KURENAI : Kyoto University Research Information Repository Title Author(s) Citation Issue Date URL The Fundamental Research to the Application of Systemic Insecticides (II). The Absorption and Translocation of Several Insecticides in Rice Plant by Soil Application 石黒, 丈雄; 斎藤, 哲夫 防虫科学 (1971), 36(1): 17-24 1971-02-28 http://hdl.handle.net/2433/158666 Right Type Textversion Departmental Bulletin Paper publisher Kyoto University 防 虫 科 学 節 36 怨 -Ⅰ 2) Da ut er man.W. C・ ,J . E. Cas i da.J . B. Knaa k, T. Kowal c z yk:I .Agr .Fo o dChe 桝. ,7 .1 8 8 ( 1 9 5 9) . 3) Me t c al f , A. L. ,T. R. Fukut o,R. a. Mar c h:I . Ec o n.En t o mo t . ,5 0 ,3 3 8( 1 9 5 7 ) . 4) 0' Br i e n.R. D. : To x l ' c pho s L ) ho r l L S Es L c r s , Ac a d.Pr e s s ,Ne w Yor k,345( 1 9 6 0 ) . 5 ) Kumada,K. ,0. Sa t o,Y. Ohs umi ,S. Oht a: So i LSc I ' .& Pl on LNut r . ,1 3 ,1 51( 1 9 6 7 ) . l l , D. L. :I . Ec o n.Eni o mo t . ,5 8,2 4 9( 1 9 6 5 ) . 6 ) Bu 7 ) Bul l ,D. L. ,D. A. Li ndque s t ,∫. Ha c ks kayl o: J.Ec o n.Ent o mo L ・ ,56 ,1 2 9( 1 9 6 3) . 8 ) Ha c ks kayl o,J ・ ,D. L Bul l :I .Agr .Fo o d Che m. ,l l ,4 6 4( 1 9 6 3 ) . 9) Zaye d,S. M. A. D. ,A. Ha s s e n,I . M. I . Fakhr: BL ' o c he m.Phar mac o L . ,1 7,1 3 3 9( 1 96 8 ) . s i da, J . E. ,R. K. Cha pma n,T. C. Al l e n:I . 1 0) Ca Ec o n.Ent o mo 1 . ,4 5,5 6 8( 1 9 5 2 ) . t z i n,L. W. ,良. K. Chapman: I .Ec o n. l l ) Ge t . ,5 2,1 1 6 0( 1 9 5 9 ). Ent o mo t z i n,L. W. ,R. K. Cha pma n:I .Ec o n. 1 2 ) Ge 7 . ,5 3 ,4 7( 1 9 6 0 ) . EnL o mo ki , M. ,H. T. Rey nol ds:I .Ec o n.Ent o mo t ・ , 1 3 ) Za 5 4,5 68( 1 9 61 ) . t o,Y. ,J . Mi yamot o:Pe s t i c f d cand Te c h1 4 ) Sa u e ,1 6 ,2 3( 1 9 6 7 ) . nl q TheFundar r L e nt alRe 8 e ar C ht ot heAppl i c at i onofSy8 t e mi cl n8 e C t i c i de S( Ⅰ Ⅰ ) .TheAbs or pt i o n andTr ans l o cat i o nofSe ver alI ns e c t i c i de si n Ri c epl antbySoi lappl i c at i o n. Ta ke ol s t HG URO ★ andTet s uoSAI TO( Labor at or yofAppl i e dEnt o mo l o gyandNe mat o l o gy,Fa c ul t yofAgr i c ul t ur e, Na goyaUni ver s i t y,Na goya)Re c e i ve dNove mbe r2,1 9 7 0 .Bo t yu. Ka gak u3 6 ,1 7,1 971 . 4. 浸 透 殺 虫 剤 の 施 用法 に 関す る基 礎 的 研 究 ( Ⅰ Ⅰ ) 土 壌処F J i による各抑F 1透殺虫剤の水稲 におけ : 5 .l l .2 .受理 る浸透および移行について.石怨文雄+,荒藤哲夫 ( 名古屋大学凸学部q J山学救出)4 Vam i do t hi o n,Di me t hoa t e ,Di s ul f o t o n,Thi o r ne t o nお よび Me c ar bam の水m にわける浸透移 2 p-班誠化合物 を用 いて検討 した. す なわち,上記薬剤の乳#・ J ' 和郎紋を水稲の移Wl LT :土地 行性 を 3 表面 に施用 し,薬剤の浸透移行お よびそれに ともな う殺虫力 を調べた. その結果.Di s ul f ot o n は施用田後に水和の地下部に薬包が多 く. 地下部への兆刑出道が早 く, ま たI ) i me t hoat eは 地上部および地下部の英丑はほぼ同 じで あ り, 机物体内の泣述および移行が極 め て容易であると推窮 きれ る. i do m t hi o n の投透移行性はゆるやかであ り.Thi ome t onお よび Me c ar bam の これに対 して Va それは弱い.同 じ施用法で行なった ヒメ トビウンカに対す ろ殺虫試験 による死出串の糊加 は地上部 の茶毘の増加 とほほ一致 した. c ar ba m は土地吸新物が多 くI ) i me t hoat e 実験終了時 ( 施用後 6日日)に糾 、て Va i do m t hi o nと Me は少 なかった. I nt r oduc t i on si nc eSc hr adera ndKt i kent ha lf i r s tf oundt he s y s t e mi ca c t i onofor gano phos phor usi ns e c t i c i de s i n1 9 3 5,ma nye xpe r i ment sha vebe e n madeo n a bs or pt i on,t r ans l o cat i o nandme t a bo l i s mi np l a nt s wi t h var i o usappl i c at i on met ho ds . Atpr e s e nt , s y s t e mi ci ns e c t i c i de so c c upy a ver yi mpo r t ant po s i t i o ni npe s tc o nt r o lf oragr i c ul t ur alcr o ps . I twaspr o ve dby Davi d( 1 9 5 2 ) , 8 日yat om i and Sai t o( 1 9 6 7 ) 7 )a ndHa r r i s( 1 9 6 7 ) 6 )t ha ti ns e c t i c i da l ef f e c toft heappl i e dc he mi c al swe r ei nf l ue nc e d Pr e s e ntAddr e s s:Abur ahiLa bo r at o r i e s , Shi ono gi 皮 Co. ,Shi gaPr e f e c t ur e . 