the compounds of this invention can be prepared by reacting a hydrazide of formula ( iii ) below ## str10 ## where r has the meanings described above , with 1 - bromo - 2 - fluoroethane in the presence of a base . such bases include alkali metal hydroxides . preferred bases include sodium or potassium hydroxide . the compositions of the present invention may be prepared by formulating one or more compounds of the present invention with a suitable carrier , such as a liquid or solid carrier . suitable liquid carriers may be comprised of water , alcohols , ketones , phenols , toluene and xylenes . in such formulations , additives conventionally employed in the art may be utilized , such as one or more surface active agents and / or inert diluents , to facilitate handling and application of the resulting pesticide composition . alternatively , the pesticidal compounds may be applied in liquid or sprays when utilized in a liquid carrier , such as in a solution comprising a compatible solvent such as acetone , benzene , toluene or kerosene , or as dispersed in a suitable non - solvent medium such as water . the pesticidal compositions may alternatively comprise solid carriers taking the form of dusts , granules , wettable powders , pastes , aerosols , emulsions , emulsifiable concentrates , and water - soluble solids . for example , the pesticidal compounds of this invention may be applied as dusts when admixed with or absorbed onto powdered solid carriers , such as mineral silicates , e . g ., mica , talc , pyrophyllite and clays , together with a surface - active dispersing agent so that a wettable powder is obtained which then is applied directly to the loci to be treated . alternatively , the powdered solid carrier containing the compound admixed therewith may be dispersed in water to form a suspension for application in such form . granular formulations of the compounds are preferred for field treatment and are suitable for application by broadcasting , side dressing , soil incorporation or seed treatment , and are suitably prepared using a granular or pellitized form of carrier such as granular clays , vermiculite , charcoal or corn cobs . the pesticide is dissolved in a solvent and sprayed onto an inert mineral carrier such as attapulgite granules ( 10 - 100 mesh ), and the solvent is then evaporated . such granular compositions may contain from 2 - 25 % pesticide based on carrier plus pesticide , with 3 - 15 % being preferred . in addition , the pesticide may also be incorporated into a polymeric carrier such as polyethylene , polypropylene , butadiene - styrene , styrene - acryonitrile resins , polyamides , poly ( vinyl acetates ) and the like . when encapsulated , the pesticide may advantageously be released over an even longer time period , extending its effectiveness further than when used in non - encapsulated form . another method of application to loci to be treated is aerosol treatment , for which the compound may be dissolved in an aerosol carrier which is a liquid under pressure but which is a gas at ordinary temperature ( e . g ., 20 ° c .) and atmospheric pressure . aerosol formulations may also be prepared by first dissolving the compound in a less volatile solvent and then admixing the resulting solution with a highly volatile liquid aerosol carrier . for pesticidal treatment of plants ( such term including plant parts ), the compounds of the invention preferably are applied in aqueous emulsions containing a surface - active dispersing agent which may be non - ionic , cationic or anionic . suitable surface - active agents are well known in the art , and include those disclosed in u . s . pat . no . 