Abstract: A method of combating insects, sense animals and nematodes comprising applying to insects, arachnids and nematodes and/or their environment an effective amount of at least one 5-aminopyrazole of the formula (I) ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogenoalkyl,R.sup.2 represents alkyl, halogenoalkyl, unsubstituted or substituted aralkyl or unsubstituted or substituted aryl,R.sup.3 represents hydrogen, alkyl or a radical ##STR2## Ar represents unsubstituted or substituted phenyl or unsubstituted or substituted pyridyl andn represents the number 0, 1 or 2,whereinX represents oxygen or sulphur andR.sup.4 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted aryl, alkoxy, alkylthio, unsubstituted or substituted aryloxy, unsubstituted or substituted arylthio, alkylamino, dialkylamino or unsubstituted or substituted arylamino.

Abstract: Pesticidally active 5-heterocyclyl-1-aryl-pyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or haloalkyl,R.sup.2 represents alkyl, alkenyl, alkinyl, cycloalkyl, haloalkyl, haloalkenyl, optionally substituted aralkyl or optionally substituted aryl,Ar represents in each case optionally substituted phenyl or pyridyl,Het represents a heterocycle of the formula ##STR2## n represents a number 0, 1 or 2, whereR.sup.3 and R.sup.4, independently of one another, represent in each case hydrogen, alkyl or phenyl.Intermediates of the formulas ##STR3## are provided, the former also being pesticidal.

Abstract: Novel halogenoalkyl-, alkenyl- and alkinyl-azoles of the formula ##STR1## in which X represents a nitrogen atom or a CH grouping,R represents optionally substituted tert.-alkyl or optionally substituted cycloalkyl, andA represents one of the groupings --C.tbd.C--, ##STR2## in which R.sup.1 represents halogen, alkoxy or trialkylsilyloxy,R.sup.2 represents hydrogen or halogen, andR.sup.3 represents halogen,and acid and metal salt addition products thereof synergize insecticides and herbicides which function by photosynthesis inhibition.

Abstract: Arthropodicidally active novel benzoyl(thio)ureas of the formula ##STR1## in which X is oxygen or sulphur,R.sup.1 is halogen andR.sup.2 is halogen.

Abstract: Arthropodicidally active novel benzoyl(thio)ureas of the formula ##STR1## in which X is oxygen or sulphur, andR.sup.1 and R.sup.2 each independently is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl.

Abstract: O-Ethyl O-isopropyl O-(2-trifluoromethyl-pyrimidin-5-yl)-phosphoric acid ester of the formula ##STR1## is insecticidally and nematocidally active.

Abstract: A method of combating insects and acarids which comprises applying to such insects, acarids or a habitat thereof, an insecticidally or acaricidally effective amount of a 5-amino-1-aryl-pyrazole of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogenoalkyl,R.sup.2 represents trifluoromethyl,R.sup.3 represents hydrogen, alkyl or alkenyl,R.sup.4 represents hydrogen, alkyl, alkenyl, alkinyl or a ##STR2## radical, and Ar represents in each case optionally substituted phenyl or pyridyl, where X represents oxygen or sulphur, and R.sup.5 denotes alkyl or halogenoalkyl.Some of the compounds are new.

Abstract: Insecticidally and acarididally active 1-arylpyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or halogen alkyl,R.sup.2 represents alkyl, alkenyl, alkinyl, cycloalkyl, halogenoalkyl, halogenoalkenyl, alkoxyalkyl, alkylthioalkyl, alkylsulphinylalkyl, alkylsulphonylalkyl, optionally substituted aralkyl or optionally substituted aryl,R.sup.3 represents alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl or optionally substituted aralkyl,R.sup.4 represents alkyl, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, alkoxyalkyl, alkylthioalkyl, cycloalkyl or optionally substituted aralkyl, and, in addition, also represents hydrogen in the case where R.sup.3 does not simultaneously represent unsubstituted alkyl, orR.sup.3 and R.sup.

Abstract: Herbicidally and insecticidally active 4-nitro-1-phenylpyrazoles of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is hydrogen, alkyl, cycloalkyl, hydroxyalkyl, alkoxyalkyl, alkylthioalkyl or halogenoalkyl,R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 each independently is hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkoxycarbonyl, or --(X).sub.n --R.sup.8,X is oxygen, sulphur, sulphinyl or sulphonyl,n is 0 or 1, andR.sup.8 is halogenoalkyl.

Abstract: Pesticidal compositions useful in protecting plants and also in the hygiene field are disclosed. The new tetramethylcyclopropanecarboxylates have the formula ##STR1## where R represents mercapto, methylthio, alkylsulphenyl or alkylsulphonyl.

Abstract: Novel arthropodicidally active compounds of the formula ##STR1## in which R represents amino or optionally substituted radicals from the series comprising alkyl, alkylamino, methyl-alkylamino, alkoxy, alkenyloxy and alkylthio,R.sup.1 to R.sup.8 are identical or different and represent hydrogen or optionally halogen-substituted radicals from the series comprising alkyl, alkenyl, alkoxyalkyl and alkylthioalkyl, or represent halogen, nitro or dialkylaminoalkyl or represent optionally substituted phenyl or benzyl, and two of the radicals R.sup.1 to R.sup.8, together with the carbon atom or atoms to which they are bonded, may furthermore form an optionally substituted monocyclic or bicyclic ring, andn represents zero or 1.intermediates therefor wherein R is replaced by Cl are also novel.

