Abstract: Pesticidal 3-substituted 1-nitro-2-imino-1,3-diazacycloalkanes of the formula ##STR1## in which n stands for the numbers 0 or 1,R.sup.1 stands for a five- or six-membered heterocyclic group which contains 1, 2, 3 or 4 nitrogen atoms and/or one or two oxygen atoms or sulphur atoms as hetero atom ring members--the number of the hetero atoms being 1, 2, 3 or 4--and which is optionally substituted by halogen, cyano, nitro, alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, alkinyl, alkoxy, halogenoalkoxy, alkenyloxy, halogenoalkenyloxy, alkinyloxy, alkylthio, halogenoalkylthio, alkenylthio, halogenoalkenylthio, alkinylthio, alkylsulphinyl, halogenoalkylsulphinyl, alkylsulphonyl, halogenoalkylsulphonyl, amino, alkylamino, dialkylamino, aryl, aryloxy, arylthio, arylamino, aralkyl, formylamino, alkylcarbonylamino, formyl, carbamoyl, alkylcarbonyl and/or alkoxycarbonyl,R.sup.2 stands for hydrogen or alkyl andR.sup.3 stands for hydrogen or nitro.

Abstract: A 5-aminopyrazole of the formula (I) ##STR1## in which R.sup.2 represents CF.sub.3 or CCL.sub.2 F,R.sup.3 represents hydrogen or CH.sub.3and n represents the number 0 or 1.The 5-aminopyrazole of formula (I) is effective in combating insects, sense animals and nematodes.

Abstract: Pesticidal substituted 5-methylamino-1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents alkyl, andR.sup.2 represents halogenoalkyl.

Abstract: A method of combating agricultural pest comprising applying a pesticidally effective amount of a substituted 1,4-naphthoquinone on agricultural pests and/or their environment, said 1,4-naphthoquinone being of the formula ##STR1## in which n represents the number zero or a number from 1 to 12,R.sup.1 represents hydrogen, t-butylcarbonyl or acetyl andR.sup.2 represents phenyl which is substituted by bromine, fluorine, chlorine, trifluoromethyl, trifluoromethoxy, trifluoromethylsulphenyl, trifluoromethylsulphonyl or trimethylsilyl or cyclohexyl which is substituted by methyl, trifluoromethyl or trimethylsilyl orR.sup.2 represents C.sub.1 -C.sub.8 -alkyl which is substituted by fluorine, chlorine or bromine.

Abstract: A method of combating acarids which comprises applying to such acarids or to an acarid habitat an acaricidally effective amount of an azomethine of 2,3-diaminomaleic acid nitrile of the formula ##STR1## in which X represents halogen, halogenoalkyl or CN and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be identical or different and represent hydrogen, optionally substituted alkyl, optionally substituted alkoxy, halogen, CN, NO.sub.2, optionally substituted dialkylamino, alkoxycarbonyl, optionally substituted alkylthio, optionally substituted alkylthionyl, optionally substituted alkylsulphonyl, OH, SH or NH.sub.2. The compounds other than the 2-chloro-and 2,6-dichloro-toluylideneamino-compounds are new.

Abstract: Pesticidal 5-ethylamino-1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,R.sup.2 represents halogenoalkyl andn represents a number 0, 1 or 2, with the proviso that if R.sup.1 represents hydrogen, R.sup.2 is not dichlorofluoromethyl and n is not 0.These compounds are not only active against plant, hygiene and stored product pests, but also, in the veterinary medicine sector, against animal parasites, such as scaly ticks, argasidae, scab mites, trombidae, flies (stinging and sucking), parasitic fly larvae, lice, hair lice, bird lice and fleas.

Abstract: Insecticidal 1,2,3,4-tetrahydro-5-nitropyrimidines of the formula ##STR1## in which R.sup.1 stands for hydrogen or for optionally substituted radicals from the group consisting of benzyl, picolyl (pyridylmethyl) and phenoxyalkyl,n stands for the number 0 or 1 andR.sup.2 stands for the --A--R.sup.3 group, in whichA stands for a direct bond or for the --(CH.sub.2).sub.m -- or --(CH.sub.2).sub.x --Y--(CH.sub.2).sub.z -- groupings, wherem stands for the numbers 1 to 4,x and z stand for the numbers 0, 1 or 2, it being possible for x and z to be identical or different, andY stands for oxygen, sulphur or for the --NH-- or ##STR2## groupings, whereR.sup.4 stands for optionally alkoxycarbonyl-substituted C.sub.1 -C.sub.4 -alkyl, cyano, hydroxyl or for phenyl, andR.sup.3 stands for halogeno-C.sub.1 -C.sub.

