloxymethylene with or without substitution, arylethenylene with or without substitution, and hetarylethenylene with or without substitution, or a group
R
&agr;
R
&bgr;
C═NOCH
2
— or R
&ggr;
ON═CR
&dgr;
CR
&egr;
═NOCH
2
where the radicals R
&agr;
, R
&bgr;
, R
&ggr;
, R
&dgr;
and R
&egr;
in general and in particular have the meanings described in the following publications:
EP-A 370 629, EP-A 414 153, EP-A 426 460, EP-A 460 575, EP-A 463 488, EP-A 472 300, EP-A 498 188, EP-A 498 396, EP-A 515 901, EP-A 585 751, WO-A 90/07,493, WO-A 92/13,830, WO-A 92/18,487, WO-A 92/18,494, WO-A 93/15,046, WO-A 93/16,986, WO-A 94/08,948, WO-A 94/08,968, JP-A 05/201,946, JP-A 05/255,012, JP-A 05/294,948, JP-A 06/025,133, JP-A 061025,142, EP-A 738 259, EP-A 741 694, EP-A 738 259 and WO-A 95/21154,
particularly preferred radicals “aryloxy with or without substitution, hetaryloxy with or without substitution” in general and in particular have the meanings described in the following publications:
EP-A 178 826, EP-A 242 070, EP-A 242 081, EP-A 253 213, EP-A 254 426, EP-A 256 667, EP-A 260 794, EP-A 280 185, EP-A 307 103, EP-A 341 845, EP-A 382 375, EP-A 393 861, EP-A 398 692, EP-A 405 782, EP-A 430 471, EP-A 468 684, EP-A 468 695, EP-A 477 631, EP-A 483 985, EP-A 498 188, EP-A 513 580, EP-A515 901, WO-A 93115,046, WO-A 94110,159, GB-A 2 253 624 and JP-A 041182,461;
particularly preferred radicals “aryloxymethylene with or without substitution, hetaryloxymethylene with or without substitution” in general and in particular have the meanings described in the following publications:
EP-A 178 826, EP-A 226 917, EP-A 253 213, EP-A 254 426, EP-A 278 595, EP-A 280 185, EP-A 299 694, EP-A 335 519, EP-A 350 691, EP-A 363 818, EP-A 373 775, EP-A 378 308, EP-A 385 224, EP-A 386 561, EP-A 398 692, EP-A 400 417, EP-A 407 873, EP-A 472 224, EP-A 477 631, EP-A 498 188, EP-A 498 396, EP-A 513 580, EP-A 515 901, EP-A 579 124, WO-A 93/08,180, WO-A 93/15,046, WO-A 94/00,436, JP-A 04/182,461, WO-A 90/10006, EP-A 673 923 and EP-A 758 322;
particularly preferred radicals “arylethenylene, with or without substitution, hetarylethenylene with or without substitution” in general and in particular have the meanings described in the following publications:
EP-A 178 826, EP-A 203 606, EP-A 253 213, EP-A 254 426, EP-A 280 185, EP-A 378 755, EP-A 398 692, EP-A 402 246, EP-A 474 042, EP-A 475 158, EP-A 477 631, EP-A 487 409, EP-A 498 188, EP-A 498 396, EP-A 513 580, EP-A 515 901, EP-A 528 245, EP-A 544 587, WO-A 93/15,046, WO-A 94/11,334 and FR-A 2 670 781 and EP-A 691 332.
Particularly preferred active compounds of the formula IA in which R′ is —C[CO
2
CH
3
]═CHOCH
3
in general and in particular correspond to the compounds described in the following publications:
EP-A 178 826, EP-A 203 606, EP-A 226 917, EP-A 242 070, EP-A 242 081, EP-A 256 667, EP-A 260 794, EP-A 278 595, EP-A 299 694, EP-A 307 103, EP-A 335 519, EP-A 341 845, EP-A 350 691, EP-A 370 629, EP-A 373 775, EP-A 378 308, EP-A 378 755, EP-A 382 375, EP-A 385 224, EP-A 386 561, EP-A 393 861, EP-A 402 246, EP-A 405 782, EP-A 407 873, EP-A 414 153, EP-A 42
Ammermann Eberhard
Lorenz Gisela
Sauter Hubert
Schmidt Ralf-Michael
BASF - Aktiengesellschaft
Dees Jose′ G.
Keil & Weinkauf
Pryor Alton
LandOfFree
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