現在 :瓜即苑 拳法薬株 式会社 油 日 ラボ ラ トt )-ズ byt het ypeofs oi l .Fur t he r , Chi nge tat .( 1 9 61 ) , 2 ) Be nne t t( 1 9 4 9 ) 1 )a ndWe ddi nge tot .( 1 9 5 2 ) 1 8 )a nd Tei t z( 1 9 5 4 ) 1 8 )s t udi e da bs or pt i o n,t r ans l o cat i on and pe r s i s t e nc e oft he s e ve r ali ns e c t i ci de sr e・ s pe c t i ve l yonea c hcr o ps .The yr e por t e dt hatt he abs or pt i on s i t ei n cr op var i e sa c c or di ngt ot he appl i c a t i o nme t hodsofchem ic al s . Thi sr e por ti sc o nc er ne d wi t ht heabs or pt i on andt r a ns l ∝at i onoft hef o l l owl ngf i veS 空 pl abe l l e d s ys t emi c or ganophos phor us i ns e c t i ci de si nr i c e pl ant s: Vami dot hi on,Di me t hoa t e,Di s ul f ot on, Thi ome t o nandMe c ar ba m. Me t e r i al Sandmet hods Te s tf ns e c t i c l ' de s:Sul urpo f wder ,me t ha no land 1 7 防 虫 科 学 ammoni awe r eadde dt o2 2 . 4 mCi / gofS 空 pdi me t hyl pho s phi t e,whi c hwa spur c has e df r o m Sumi t omo At o mi cEner gyI ndus t r i e s ,andt hemi xt ur ewa s s t i r r e dt o make ammoni um s a l tof3 2 p0, 0di met hylt hi o pho s phat e ・ VAddi t i o n ofe qul mOl ar 5chl or o3l t hi a2 Nme t hylva le r am i dei na c e t on t ot her ea c t i o nmi xt ur ega veS 空 pVa mi do t hi o n,13) 0, 0di me t hy lS[ 2 1 ( 1 me t hylc ar bamoyl e t hyl t hi o) e t hy l ⊃phos phor ot bi o l at e ・ 57 mCi / gofpo t as s i um s ltof8 a 2 pdi me t hyldi t hi o ・ phos pha t e wa s di s s o l ve di na c e t o n and adde d equl mO l arNme t hyl1 c hl or oa c e t oa i deore m t h・ yl me r capt oe t hylc hl or i det ogi ve8 2 pDi me t ho at e ' 0, 0di me t hyl S-( Nme t hyl car bamoy l met hyl ) pho s phor odi t hi oa t eand3 2 pThi omet on, 0, 0di me . t hylSE( 2 e t hyl t hi o ) et hyl jphos phor odi t hi oat e ・ 54 . 5 mCi / g of pot as s i um s lt of S a 2 pdi e t hyl di t hi o phos phat ewasdi s s o l ve di nac e t o na ndadde d e qul mOl aret hyl mer ca pt o e t hylc hl or i deorchl or o・ a c et ylNmet hylur e t n t a og ive8 2 pDi s ul f ot o n, 0, 0di et hylS-( 2 e t hyl mer c apt o)e t hylphos phor odi t hi oa t e and a 2 pMe c ar bam,0, 0di e t hylS( Net hoxyc ar bo nyl Nme t hylcar bamo yl met hyl ) phos phor o di t hi oat e . Ea c hc ompo und wa sdi s s o l vedi nc hl or of or m, andwas he ds uf f i ci e nt l ywi t hwat e randc onc e n・ t r at e dt odr yne s s .Pur i t yofe ac hc ompo undwas de t er mi ne d by me ansofdi s t r i but i on ofr adi o・ a c t i vi t yi ns i l i c a ge lt hi n・ l ayerc hr omat o gr aphy and c o l or i me t r i c de t e r mi nat i o n wi t h pa l l adi um c hl or i de . Someoft hec ompo undswe r epur i f i e d f ur t he rwi t ht hi n・ 1 ayerc hr omat o gr apby. Eac hcompo undwasaddedt oac e t on:be nz e ne: Ne wc oa18 6 3( manuf ac t ur e dbyJ apanEmul s i f i e r co . ,Lt d. ) at :3 0: 3 0: 3 0 W/ W and ma de l O % emul s i f i abl ec o nc e nt r at i o n. Tc s りL ant :Twohundr e dgr am ofai r dr i e dpaddy f i e l ds oi lwhi c h waspas s e dt hr o ugh as i e veof 5mm wer eputi n agl a s spe t r idi s hof1 8c mi n di amet e randadde dwat erofpr es cr i be dquant i t y t oi t ・Fi f t e e ns t ands( 3pl a nt spe rs t and)ofr ic e s e e dl i ng ( Ai c bi ・ As a hi )att hr e el e afs t a gewe r e t r ans pl a nt e di ngl a s spe t r idi s h. 