2 , 547 , 724 ( columns 3 and 4 ). the compounds of the invention may be mixed with such surface - active dispersing agents , with or without an organic solvent , as concentrates for the subsequent addition of water to yield aqueous suspensions of the compounds at desired concentration levels . in addition , the compounds may be employed with carriers which themselves are pesticidally active , such as insecticides , acaricides , fungicides or bactericides . it will be understood that the amount of the pesticidally active compound in a given formulation will depend upon the specific pest to be combatted , as well as upon the specific chemical composition and formulation of the compound being employed , the method of applying the compound / formulation and the locus of treatment so that the pesticidally effective amount of the compound may vary widely . generally , however , concentrations of the compound as the active ingredient in pesticidally effective formulations may range from about 0 . 1 to about 95 percent by weight . spray dilutions may be as low as a few parts per million , while at the opposite extreme , full strength concentrates of the compound may be usefully applied by ultra low volume techniques . when plants constitute the loci of treatment , concentration per unit area may range between about 0 . 01 and about 50 pounds per acre , with concentrations of between about 0 . 1 and about 10 pounds per acre preferably being employed for crops such as corn , tobacco , rice and the like . to combat pests , sprays of the compounds may be applied to any suitable locus , such as to the pests directly and / or to plants upon which they feed or nest . the pesticidally active formulations may also be applied to the soil or other medium in which the pests are present . harmful insects and acarids attack a wide variety of plants , including both ornamental and agricultural plants and inflict damage by consuming roots and / or foliage , withdrawing vital juices from the plants , secreting toxins and often by transmitting diseases . the compounds of the present invention may be advantageously utilized to minimize or prevent such damage . the specific methods of application , as well as the selection and concentration of these compounds will of course vary depending upon such circumstances as geographic area , climate , topography , plant tolerance , etc . for specific circumstances , one skilled in the art may readily determine the proper compound , concentration and method of application by routine experimentation . the compounds of the invention are particularly useful as insecticides and acaricides for foliar application . the compounds are particularly effective for controlling insects , such as tobacco budworm and mites , such as spider mites and rust mites . the following examples are given merely to illustrate the scope of the present invention . the invention herein is not intended to be limited to the actual examples provided . a solution of 2 . 9 g ( 0 . 07 mole ) sodium hydroxide dissolved in 10 ml of water was added dropwise at room temperature to a mixture of 6 . 5 g ( 0 . 03 mole ) 4 - bromobenzoic hydrazide and 4 . 0 g ( 0 . 