Abstract: Snails and slugs are controlled by a method in which the plants to be protected from molluscs, or the environment of the said plants, are or is treated with 2-tert-butyl-4-chloro-5-(4-tert-butylbenzylthio)-3(2H)-pyridazinone I ##STR1## Snail and slug baits or seed dressings contain the active ingredient I.

Abstract: Cyclopropanecarboxamides of the general formula I ##STR1## where R is C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, C.sub.2 -C.sub.12 -alkynyl, C.sub.1 -C.sub.12 -haloalkyl, C.sub.2 -C.sub.12 -haloalkenyl, C.sub.2 -C.sub.12 -haloalkynyl, C.sub.3 -C.sub.12 -alkoxyalkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.4 -C.sub.12 -cycloalkylalkyl, C.sub.3 -C.sub.8 -halocycloalkyl, C.sub.4 -C.sub.12 -halocycloalkylalhaloalkyl C.sub.4 -C.sub.12 -cycloalkylhaloalkyl or C.sub.4 -C.sub.12 -halocycloalkylhaloalkyl and X is oxygen or sulfur.The present invention furthermore relates to the preparation of the compounds I, pesticides which contain the compounds I, and a method for controlling pests.

Abstract: Novel (p-phenoxyphenoxy)-methyl-five-membered heeroaromatic radicals of the formula ##STR1## where the substituents have the following meanings: R.sup.1, R.sup.2, R.sup.3 hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.3 -C.sub.10 -cycloalkyl, nitro or cyano,R.sup.4 hydrogen or C.sub.1 -C.sub.4 -alkyl, and a five-membered heteroaromatic ring, and their use for combating pests.

Abstract: Synthetically prepared periplanone A of the formula I ##STR1## its preparation and its use for controlling cockroaches.

Abstract: 2-tert-butyl-5-isoxazolylmethylthio-3(2H)-pyridazin-3-one derivatives of the general formula ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, C.sub.1 -C.sub.4 -haloalkenyl, C.sub.2 -C.sub.8 -alkoxyalkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.2 -C.sub.5 -alkoxycarbonyl, aryl or C.sub.7 -C.sub.20 -aralkyl, or aryl which is monosubstituted, disubstituted or trisubstituted by halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -haloalkoxy, phenyl, phenoxy or cyano and/or monosubstituted or disubstituted by nitro or C.sub.7 -C.sub.20 -aralkyl substituted by the said substituents in the aryl moiety, R.sup.3 is hydrogen, halogen, C.sub.1 -C.sub.8 -alkyl or C.sub.2 -C.sub.8 -alkenyl and X is chlorine or bromine, their preparation and their use for controlling pests.

Abstract: An agent for defoliating plants, which contains a 1,3,4-thiadiazol-2-ylurea of the formula I ##STR1## where R.sup.1 is hydrogen or methyl, andR.sup.2 is C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.3 -C.sub.6 -alknyl or phenyl which is unsubstituted or substituted by one or 2 chlorine or fluorine atoms, methyl groups, trifluoromethyl groups or methoxy groups, a process for the preparation of the agent, and its use in a method for defoliating plants.

Abstract: Bisthiophosphates of the general formula ##STR1## where R.sup.1 is ethyl or isopropyl and R.sup.2 is branched or straight-chain C.sub.1 -C.sub.4 -alkyl, and their use for combating pests.

Abstract: Propargyl furan- and thiophenecarboxylates of the formulae Ia and Ib ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each hydrogen, chlorine, bromine, nitro, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.2 -C.sub.4 -haloalkenyl, or phenyl which is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 -alkyl, or C.sub.1 -C.sub.4 -alkoxy, X is oxygen or sulfur, n is the integer 0 or 1, and, if X is sulfur, R.sup.1, R.sup.2 and R.sup.3 may furthermore be fluorine, cyano, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.2 -C.sub.4 -alkenyloxy or C.sub.2 -C.sub.4 -haloalkenyloxy, processes for their manufacture, and their use for combating pests.

Abstract: N-Benzoyl-N'-(2,3-dichloro-4-phenoxy)-phenylureas of the general formula I ##STR1## where R.sup.1 is halogen, R.sup.2 is hydrogen or halogen, R.sup.3 is halogen or C.sub.1 -C.sub.4 -haloalkoxy, and R.sup.4 is hydrogen or halogen, pesticides containing compounds I as active ingredients, and methods of combating pests.

Abstract: 3,4-dihydro-2H-pyrans of the formula I ##STR1## where R.sup.1 is C.sub.4 -C.sub.20 -alkyl, C.sub.4 -C.sub.20 -alkoxyalkyl, aryl or C.sub.7 -C.sub.20 -arylalkyl, or is aryl or C.sub.7 -C.sub.20 -arylalkyl which bears from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.3 is aryl, or aryl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -haloalkoxy, or the radical ##STR2## where R.sup.4, R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 -alkyl, R.sup.7 is phenyl or benzoyl, or phenyl or benzoyl bearing from one to three substituents selected from the group consisting of halogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -haloalkyl, C.sub.1 -C.sub.8 -alkoxy and C.sub.1 -C.sub.

Abstract: Carboxamides of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.3 -C.sub.10 -cycloalkyenyl or C.sub.4 -C.sub.10 -cycloalkenylalkyl, and R.sup.2 and R.sup.3 are each hydrogen, halogen, C.sub.1 -C.sub.3 -alkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.3 -haloalkyl. C.sub.1 -C.sub.3 -haloalkoxy or methylthio, and their use for combating pests.

Abstract: O-(O-ethyl-S-alkylphosphoryl)-O-(carbamoyl)-pyrocatechol derivatives of the formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, R.sup.2 is hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkyl, and X is oxygen or sulfur, and methods of combating pests with effective amounts of I.

Abstract: Cinnamates of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meanings stated in the description, processes for their preparation, and their use for pest control.

Abstract: Propargyl esters of the formula I ##STR1## where R.sup.1 is OC.sub.n H.sub.2n+1 (n=1 or 2), OCF.sub.3, OCF.sub.2 CHF.sub.2 or F and R.sup.2 is H, or R.sup.1 and R.sup.2 together form --O(CH.sub.2).sub.m O-- (m=1 or 2), a process for their preparation, and their use for controlling pests.