、 A♪Pl i c at t o n o fr adi o ac t i v ec o mL ' o unds t oy i c e n pe r c e nte mul s i f i abl ec onc e nt r at i o n bt ant s:Te wasdi l ut e dat0 . 0 5pe r c e ntwi t hdi s t i l l e dwat e r . , Af t e r2daysf r o mt r ans pl a nt i ngoft her i c epl ant s t hedi l ut eds o l ut i o nofea c hc ompo undwa sdr o ppe d 1 8 鍔 36 巻-I o nt ot hes ur f a c eofs oi lase ve nl yaspo s s i bl ew it h , api pe t t eatt her at eof2 0 mJ( as・ a c t i vei ngr e di e nt 1mg/ pe t r idi s h=3 . 6kg/ 1 0 ar e si nt er m o f5% gr anul e ) .Thepl ant swe r enotdi r e c t l yc ont ami ・ , ma t e dwi t ht hes o l ut i o n.Dur i ngt hee xper i me nt s t her i c epl ant swer eke pti n agr o wt hc ha mber t ha twe r es e twi t ha1 0 W f l uor or e c e ntl ampat 2 50 C,a nds uppl i e dv ( at e rt oma i nt ai nt hewat er l . s ur f a c eatac o ns t antl e ve Sampl i n g:Ats e ver l t a i me i nt e r va l s af t e rt he a ppl i c at i o n,t hr e es t andsoft her i c epl ant swer e s ampl e d at r a ndam i n or de rt oe xa mi ne t he di s t r i but i onofr a di o a c t i veme t abo l i t e si nt her i c e pl a nt . Ther oo t swe r ewas he ds uf f i c i e nt l ywi t h ar unni ng wat e rt o r e mo ve t he unabs o r be d i ns e c t i c i de s .Thet r e a t e dr i c epl ant swer edi vi de d i nt ot he ae r i aland r o ot par t s ,and wei ghe d r e s pe c t i ve l yaf t e rr e mo vi ngt hemo i s t ur ewi t ha f i l t e rpa pe r . Af t ermi nc i ngt hem, t hemat e r i a l swer egr i nde d wi t h2 mJo fdi s t i l l e dwat e ri nagl a s sho mo ge ni z e r ands ha ke di tvi gor o us l ywi t hs a meamo unt sof chl o r of or m.Ho mo ge nat e soft hea e r i a landr o o t par t swer ec e nt r i f uge df o r5mi nut e sat2 0 0 0r ・ p・ m・ t os e par at ec hl or of or ml ayerf r om wat e rl aye r . Ont heot he rhand, al lt r e at e ds oi l swe r ec ol l e c t e d f r om t hepet r idi s hr e s pe c t i v e l ya t6daysa f t er t hea ppl i c at i o n and e xt r a c t e dt hr e et i me swi t h 80 % ac e t o nei nwat er .Thee xt r a c t swer ec o nc e n・ t r a t e dwi t h ar ot ar ye vapor at orunderr e duc e d pr e s s ur e,andt he npar t i t i o ne dwi t hequa lvol ume ofc hl or of or m anddi s t i l l e d wa t e r . Chl or of or m, wa t e re xt r a c t sands oi l ・ abs or be ds ubs t a nc e swe r e s e pa r at e dbyt heabo vede s c r i be do pe r at i o n.Ea c h f r a c t i o nwasc o nc e nt r at e dwi t har ot a r ye vapor at o r unde rr educ e dpr e s s ur eagai n. Radi o as s a y:Tot a lamo unt sofc hl or of or me xt r a c t s ( unde c o mpo s e dpr oduc t ),wat e re xt r a c t s( de c om・ po s e d pr o duc t ) and pr e c i pi t a t e s we r e put i n s ampl i ngdi s he sf orr adi oa s s a yr e s pe c t i ve l y,a nd pour e d2 % KOI i a l c o ho ls o l ut i o ni nt ot he m.And t he n,e a c hf r a c t i o nwasdr i e dunde ra ni nf r ar e d l amp. Thepr e c i pi t at e swe r ei nc i ne r at e di nan e l e c t iCf r ur na c eat5 0 0o C.Ther adi o a c t i vi t i e sof ea c hf r a c t i o nwe r eme as ur e dbyt heAl o kagas ・ f l ow c ount e r . Bi o as s a yfo rb y ownz I L ant ho b♪e y:Ri c epl ant swhi c h we r et r ea t e dno n・ l a be l l e dc o mpo undsi nt hes a me 防 虫 科 学 邦 3 6 巻 -I me t hodsast hel a be l l e doÅe swe r er e ho ve d at 6,2 4,4 8,7 2.9 6,1 2 0 and 1 4 4 ho ur s af t e rt he ap pl i c a t i on.Twopl ant soft het r ea t edr i c epl a nt s we r et r ans