Abstract: A method for combating arachnida which comprises applying to arachnida and/or to a habitat thereof an effective pest combating amount of at least one derivative of a 2,3-diaminomaleonitrile of the formula ##STR1## in which X represents hydrogen, halogen, halogenoalkyl or CN, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined or different and represent hydrogen, alkyl, alkoxy, halogen, CN, NO.sub.2, dialkylamino, alkoxycarbonyl, alkylthio, alkylthionyl, alkylsulphonyl, OH, SH or NH.sub.2, wherein R.sub.1 and R.sub.b together represent the radical (II) ##STR2## in which Y represents hydrogen, halogen, halogenoalkyl or CN, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 are identical or different and represent hydrogen, alkyl, alkoxy, halogen, CN, NO.sub.2, dialkylamino, alkoxycarbonyl, alkylthio, alkylthionyl, alkylsulphonyl, OH, SH or NH.sub.2, and in which R.sub.c and R.sub.d together represent a chemical bond,or R.sub.a and R.sub.b together represent the radical (II), in which Y, R.sup.5, R.sup.6, R.sup.7 and R.sup.

Abstract: Insecticidal 1,2,3,4-tetrahydro-5-nitro-pyrimidine derivatives of the formula ##STR1## in which n is 0 or 1,A is a direct bond, --(CH.sub.2).sub.m -- or --(CH.sub.2).sub.x --Y--(CH.sub.2).sub.z,m is a number from 1 to 4,x and z each independently is 0, 1 or 2,Y is oxygen, sulphur, --NH-- or ##STR2## R.sup.2 is optionally alkoxycarbonyl-substituted C.sub.1 -C.sub.4 -alkyl, or cyano, hydroxyl or phenyl, andR.sup.1 is halogeno-C.sub.1 -C.sub.4 -alkyl or an optionally substituted radical from the group consisting of phenyl, naphthyl, anthryl, phenanthryl, pyridyl, furyl, thienyl, piperidyl and 1,3-benzodioxolyl,and their acid addition salts.

Abstract: Pesticidally active pyrimidinyl (thiono)(thio)-phosphates of the formula ##STR1## in which R.sup.1 stands for alkoxy,R.sup.2 stands for alkoxy or alkylthio andX stands for oxygen or sulphur,with the proviso that the two radicals R.sup.1 and R.sup.2 are identical when they stand for alkoxy.

Abstract: Arthropodically active 3-halogenoalkyl-1-arylpyrzoles of the formula ##STR1## in which R.sup.1 represents halogenoalkyl,R.sup.2 represents cyano, or represents hydroxycarbonyl, or represents carbamoyl or thiocarbamoyl, or represents alkoxycarbonyl, N-alkylcarbamoyl or N,N-dialkylcarbamoyl, or represents alkenyloxycarbonyl, N-alkenylcarbamoyl or N,N-dialkenylcarbamoyl, or represents alkinyloxycarbonyl, N-alkinylcarbamoyl, N,N-dialkinylcarbamoyl or N-arylcarbamoyl, or represents alkylcarbonyl, halogenoalkycarbonyl or cycloalkylcarbonyl,R.sup.3 represents hydrogen, alkyl, halogenoalkyl or cycloalkyl andAr represents substituted phenyl, with the exception of the 2,4-dinitrophenyl radical.

Abstract: Pest-combating agents, especially as insecticides, which are 1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogenoalkyl,R.sup.2 represents alkyl, halogenoalkyl, optionally substituted aralkyl or optionally substituted aryl,R.sup.3 represents hydrogen, alkyl or halogenoalkyl,R.sup.4 represents alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, halogenoalkinyl or in each case optionally substituted aryl or heteroaryl,X represents oxygen, sulphur or an N-alkyl radical,Ar represents in each case optionally substituted phenyl or pyridyl,m represents a number 0 or 1 andn represents a number 0, 1 or 2,have been found.

Abstract: 1-Aralkylpyrazoles of the formula ##STR1## in which Ar represents optionally substituted aralkyl,R.sup.1 represents alkyl,R.sup.2 represents hydrogen, alkyl, halogenoalkyl, optionally substituted benzyl, or the --COR.sup.4, --COOR.sup.4, --NR.sup.5 R.sup.6 or --CONR.sup.5 R.sup.6 radicals,whereR.sup.4 represents hydrogen, alkyl, halogenoalkyl or alkoxyalkyl, andR.sup.5 and R.sup.6 represent hydrogen and/or alkyl,R.sup.3 represents hydrogen or alkyl, orR.sup.2 and R.sup.3 together represent the --Co--(CH.sub.2).sub.m --, --(CH.sub.2).sub.m --or --CH.dbd.CH--CH.dbd.CH-- groups, wherem represents the numbers 2, 3, 4 or 5, andn represents the numbers 0, 1 or 2, which possess pesticidal activity.