03 mole ) 1 - bromo - 2 - fluoroethane in 25 ml of ethanol . the resulting solution was refluxed for two and one - half hours . the mixture was cooled to room temperature , diluted with 150 ml of water and extracted several times with ether ( 100 ml ). after separation and drying over anhydrous sodium sulfate , the solution was filtered and evaporated under reduced pressure leaving 4 . 6 grams of an oil ( 63 . 6 % yield ), which was purified by distillation . the product was characterized by ir and nmr spectroscopy . to 1 gm of 2 -( 4 - bromophenyl )- 5 , 6 - dihydro - 4h - 1 , 3 , 4 - oxadiazine dissolved in 40 ml of acetonitrile , was added , with stirring , 2 drops of triethylamine followed by 1 gm of 4 -( trifluoromethyl ) phenyl isocyanate and stirred for 1 hour at room temperature . the solvent was then evaporated under reduced pressure and the resulting solid was washed with hexane and air - dried , producing 1 . 0 gm of 2 -( 4 - bromophenyl )- 5 , 6 - dihydro - n -[( 4 - trifluoromethyl ) phenyl ]- 4h - 1 , 3 , 4 - oxadiazine - 4 - carbamide , mp 146 °- 148 ° c . ( 50 % yield ). additional compounds were prepared in accordance with the above procedures . these compounds and their acaricidal and insecticidal activity are summarized in tables i and ii . the nmr data are summarized in table iii . table i__________________________________________________________________________ ## str11 ## cmpd # r x r . sup . 1 mi miovl rph tb tbov__________________________________________________________________________1 2 - f -- h 0 70 ( 0 ) 50 40 1002 h ch . sub . 2 h 0 100 ( 0 ) 50 20 03 h -- conhc . sub . 6 h . sub . 4 cl 0 100 ( 0 ) 30 0 04 4 - ch . sub . 3 -- ch . sub . 3 0 40 ( 0 ) 80 0 05 4 - ch . sub . 3 o -- h 0 0 100 80 1006 4 - ch . sub . 3 o -- cohnc . sub . 6 h . sub . 4 cl 0 70 ( l ) 100 40 1007 4 - f -- h 100 50 ( l ) 90 80 898 2 , 4 - cl ch . sub . 2 o h 0 0 100 40 999 2 , 4 - cl ch . sub . 2 o conhc . sub . 6 h . sub . 5 0 70 ( l ) 100 0 5610 2 , 5 - cl -- h 70 100 ( 0 ) 100 80 10011 4 - cl -- h 0 70 ( 0 ) 50 80 10012 4 - ch . sub . 3 -- h 0 0 100 100 10013 4 - ch . sub . 3 s -- ch . sub . 3 0 50 ( 0 ) 25 0 10014 4 - ch . sub . 3 s -- h 50 100 ( 0 ) 50 0 815 4 - ch . sub . 3 s -- conhc . sub . 6 h . sub . 4 cl 50 100 ( 0 ) 0 0 10016 4 - br -- h 0 100 ( 0 ) 75 0 10017 4 - no . sub . 2 -- h 0 100 ( 0 ) 90 0 10018 4 - br -- conhc . sub . 6 h . sub . 4 cl 0 100 ( 0 ) 50 60 10019 2 , 4 - ch . sub . 3 -- h 0 100 ( 0 ) 50 0 9720 2 , 4 - ch . sub . 3 -- conhc . sub . 6 h . sub . 4 cl 0 100 ( 0 ) 0 0 10021 2 , 4 - ch . sub . 3 -- con ( ch . sub . 3 ). sub . 2 0 100 ( 0 ) 25 0 10022 2 - c . sub . 6 h . sub . 5 ch . sub . 2 o -- h 0 80 ( 0 ) 95 55 10023 2 - cl -- conhc . sub . 6 h . sub . 4 cl 0 100 ( 0 ) 0 0 624 2 - cl -- h 0 100 ( 0 ) 50 10 10025 4 - cf . sub . 3 -- h 0 100 ( 0 ) 0 100 10026 4 - cf . sub . 3 -- conhc . sub . 6 h . sub . 4 cl 0 100 ( 0 ) 0 100 10027 2 - c . sub . 6 h . sub . 5 ch . sub . 2 o -- conhc . sub . 6 h . sub . 4 cl 50 70 ( 0 ) 45 32 4828 2 , 4 - ch . sub . 3 -- ch . sub . 3 0 70 ( 0 ) 25 20 9929 2 , 4 - cl -- h 100 100 ( 0 ) 100 20 10030 2 - ch . sub . 3 -- h 0 70 ( 0 ) 90 0 9831 2 , 4 - cl -- conhc . sub . 6 h . sub . 4 cl 0 0 100 0 10032 3 - br -- h 50 100 ( 0 ) 100 0 10033 3 - br -- conhch . sub . 3 50 100 ( 0 ) 100 40 10034 2 - c . sub . 6 h . sub . 5 o -- h 0 50 ( 0 ) 100 0 3935 4 - c . sub . 2 h . sub . 5 o -- h 0 80 ( 0 ) 95 0 10036 3 - ch . sub . 3 o -- h 0 100 ( 0 ) 100 20 10037 4 - c . sub . 