f er r e di nt o at r ans par e ntc yl i nderof 3 5 mm i ndi a met erand2 0c mi nhe l ' h tma g deby po l yet hyl e ne f i l m,and t he nf i xe dw it hs ponge. Tenf e ma l e sofadul ts ma l l e rbr ownpl ant ho pper ( De t bhac o dc ss t n' at e L t aFa ll e n) . whi c hwe r er ear e d f o rs uc c es s i ve ge ne r a t i o nso nr i c epl a nt si nour l a bo r at or y,wer er e l e a s e di nt ot hecyl i nde r .The c y l i nde r swe r eke pti nagr o wt hc l l a mbe ra t2 5o C. Thenumbe roff al l e ni ns e c t swascount e daf t e r 2 4and 4 8hour s ,a nd t hec or r e c t e d pe r c e nt age wa sc a l uc ul a t edbyt heAbbo t ' sc or r e ct i o nme t hod. Thei ns e c t i c i dalt e s t swer er e pl i c at e dt hr e et i me s . Re 8 ul t 8 I nor de rt os t udyabs or pt i o nandt r a ns l oc at i o n , o fs ys t e mi cpho s phor usi ns e c t i c i de si nr i c epl a nt s S 空 pl a be l l e d co mpo undswer e appl i e d ont os oi l s ur f a c e .Af t e rt heappl i c at i o n,t her i c epl ant swe r e s a mpl e dats eve r ali nt e r val sf o rt her adi o as s ay. The decr e me nto fr adi oa c t i vi t y wasc or r e c t ed a ndt heamountofr adi o a c t i vemat e r i a l si nt he a e r i alandr oo tpar t sofr i c epl a ntwascal c ul at ed i nt e r m ofi ni t i alc ompo unds . The amount sof t her adi oa c t i vemat e r i a l si nt her i c epl ant sbe t we e n chl or of or m and wat e re xt r a c t s ar es ho wn i n Tabl e s1and2 . Asr e gar dst ot hepe ne t r at i o noft hec o mpo unds i nt ot he r o ot of r i ce p l a nt s ,t he amount so f c hl or of or me xt r a c t a bl eme t abo l i t e sofDi s ul f ot o n, Vami do t hi o n,Thi o me t o nandMe car bam at t ai ne d ma xi mumwi t hi nonl y6ho ur saf t ert heappl i c at i o n, anddi dno ti ncr eas eaf t er war ds .Ont hec ont r ar y, c hl o r o f or me xt r a c t a bl eme t abo l i t e sofDi me t hoa t e i nc r ea s e d gr adua l l y wi t ht he l a ps e of t i me . Di me t hoat ewaspr ove dt oha ve anat ur eoft he s t r o nge s tpe ne t r at i o namongt het e s tc o mpounds . Vami d o t hi o n s ho wed r api d i nc r eas e i n t he a c umul at e d amount of c hl or of or m e xt r a ct abl e me t a bo l i t e si nt hea er i alpar t sofr i c epl ant sf r o m 4 8hour saf t ert heappl i c at i on. Ther adi oa c t i ve me t abo l i t e s pa r t i t i one di n aque ousphas e we r e i ncr e as e dwi t ht hel a ps eoft i me,andt hel ar ge amount sofi t sme t abo l i t e swe r ef oundi nal lt e s t c ompoundsat4 8hour saf t e rt heappl i c at i on. Tabl e3S ho wst hec onc e nt r at i onofc hl or of or m par t i t i one dme t abo l i t e si nt her i c epl ant satc er t ai n t i mei nt er val saf t e rt heappl i cat i o n,andt hedat a Tabl e1 . Theamount sofr adi o a c t i vema t e r i a l sf o undi nt her o otpar t soft hr e eri c epl ant s ( 1s t and)a f t ert hea ppl i c at i o nofS 空 pl abe l l e di ns e c t i ci de s . Te s tc ompounds I Fr a c t i o n Va mi dot bi o n c hl or of or me xt r ac t s wa t e rext r a c t s une xt r ac t a bl e Di me t hoa t e c hl or o f or me xt r a c t s wa t e rext r a c t s une xt r ac t a bl e Di s ul f ot on c hl or o f or me xt r a c t s wa t e re xt r a c t s une xt r a c t a bl e Thi ome t o n c hl or of or me xt r a c t s wa t e re xt r a c t s une xt r a c t abl e Me c ar bam c hl or of o r me xt r a c t s wat e re xt r a c t s une xt r a c t abl e 6hr s . Ti me a f t e ra p p l i cati o n 2 4hr s . 