Abstract: An arthropodicidal composition comprising an arthropodicidally effective amount of an arthropodicidally active compound and a synergistically effective amount of at least one compound of the formula ##STR1## in which A is amino, alkylamino, dialkylamino or N-alkyl-N-arylamino, or an optionally substituted alkyl, alkenyl, alkoxy, alkenyloxy, alkylthio, aralkyl, aralkoxy, phenyl, phenoxy or phenylthio radical,R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 each independently is hydrogen, or an optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl or alkylthioalkyl radical, or is halogen, nitro or dialkylaminoalkyl, or is optionally substituted phenyl or benzyl, or two of the radicals R.sup.1 to R.sup.8, together with the carbon atom or atoms to which they are bonded form an optionally substituted monocyclic or bicyclic ring andn and m each independently is 0 or 1.

Abstract: A phosphoric acid ester of the formula ##STR1## in which Y is oxygen, sulphur or --NR--,R is hydrogen or alkyl,X is oxygen or sulphur, andR.sup.1 and R.sup.2 each independently is alkyl.

Abstract: Combating pests with compounds of the formula ##STR1## in which the radicals can have many specifically recited definitions. Many of the compounds are novel, particularly those where R' is --CN and R.sup.2 is --CN or --CONH.sub.2.

Abstract: In a synergistic pesticidal composition comprising (1) a pesticidally active compound and (2) a synergizing agent in amount sufficient to synergize the pesticidal activity of the pesticidally active compound, the improvement which comprises employing as the syngerizing agent a 2-(thi)oxo-1,3,2-oxazaphospholane of the formula ##STR1## in which X represents oxygen or sulphur,R represents an optionally substituted alkyl, alkenyl, alkynyl, phenyl, alkoxy, alkenoxy, alkynoxy, alkylthio, aralkoxy, amino, mono- or di-alkylamino, heterocyclic amino, N-alky-N-aryl-amino, phenoxy or phenylthio radical,R.sup.1 represents hydrogen, optionally subsituted alkyl, aralkyl, alkenyl, alkynyl or dialkylaminoalkyl,R.sup.2 represents hydrogen, alkylthioalkyl; or optionally substituted alkyl or aralkyl, or R.sup.1 and R.sup.2 together represent alkylene,R.sup.3 represents hydrogen or alkyl andR.sup.4 represents hydrogen, alkyl, or phenyl.

Abstract: Halogenoalkylcarbamic acid esters of the formula ##STR1## in which R, R.sup.1 and R.sup.2 independently of one another represent methyl which is optionally substituted by halogen, at least one of the methyl groups R, R.sup.1 and R.sup.2 being substituted by at least one halogen atom,R.sup.3, R.sup.4 and R.sup.5 are identical or different and individually represent hydrogen or optionally substituted alkyl andn represents 0 or 1,synergize the action of known arthropodicides.

Abstract: Aryl N-oxalyl-N-methyl-carbamates of the general formula ##STR1## in which X represents an alkoxy, alkenoxy, alkinoxy, aryloxy, alkylthio, alkenylthio, alkinylthio or arylthio radical, each of which may be optionally substituted or represents a radical of the general formula --N R.sup.3 R.sup.4, wherein R.sup.3 and R.sup.4 are identical or different and represent a hydrogen atom or an alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl or aryl radical, each of which may be optionally substituted, or the radicals R.sup.3 and R.sup.4, together with the N atom to which they are bonded, form an optionally substituted heterocyclic ring, andR.sup.1 represents an aryl radical which is optionally substituted,are novel and find use as pesticides, especially for combating insects, acarids and nematodes.

Abstract: Benzyl esters of the formula ##STR1## in which n is 1,2,3,4, or 5,R.sup.2 is hydrogen, C.sub.1-4 -alkyl, cyano or ethynyl,R.sup.3 is the radical of a carboxylic acid customary in pyrethroids or pyrethroid-like compounds, andat least one R.sup.1 is fluoroalkoxy or fluoroalkylmercapto, or two together are fluoromethylene- or fluoroethylene-dioxy, and the others, if present, are hydrogen or various radicals,which possess arthropodicidal properties. Various alcohols, amines, aldehydes, halides, and the like, corresponding to the alcohol moieties of the esters are also synthesized.

Abstract: Substituted cyclopropylmethyl(ene) ethers of the formula ##STR1## in which X.sup.1 and X.sup.2 are identical or different and represent halogen,R.sup.1 represents hydrogen or alkyl,R.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, optionally substituted aryl, halogenoalkyl, hetero-alkyl, alkoxyalkyl, alkylthioalkyl, optionally substituted alkenoxyalkyl, optionally substituted alkinoxyalkyl or (di)alkylaminoalkyl,R.sup.4 represents hydrogen or alkyl,R.sup.5 and R.sup.6 are identical or different and represent hydrogen or optionally substituted radicals from the series comprising alkyl, aryl and aralkyl andR represents a trihalogenoalkenyl, alkinyl or iodoalkinyl radical,exhibit some arthropodicidal activity and synergize other known arthropodicides.

Abstract: An insecticidal bait comprising an insecticidally effective amount of(a) .alpha.-cyano-3-phenoxy-4-fluorobenzyl 2,2-dimethyl-3-(.beta.,.beta.-dichlorovinyl)-cyclopropanecarboxylate of the formula ##STR1## and (b) an insect attracting amount of at least one ingestion attractant. It may also contain additional insecticides, a grinding auxiliary, carrier, adhesive or swelling agent. Surprisingly the principal active ingredient does not repel insects, as do other pyrethroid-like insecticides in baits.