6 h . sub . 5 -- h 0 85 ( 0 ) 100 80 10038 2 - ch . sub . 3 o -- h 0 70 ( 0 ) 60 0 039 3 , 4 - ch . sub . 3 o -- h 0 50 ( 0 ) 95 0 1140 4 - n ( ch . sub . 3 ). sub . 2 -- h 0 100 ( 0 ) 95 0 10041 4 - c ( ch . sub . 3 ). sub . 3 -- h 0 50 ( 0 ) 90 0 9842 3 - ch . sub . 3 -- h 0 100 ( 0 ) 100 40 9843 3 , 4 - ch . sub . 3 o ch . sub . 3 h 0 50 ( 0 ) 60 0 144 3 - f -- h 0 100 ( 0 ) 75 20 10045 2 - cl , 4 - no . sub . 2 -- h 0 100 ( 0 ) 100 0 10046 2 - ch . sub . 3 , 4 - cl ch . sub . 2 o h 0 100 ( 0 ) 99 20 10047 4 - f ch . sub . 2 o h 0 100 ( 0 ) 100 60 10048 4 - ch . sub . 3 o ( ch . sub . 2 ). sub . 2 h 0 100 ( 0 ) 30 0 9549 h ( ch . sub . 2 ). sub . 2 h 0 100 ( 0 ) 50 0 10050 4 - cl ch . sub . 2 o h 0 100 ( 0 ) 95 4 9351 h ch . sub . 2 o h 0 70 ( 0 ) 90 0 100__________________________________________________________________________ table ii__________________________________________________________________________ ## str12 ## cmpd # r . sup . 3 r . sup . 2 mi miovl rph tb tbov__________________________________________________________________________52 c . sub . 4 h . sub . 3 o ch . sub . 3 0 0 85 0 053 ch . sub . 2c . sub . 10 h . sub . 7 ch . sub . 3 0 0 75 0 154 ch . sub . 2c . sub . 5 h . sub . 4 n ch . sub . 3 0 0 75 0 055 ch . sub . 2c . sub . 8 h . sub . 6 n h 0 0 100 0 056 3 - brc . sub . 6 h . sub . 4 h . hcl 0 50 ( 0 ) 100 0 257 c . sub . 6 h . sub . 4n ( ch . sub . 3 ). sub . 2 h . hcl 0 50 ( 0 ) 100 0 058 c . sub . 6 h . sub . 44 - oc . sub . 2 h . sub . 5 h . hcl 0 85 ( 0 ) 100 0 10059 c . sub . 6 h . sub . 32 , 3 -( ch . sub . 3 o ). sub . 2 h . hcl 0 80 ( 0 ) 95 20 2160 c . sub . 6 h . sub . 44 - c ( ch . sub . 3 ). sub . 3 h . hcl 0 0 95 0 061 c . sub . 6 h . sub . 43 - ch . sub . 3 o h . hcl 0 0 100 0 062 ch . sub . 3 h 0 0 90 0 063 c . sub . 5 h . sub . 4 n h 0 50 ( 0 ) 25 40 064 ch . sub . 2c . sub . 4 h . sub . 3 s h 0 100 ( 0 ) 90 0 965 4 - brc . sub . 6 h . sub . 4 h . hcl 0 100 ( 0 ) 40 40 10066 c . sub . 3 h . sub . 7 h 0 0 50 16 767 4 - brc . sub . 6 h . sub . 4 ch . sub . 2 ch . sub . 2 f . hcl 30 100 ( 0 ) 85 100 10068 c . sub . 4 h . sub . 3 n . sub . 2 h 0 100 ( 0 ) 70 15 069 4 - brc . sub . 6 h . sub . 4 conhc . sub . 6 h . sub . 4 - 4 - ocf . sub . 3 0 0 0 100 570 4 - brc . sub . 6 h . sub . 4 conhc . sub . 6 h . sub . 4 - 4 - cf . sub . 3 30 0 0 100 1__________________________________________________________________________ table iii______________________________________01 m ( 2 ) 2 . 3 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 3 - 7 . 802 m ( 2 ) 3 . 0 ; s ( 2 ) 3 . 4 ; m ( 2 ) 4 . 3 ; s ( 5 ) 7 . 303 m ( 2 ) 4 . 0 ; m ( 2 ) 4 . 5 ; m ( 9 ) 7 . 3 - 8 . 1 ; s ( 1 ) 9 . 204 s ( 3 ) 2 . 3 ; m ( 4 ) 7 . 1 - 7 . 7 ; s ( 3 ) 2 . 9 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 505 m ( 2 ) 3 . 1 ; s ( 3 ) 3 . 8 ; m ( 2 ) 4 . 5 ; d ( 2 ) 6 . 9 ; d ( 2 ) 7 . 706 m ( 2 ) 3 . 1 ; s ( 3 ) 3 . 7 ; m ( 2 ) 4 . 3 ; m ( 8 ) 6 . 9 - 7 . 707 m ( 2 ) 3 . 1 ; m ( 24 . 5 ; m ( 5 ) 7 . 2 - 8 . 008 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 2 ; s ( 2 ) 4 . 6 ; m ( 4 ) 7 . 0 - 7 . 409 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 2 ; s ( 2 ) 4 . 6 ; m ( 7 ) 7 . 0 - 7 . 510 m ( 2 ) 3 . 2 ; m ( 2 ) 4 . 5 ; s ( 2 ) 7 . 3 ; s ( 1 ) 7 . 511 m ( 2 ) 3 . 2 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 3 - 7 . 912 s ( 3 ) 2 . 3 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; d ( 2 ) 7 . 2 ; d ( 2 ) 7 . 713 s ( 3 ) 2 . 