14 8hr s . 172 hr s . 1 ● Unde t e c t a bl ebyt hega s ・ f l o wc o unt e r . 1 9 防 虫 科 学 弟 3 6 巻-1 Tabl e2. Theamo unt sofr adi oa c t i vemat e r i al sf o undi nt heae r i a lpar t so ft hr eer i c e pl ant s( 1s t a nd)af t e rappl i c at i onofS 空 pl a be l l e di ns e c t i c i de s . Tes tc o mpo unds I Fr a c t i o n Vami do t hi o n c hl o r o f or me xt r a c t s wat ere xt r a c t s une xt r ac t abl e Di met bo at e c hl or o f or me xt r a c t s wat e re xt r a c t s une xt r a c t abl e Di s ul f o t o n c hl or of or me xt r a c t s wa t e re xt r a c t s une xt r a c t abl e Thi ome t on c hl o r of or me xt r a c t s wat e re xt r a c t s une xt r a c t abl e Me c ar bam c hl or of or me xt r a c t s wa t e re xt r a c t s une xt r a c t a bュ e Ti meaf t e ra ppl i c at i o n s . 124hrs.1 6hr .1 48hr s 72hr s . ★ Unde t e c t a bl ebyt hega s ・ f l o wc o unt er . Tabl e3. The c o nc e nt r at i on ofc hl or o f or m par t i t i o ne d me t abo l i t e si nr i c e pl a nt s af t er appl i c at i o nofa 2 pl a be l l e di ns e c t i c i des . Te s tc ompo unds I Par tofe xt r a c t i o n Ti meaf t erappl i c at i o n 6hr s . 12 4hr s . 14 8br s . 17 2hr s . Dat ae xpr e s s e dasi ni t i a lc o mpoundspe rf r e s hpl a ntt i s s ue . we r ee xpr e s s e da si ni t i alc ompoundspe rf r e s h pl antt i s s ue s . Di me t hoat ee xhi bi t e dt hehi ghe s t co nc ent r at i o ni n bot h par t s ,and f o l l o we d by Di s ul f ot on. Co nc e nt r at i o n ofc hl or of or m pa r t i ・ t i one dmet abo l i t e si nt he ae r i a lpa r t st e nde dt o bet hehi ghe s tat4 8ho ur saf t ert heappl i c at i o n andgr adua l l yl o wer eda f t er war ds .Co nc e nt r at i on 2 0 ofi t smet abo l i t e si nt her oo tpar t sl o we r edwi t ht he l aps eoft i meaf t e rt hea ppl i cat i o no fDi s ul f o t on, Vami do t hi on,Thi o me t o na nd Me c a r bam exc e pt Di me t hoat e . Re s i dualamo unt soft hei ns e c t i c i d e sa ndt hei r me t a bo l i t e si ns o i lat6daysaf t e rt heappl i c a t i on ar e I de s cr i be di nTa bl e4.Ther e s i duala mo unt s 防 虫 科 学 節 3 6 巻 -I Tabl e4 . Theamount sofr adi o a ct i ve mat e r i al sf o undi nt r eat e ds oi l s( 2 0 0 g. )at6days af t era ppl i c at i o n. Te s tc ompo unds I Chl or of or me xt r a c t s I Wat ere xt r ac t s Soi l ・ abs or be d s ubs t anc e Tabl e5 .I ns e c t i c i da lt e s t sofs ys t e mi cor ga no pbos phor usi ns e c t i c i de st ot i l eS mal l e rbr o wn De l ♪hac o d e ss L y i at e l l a F. )f e d on r i c e pl ant st r eat e d wi t ht he pl a nt ho ppe r( i ns e c t i c i de s . o fc hl or o f o r mpar t i t i o ne dme t a bo l i t e sofDi s ul f o t o n and Di me t hoat e we r e ver yl ar ge ,andf o l l o we d f ol l o we dbyMe c ar ba m. Adul t soft hes ma uerbr o wnpl a nt ho ppe rwe r e by Thi o me t on,Me c ar ba m and Vami do t bi o ni n de cr e as l ngOr de r .Ont heco nt r ar y,s o i l a bs or be d s ubs t anc e sofVami dot bi on wa st hel ar ge s t ,and f e d on t l l er i c epl a ntt r eat e dwi t hno n・ l a be l l e d s a mei ns e c t i c i de s .Ta bl e5S ho wst hepe r c e nt age off al l e ni ns e c t s at2 4and4 8hour s af t e rt l l e 21 防 虫 科 学 第 3 6 巻 -Ⅰ appl i c at i on. Ther i c epl a nt st r e at e dDi met ho at e e xhi bi t edt hebe s ti ns e ct i c i da le f f e c t ,andf ol l o we d Vami dot hi o na ndDi s ul f o t on.Ho weve