Abstract: A method of combating arthropods and nematodes which comprises applying thereto, to a habitat thereof or to an area from which they are to be excluded an arthropodicidally or nematocidally effective amount of at least one long-chain halogenoolefine of the formula (I) ##STR1## in which R represents a straight-chain or branched alkyl radical with 8 to 25 carbon atoms in the straight chain, the alkyl radical optionally being interrupted once or several times by a --C.tbd.C-- and/or ##STR2## in which Z and Z.sup.1 are identical or different and represent hydrogen or methyl andR.sup.1 represents hydrogen, alkyl or halogen.Those compounds are new wherein R has at least 12 carbon atoms in the straight chain.

Abstract: New 1,2,3,6-tetrahydro-5-nitro-pyrimidine derivatives of the formula ##STR1## in which n represents the numbers 0, 1 or 2,R.sup.1 represents hydrogen or optionally substituted radicals from the series comprising alkyl, alkenyl, alkinyl, aralkyl and hetarylalkyl, andR.sup.2 represents dialkylamino, alkoxy, alkenyloxy, aralkoxy or optionally substituted radicals from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl and hetarylalkyl,and their acid addition salts have been found.It has furthermore been found that these 1,2,3,6-tetrahydro-5-nitor-pyrimidine derivatives have unexpectedly high activity as insecticides, nematicides and ectoparasiticides.

Abstract: Insecticidally and acaricidally active novel 1-aryl-3-tert.-butyl-pyrazoles of the formula ##STR1## in which R.sup.1 represents nitro or halogen,R.sup.2 represents halogen or the --NR.sup.3 R.sup.4 group, and also may represent hydrogen when R.sup.1 denotes halogen,whereR.sup.3 represents hydrogen, in each case optionally substituted alkyl, alkenyl or alkinyl, and in each case optionally substituted cycloalkyl or cycloalkylalkyl andR.sup.4, independently of R.sup.3, represents the same radicals as R.sup.3l , and, in addition, a ##STR2## radical, where X represents oxygen or sulphur andR.sup.5 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, optionally substituted cycloalkyl, optionally substituted aryl, alkoxy, alkylthio, optionally substituted aryloxy, optionally substituted arylthio, alkylamino, dialkylamino or optionally substituted arylamino; andAr represents optionally substituted phenyl, apart from dinitrophenyl, or optionally substituted pyridyl.

Abstract: Substituted furazans of the formula ##STR1## in which R and R.sup.1 are identical or different and represent optionally substituted aromatic or heteroaromatic radicals,R.sup.2 represents hydrogen, an OH or COOH grouping or an optionally substituted radical from the series comprising alkyl, alkoxy, cycloalkyl, cycloalkenyl, alkoxycarbonyl, alkoxythiocarbonyl, alkylsulphonyl, arylsulphonyl and aralkyl,Y represents oxygen or an S(O).sub.m, --CR.sup.3 R.sup.4, CO or NR.sup.5 grouping,in whichm represents the number 0, 1 or 2 andR.sup.3, R.sup.4 and R.sup.5 are identical or different andrepresent hydrogen or alkyl,n represents the number 0 or 1 andx represents oxygen or sulphur,and wherein, ifR represents phenyl,R.sup.1 represents phenyl,R.sup.2 represents hydrogen andx represents oxygen or sulphur,thenn represents the number 1,or ifn represents the number 0,R represents 4-bromophenyl,R.sup.1 represents 4-chlorophenyl andR.sup.2 represents hydrogen,thenX represents sulphur, which possess pesticidal activity.

Abstract: Arthropodicidally active 1-aralkylpyrazoles of the formula ##STR1## in which R.sup.1 represents alkyl,R.sup.2 represents alkyl,R.sup.3 represents hydrogen or alkyl,Ar represents optionally substituted aralkyl andn represents the numbers 0, 1 or 2.

Abstract: Novel insecticidally and acarididally active vinylcyclopropanecarboxylic acid esters of the formula ##STR1## in which R represents alkylthio, alkylsulphinyl, alkylsulphonyl,amino, monoalkylamino or dialkylamino, and whereinX and Y either simultaneously represent halogen orX and Y simultaneously represent alkyl, or in whichX represents CF.sub.3,Y represents Cl and,R simultaneously represents methylmercapto.The alcohols of such esters are also new.

Abstract: 1-Aryl-pyrazole of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogenoalkyl,R.sup.2 represents alkyl, halogenoalkyl or in each case optionally substituted aralkyl or aryl,R.sup.3 represents hydrogen or halogen,Ar represents optionally substituted phenyl or pyridyl, andn represents the number 0, 1 or 2,the 1-aryl-pyrazole being useful in agents for combating pests.