4 ; s ( 3 ) 2 . 8 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 1 - 7 . 714 s ( 3 ) 2 . 5 ; m ( 2 ) 3 . 2 ; m ( 2 ) 4 . 5 ; d ( 2 ) 7 . 2 ; d ( 2 ) 7 . 615 s ( 3 ) 2 . 5 ; s ( 1 ) 8 . 8 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 1 - 7 . 716 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 517 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 5 ) 8 . 018 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 8 ) 7 . 0 - 7 . 719 s ( 3 ) 2 . 3 ; s ( 3 ) 2 . 4 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 4 ) 6 . 8 - 7 . 420 s ( 3 ) 2 . 3 ; s ( 3 ) 2 . 4 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 7 ) 7 . 0 - 7 . 5 ; s ( 1 ) 8 . 721 s ( 3 ) 2 . 3 ; s ( 3 ) 2 . 4 ; s ( 6 ) 3 . 0 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 3 ) 6 . 9 - 7 . 422 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; s ( 2 ) 5 . 0 ; m ( 10 ) 6 . 8 - 7 . 523 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 8 ) 7 . 0 - 7 . 624 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 1 - 7 . 525 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 4 - 7 . 926 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 8 ) 7 . 0 - 7 . 827 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; s ( 2 ) 5 . 0 ; m ( 14 ) 7 . 0 - 7 . 528 s ( 3 ) 2 . 3 ; s ( 3 ) 2 . 4 ; s ( 3 ) 2 . 8 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 5 m ( 3 ) 7 . 0 - 7 . 329 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 4 ) 7 . 1 - 7 . 630 s ( 3 ) 2 . 4 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 1 - 7 . 631 m ( 2 ) 4 . 0 ; m ( 2 ) 4 . 5 ; m ( 7 ) 7 . 1 - 7 . 6 ; s ( 1 ) 8 . 532 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 4 ) 7 . 2 - 7 . 933 d ( 3 ) 2 . 9 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 1 - 7 . 934 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 3 ; m ( 9 ) 7 . 0 - 7 . 535 t ( 3 ) 1 . 4 ; m ( 2 ) 3 . 0 ; q ( 2 ) 4 . 0 ; m ( 2 ) 4 . 5 ; m ( 2 ) 6 . 9 ; m ( 2 ) 7 . 836 m ( 2 ) 3 . 0 ; s ( 3 ) 3 . 8 ; m ( 2 ) 4 . 5 ; m ( 4 ) 6 . 9 - 7 . 437 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 5 ; m ( 9 ) 7 . 2 - 7 . 938 m ( 2 ) 3 . 0 ; s ( 3 ) 3 . 8 ; m ( 2 ) 4 . 4 ; m ( 4 ) 6 . 9 - 7 . 439 m ( 2 ) 3 . 0 ; s ( 6 ) 4 . 0 ; m ( 2 ) 4 . 4 ; m ( 3 ) 6 . 8 - 7 . 340 s ( 6 ) 3 . 0 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 4 ) 6 . 8 - 7 . 841 s ( 9 ) 1 . 3 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 4 - 7 . 842 s ( 3 ) 2 . 3 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 5 ; m ( 4 ) 7 . 2 - 7 . 643 m ( 2 ) 3 . 0 ; s ( 2 ) 3 . 5 ; s ( 6 ) 3 . 9 ; m ( 2 ) 4 . 3 ; s ( 3 ) 6 . 944 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 0 - 7 . 645 m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 3 ) 7 . 6 - 8 . 146 s ( 3 ) 2 . 1 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 3 ; s ( 2 ) 4 . 5 ; m ( 3 ) 7 . 0 - 7 . 247 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 3 ; s ( 2 ) 4 . 4 ; m ( 4 ) 6 . 9 - 7 . 148 m ( 6 ) 2 . 7 - 3 . 0 ; s ( 3 ) 3 . 7 ; m ( 2 ) 4 . 2 - 4 . 4 ; m ( 4 ) 6 . 8 - 7 . 249 m ( 6 ) 2 . 5 - 3 . 0 ; m ( 2 ) 4 . 1 - 4 . 4 ; s ( 5 ) 7 . 250 m ( 2 ) 2 . 8 - 3 . 2 ; m ( 4 ) 4 . 2 - 4 . 5 ; m ( 4 ) 6 . 8 - 7 . 351 m ( 2 ) 2 . 9 - 3 . 2 ; m ( 4 ) 4 . 3 - 4 . 5 ; m ( 5 ) 6 . 9 - 7 . 352 s ( 3 ) 2 . 9 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 5 ; m ( 3 ) 6 . 5 - 7 . 453 s ( 3 ) 2 . 7 ; m ( 2 ) 3 . 1 ; 3 ( 2 ) 4 . 0 ; m ( 2 ) 4 . 3 ; m ( 7 ) 7 . 3 - 8 . 054 s ( 3 ) 2 . 8 ; m ( 2 ) 2 . 