r , Thi ome t o n andMe c ar bam ha da l mos tnoi ns e c t i c i da le f f e c t As s e e n・i n Tabl e s 1 and 2,ho we ve r ,t he pe ne t r at i onandt r ans l o c at i on ofVami do t bi oni s r at he rs l o werasc ompa r e dwi t hDi me t boa t ea nd Di s ul f ot o n. f ort hes mal l e rbr o wnpl a nt ho ppe r . l l ) Ac c or di ngt ot heo bs e r vat i onofMi yat a( 1 9 6 5 ) o nt he pe ne t r at i on ofvar i ouski ndso for ga no・ pho s phor us i ns e c t i c i de si nt ot he pl antt i s s ue. whe nt hei ns e c t i c i de swe r ea ppl i e do mr i c epl a nt s wi t ht her oo tdi ppi ngme t ho d,S o me i ns e c t i ci de s pe ne t r at e donl y al i t t l ei nt ot hep l antt i s s uei n s pi t eofi t shi ghwat e r ・ S ol ubi l i t y, a nds t abi l i t yof c he mi c al s and pe ne t r a t i on me c ha ni s m gr ea t l y i nf l ue nc e d on t hepe ne t r at i onoft hec he mi c a l s i nt ot hepl a ntt i s s uebe s i de st hewa t er ・ S o l ubi l i t y. Ont heot he rha nd,Di s ul f o t on pe ne t r at e da nd t r ans l o cat e dr e a di l yi nt ot hepl antt i s s ueal t l 1 0ugh i twa s al i t t l es ol ubl ei n wat e r .Ase vi de nc e d Di S C u舶i on l thasbe e ns ai dt hata l lout e rs ur f a c eo fpl a nt bo dy c an a bs o r b var i o us ki nds o fc o mpounds unde rc er t ai nc o ndi t i ons . The r e f or e,a sf ort i l e pene t r at i o nofs ys t e mi ci ns e c t i c i de si nt ot hepl ant bo dy,i ts ho ul d be t a ke n i nt o c ons i de r at i o n whe t he rt he s ur f a c eo ft he pl ant bo dy ha s ada pt abi l i t yf orabs o r pt i o no ft hec ompo unds ・ I ti sc ons i de r e dt hati ns e c t i c i de spe ne t r at epl ant i at hes amer o ut ea s bodyf r om t her o ots ys t e mv wat eroror ga ni cmat er i a l s . Whe nt he i ns e c t i c i de sar ea ppl i e do n wat e r s ur f a c eofapaddyf i e l d, t hei ns e c t i c i de sar enot onl yabs or be dv i ar oot sbuta ls o mo ve supwar d a l o ngs ur f a c eandi nt er s t i c esofs t emorl e a fs l l e at h bycapi l l ar i t y,andar r i ve si nt hes t e mo rl ea ve s unde rs uc h as pe c i a le nvi r onme ntoff l oodi ng ( I s i i and Hi r ano,6) 1 9 6 2 ,Tomi z a wa, m l 9 6 3 ) ・ Ther ef or e,t he s ys t e mi ci ns e c t i c i de ss ho ul d be cont a ct e ddi r e c t l y wi t ht hepl a ntbo dyi nor de r t oe xpe ctt hehi ghe s te f f e c tf ornoxi ousi ns e c t s ・ Me t c al f( 1 9 5 6 ) Vr e por t e dt hato neo ft hef a c t or s t oc ont r olt hepe ne t r at i on ofc he mi c al si nt ot he pl antt i s s uewa si t swat e r ・ S o l ubi l i t y,andt hatany c he mi c als houl d have t hes o l ubi l i t y eno ughf or e na bl i ng i tt omovef r e e l yl n pl antt i s s ue s ・I t wasr e por t e da l s obyMe t c al fe ial l( 1 9 5 7), 1 0)Da vi d ( 1 95 2 ) 3 )andRi dgwa ye tal ・ 14 )( 1 9 5 6 )t ha tt r ans l l o c at i onofc he mi c al si nt ol e a ve sa nds t em de pe nd upont hel i pos o l ubi l i t yandt hats ubs t anc ehavi ng wat er ・ s o l ubi l i t yr e adi l ype ne t r at et hepl a ntt i s s ue v i at her oo t . f r om t heabo ver e s ul t ,t het r ans l o c at i ngr at eof t hec he mi c a l sc oul dnotbej udge df r om onl yi t s wat e r ・ S ol ubi l i t y. The amount of r adi oa c t i ve me t abo l i t e si n Di me t hoat ewast hel ar ge s tatt hea e r i a landr o ot par t sofr i c epl a nt s ,and t he amo untgr a dua l l y i ncr e a s e d wi t h t he l a ps e of t i me a f t e rt he appl i c a t i on.Fr om t her e s ul t ,i ti spr es ume dt ha t Di me t hoat ei saf as t ・ a c t i ng I ns e c t i c i deowi ngt o r e adi l ype ne t r a t i o nandt r ans l o c at i o ni nt hepl a nt t i s s ue s .Ho we ve r ,i ti ss ugge s t edt ha tDi me t hoa t e c aus e sr e adi l yphyt ot oxi c i t yt os o mepl a nt ss i nc e i tpe ne t r at e sa ndt r ans l o c at e sveryr a pi dl yi nt he pl antt i s s ue . Sat oandMi ya mo t o( 1 9 6 7 ) 1 0 ) r e po r t e dt hef o l l o w・ i ng r e s ul t soft he f at e ofDi me t hoat ei ns oi l : Di me t boa t et r a ns l o c at e si npl antt i s s uewi t hs o i l moi s t ur e, butt het r ans l ∝at i ngr at eo fDi me t hoat e i sr at he rs ma l li nt hec as eofi mmova bi l i t yo f wat e re ve nwhe nt hes o i l c o nt ai nss uf f i ci e ntwat e r . Af t er war dsDi me t bo at ei sa c c umul a t e dwi t ho ut wat er ・ s o l ubi l i t y of t he c ompo unds us e df or t hi se xpe r i me nti sa sf ol l o ws:Vami do t hi o n2 0 g, Di s ul f ot on2 . 5mg,Di met hoat e2 5 0mgpe rl O OmJ ofwat e rr e s pe c t i ve l y・ Thi o me t o ni spr a c t i c al l y l i ght l ys o l ubl e i ns o l ubl eand Me c ar bam i svery s i nwat e r .Thus ,i ti spr e s ume dt hatVami do t hi o n be i ng de c ompo s e d and s o Di me t ho at ec a us e d phyt o t o xi c i t y. havi ng t hehi ghe s twat er ・ s o l ubi l i t y amo ng t e s t c ompoundsi sgr ea t l y abs or be da ndt r ans l o c at e d v J ' arootsyst e mlbas e dont her e por t sbyMet c al f e Lat. 1 0 )andDa vi d. 3) appl i e d on wa t e rs ur f a c eofpoti n whi c hr i c e pl a nthadbe e nt r ans pl ant e d.I nge ne r l,or a gano . phos phor us i ns e c t i c i de s appi t e di n paddy f i e l d a l mos tr e mai nont hes oi l s ur f a c ewi t ho utdi f f us i ng 22 Tor ni z a wa ( 1 9 6 3 ) 1 7 )r e por t e dt hatdi me t hylSi s o pr o pyト2 s ul f i nylpbo s phor ot hi o l a t ei sa bs o r be d v i al e afs he at ha nd t r ans l o c at ei nt ol e a fbl ade , buti ta l s omo ve st or oo ti naf ai r l ya mount ,whe n 防 虫 科 学 節 3 6 番-I i nt ot hel o werl aye rofs oi l : I nt hi se xpe r i me nt ,undert hec ondi t i on t hat wa t e r wa s exc e s s i ve l ys at ur at e d, r a di oa c t i ve me t ab ol i t e sofDi me t hoat emove dt ot heaer i al pa r t s of r i c e pl ant ver y r a pi dl y.and we r e ac c umul at e di nt hel e afs he at handl eafb一 a dei n . Fr o m t he s er e s ul t .i ts e e ms al ar ge amount agai ns tt hes mal l e rbr ownpl ant ho ppernott obe duet ot hea c c umul at e damo untofea c hc he mi c al s , att heae r i a lpar t soft her i c epl ant s .h ge ner al t hei ns e c t i ci dehavi ngnat ur e sofs t r ongpe ne t r at i on andt r ans l o cat i o nhasal s ot hehi ghe s ti ns e c t i c i dal pot e nc y. I ns e c t i c i da lef f i c a cy o ft hec t l e mi c al s wasi nac c o r d wi t ht her es i dua lamo untoft l l e pr o babl et hatDi me t hoat ewasnotonl yabs or be d t hr ough r o ot sbuta l s ope ne t r at e dt hr oughl e af s he at handt r ans l o c at e di nt hepl a ntt i s s ue s . c he mi c al si nt l l eae r i a lpar t soft hepl ant . A l ar ge amountof c hl or o f or m par t i t i o ne d me t abo l i t e sofDi me t boat ewa sde t e c t e di nt he Theabs or pt i o nandt r a ns l o cat i o noff i ves ys t e mi c i ns e c t i ci de s ,Vami do t hi o n, Di s ul f o t on, Di me t hoat e , Thi o me t o n and Me c ar ba m i nr i c e pl ant swe r e qua nt i t at i ve l yandqual