9 ; s ( 2 ) 3 . 7 ; m ( 2 ) 4 . 3 ; m ( 5 ) 7 . 0 - 7 . 355 m ( 2 ) 2 . 9 ; s ( 2 ) 3 . 8 ; m ( 2 ) 4 . 3 ; m ( 5 ) 7 . 0 - 7 . 357 s ( 6 ) 3 . 1 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 0 - 7 . 558 t ( 3 ) 1 . 4 ; m ( 2 ) 3 . 0 ; q ( 2 ) 4 . 0 ; m ( 2 ) 4 . 3 ; m ( 4 ) 6 . 8 - 7 . 959 m ( 2 ) 3 . 0 ; s ( 6 ) 4 . 0 ; m ( 2 ) 4 . 5 ; m ( 3 ) 6 . 9 - 7 . 560 s ( 9 ) 1 . 3 ; m ( 2 ) 3 . 1 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 2 - 7 . 961 m ( 2 ) 3 . 1 ; s ( 3 ) 3 . 9 ; m ( 2 ) 4 . 4 ; m ( 4 ) 7 . 1 - 7 . 762 s ( 3 ) 2 . 0 ; m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 263 m ( 2 ) 3 . 0 ; m ( 2 ) 4 . 5 ; m ( 5 ) 7 . 1 - 8 . 864 m ( 2 ) 2 . 9 ; s ( 2 ) 3 . 4 ; m ( 2 ) 4 . 3 ; m ( 3 ) 7 . 0 - 7 . 365 m ( 2 ) 3 . 5 ; m ( 2 ) 4 . 6 ; s ( 4 ) 7 . 766 t ( 3 ) 1 . 0 ; m ( 2 ) 1 . 4 - 1 . 7 ; m ( 2 ) 2 . 0 - 2 . 3 ; m ( 2 ) 2 . 9 - 3 . 2 ; m ( 2 ) 4 . 2 - 4 . 567 m ( 4 ) 3 . 3 - 3 . 9 ; m ( 4 ) 4 . 5 - 5 . 5 ; m ( 4 ) 7 . 5 - 7 . 968 m ( 2 ) 3 . 1 - 3 . 3 ; m ( 2 ) 4 . 5 - 4 . 7 ; s ( 2 ) 8 . 5 ; s ( 1 ) 9 . 169 m ( 2 ) 3 . 7 - 4 . 0 ; m ( 2 ) 4 . 4 - 4 . 7 ; m ( 8 ) 7 . 2 - 8 . 2 ; s ( 1 ) 9 . 470 m ( 2 ) 3 . 7 - 4 . 0 ; m ( 2 ) 4 . 4 - 4 . 7 ; m ( 8 ) 7 . 6 - 8 . 2 ; s ( 1 ) 9 . 5______________________________________ the remaining examples relate to the pesticidal use of the compounds of this invention . in all these examples a stock solution for the compounds were prepared at 3000 ppm by dissolving 0 . 3 gram of the compound to be tested in 10 ml of acetone and adding 90 ml of distilled water plus four drops of ethoxylated sorbitan monolaurate , or a similar suitable wetting agent . for each example that follows , this stock solution was used and the specified dilutions made . all the tests discussed below , which involved treatment with compounds of this invention at concentrations of 3000 to 500 ppm were always repeated with controls , in which the active compound was not provided , to permit a comparison upon which the percent control was calculated . one day before treatment , a &# 34 ; fig8 &# 34 ; configuration of tree tanglefoot was applied to each of two cowpea primary leaves , one from each of two plants in a pot . in each figure , the circle nearer the stem was designated for the mite ovicide / larvicide test and the circle further from the stem was designated for the mite adulticide test . groups of adult mites ( tetranychus urticae koch ) were transferred into ovicide circles one day before treatment and the females were allowed to deposit eggs until one hour before treatment when the adults were removed . plants were sprayed to run off with a 1000 ppm solution diluted from the 3000 ppm stock solution . one day following treatment , groups of approximately 25 adult mites were transferred into the adulticide rings . five days later these rings were examined for live mites remaining on the leaves . the percent control was estimated based on the number of mites surviving on the check plants . nine days following treatment the ovicide / larvicide rings were examined for hatched eggs and living immature mites . the percent control was estimated based on the number of eggs hatching and immature mites surviving on the check plants . when the treatment effect was to eggs , control was designated as ovicidal ( o ); when the treatment effect was to immatures , control was designated as larvicidal ( l ). results of the mite adulticide ( mi ) and ovicide / larvicide ( miovl ) tests are presented in tables i and ii . the stock solution of 3000 ppm was diluted to 1000 ppm . one pot containing approximately 20 mars variety rice seedlings was treated with each formulation by spraying with a spray atomizer . one day after treatment plants were covered with a tubular cage and twenty adult rice delphacides , sogatodes orizicola , were transferred into each cage . five days after transferring , counts were made of the surviving planthoppers in each pot and percent control was estimated . results of the testing of rice planthoppers ( rph ) are presented in tables i and ii . the stock solution of 3000 ppm was used for this test . for each compound , 0 . 2 ml was pipetted onto the surface of each of 5 diet cells , allowed to spread over the surfaces and air dried for two hours . then a second instar helicoverpa virescens larva was introduced into each cell . after 14 days , the number of living larvae was determined for each treatment and percent control , corrected by abbott &# 39 ; s formula , was calculated . the results of the testing of tobacco budworms ( tb ) are given in tables i and ii . a solution of 1000 ppm was prepared by dissolving 0 . 015 g of the compound to be tested in 2 ml of acetone and adding 13 ml of distilled water plus 1 drop of ethoxylated sorbitan monolaurate . cheesecloth on which budworms had oviposited eggs 1 - 2 days before treatment was cut into pieces , each containing 40 - 80 eggs . these pieces were immersed for 1 minute in the solution . after 5 days , the numbers of hatched and unhatched eggs were counted and an adjusted percent control determined . the results are given in tables i and ii . a solution of 500 ppm was applied by foliar spray to infested host plants , and an estimated percent control was determined at 5 days after treatment . either green peach aphid ( gpa ) on tomato or corn leaf aphid ( cla ) on barley was evaluated . the results are given below : table iv______________________________________aphid tests percent controlcompound no . gpa cla______________________________________ 5 100 7 10010 10011 10012 9517 9819 10022 9924 10025 9930 100______________________________________ the test results demonstrate surprising and unexpected efficacy of the compounds of the instant invention as mite adulticides and mite ovicide / larvicides . the compositions were also potent in the control of insect pests including but not limited to rice planthoppers , tobacco budworms , and aphids . it is apparent that various modifications may be made in the formulation and application of the compounds of this invention without departing from the inventive concepts as defined in the following claims .
compounds of the formula ## str1 ## wherein : z is ## str2 ## wherein x is an integer from 0 to 4 , n is an integer from 0 to 5 and r is defined below ; or ## str3 ## wherein n is an integer from 0 to 5 and r is defined below ; r is selected from the group consisting of : hydrogen ; c 1 - c 4 alkyl ; c 1 - c 4 alkoxy ; halogen ; nitro ; phenyl ; cyano ; phenoxy ; benzyloxy ; benzyl ; c 1 - c 4 dialkylamino ; c 1 - c 4 alkylthio ; or c 1 - c 4 haloalkyl ; and r 1 is a c 1 - c 4 haloalkyl other than a chloroalkyl , or a group of the formula ## str4 ## wherein r 4 is halogen , c 1 - c 4 haloalkyl or c 1 - c 4 haloalkoxy ; physiologically acceptable salts thereof . these compounds exhibit insecticidal and acaricidal activity .