i t a t i ve l ys t udi e dbyus i ng 8 2 Pl abe l l e di ns e c t i c i de s . Ri c es e e dl i ngs we r e c ul t ur e di nt hepa ddyf i e l ds oi lc ont ai ne di nt he gl as spe t r idi s h,andt hel abe l l e di ns e c t i c i de swer e appl i e dont ot hes oi ls ur f a c e . Re s ul t soft hee xpe r i me nt ss ho we dt hatDi s ul ・ f ot o nwasabs or be dr api dl y by t her oot soft he r i c es e e dl i ng,andl ar geamount sofDi me t hoat e wasabs or be d by t heae r i alpar t saswe l lasby t her oot s . ae r i a landr oo tpar t sasc ompar e dwi t hot he rt e s t c o mpo unds . The r e f or e ,i ti s pr e s ume d t hat Di me t hoat ewasde c ompo s e di nt hepl a ntt i s s ue. 1 I o we ver ,Mor i ka waandSai t o( 1 9 6 6)1 2 )andSat o a nd Mi ya mot o( 1 9 6 7 ) 1 5) r e por t e d,asar e s ul tof s t udy on me t abo l i s m ofDi me t hoat e,t hat t he c o mpoundcanno tber ea di l yde c ompos e di nt he l e a ve sofr i c epl a ntands oi l . Theamo untofr adi oa c t i vemat er i a l sofDi s u1 f o t o n,Va mi dot hi on,Thi ome t o n and Me c ar bam i nt her oo tpar t st e nde dt obeke ptal mo s tc ons t ant o rs l i ght l yl o werwi t ht hel aps eoft i meaf t e rt he a ppl i c at i o n.Fr om t l 1 0 S er e s ul t s , i ts e e mspr oba bl e t hatt her o ota bs or bf ur t hert hec hemi cal st o s uppl e me nt t he de c r ea s e d amo unt af t er t he mo ve me nto fc he mi c al si nt ot heae r i alpar t s , s i nc e amo untoft hec he mi c al supt a ke nf r om r oo ti s a l mo s ti nvar i abl e . Ac c or di ngt ot hei nve s t i gat i o nofr e s i duei ns oi l at6da ysaf t ert heappl i c at i o n,c hl o r of or m and wa t e rpa r t i t i o ne dme t a bo l i t e sofDi met ho at eand Di s ul f ot o ns t i l lr e mai ne di ns oi li nal a r geamo unt . On t he c o nt r ar y,t he amo unt ofc hl or o f or m par t i t i o ne dme t a bo l i t e si nVami do t hi o nwass mal l butt heamo untofs oi l ・ a bs or be ds ubs t a nc ewa s l ar ge . Ge t 2 l i ne tal .( 1 97 0 ) l )r e por t e dPho r a t eappl i e d i ns oi ls ho we dgo o dpe r s i s t e nc e , a ndt ha ts ul f oxi de a nds ul f o neofPhor at ewe r es t r ongl yabs or be d bys oi lc o mpone nt s . Di me t hoat ehavi ngna t ur e s o fgo odpe ne t r at i o n and t r ans l o c at i o nwasbe s t i nt hei ns e c t i c i da le f f e c tagai ns tt hes mal l e rbr own pl a nt I 1 0 ppe randi twa sf o l l o we dbyVami do t hi o n andDi s ul f o t on.Thi o me t o nandMe c a r ba mpr ove d t obepooref f e c t . Thi si sc o ns i de r e dt obedue t ot hei ns e c t i c i da lef f e c ti t s e l fo fea c hc ompound ・Summar y I twasas s ume dt hatabs o r pt i o nandt r ans l o cat i o n ofDi me t ho at ei nr i c e pl ant swer e ext r eme l y e as y.Whi l et r ans l o c at i o nofVami dot hi onwhi c h hasanat ur eofhi ghwat er ・ s ol ubi l i t ywasf ound t obes l o w. Thet r ans l o c at i onoft heche mi c al st ot heaer i a l par t swer eas s ∝i at e dwi t ht hei ns e ct i ci dalef f e c t s t ot he br o wn pl ant ho ppe r whi ch at t a c ks r i c e pl a nt s . Ac knowl e dge me nt 8:Wewi s ht ot hankPr of . Ki s a bul yat o mi ,Fa c ul t yofAgr i c ul t ur e,Nago ya Uni ver s i t yf o rma ny he l pf uls ugge s t i on dur i ng t hec our s eo ft hi se xpe r i me ntandal s ot oSumi t o mo Che mi c a l sCo. ,Lt d. ,Shi o nog i & Co . ,Lt d. ,Ni ho n To kus buNoya kuCo. ,Lt d.andTake daChe mi c al I ndus t r i e sCo. ,Lt d.f o rpr ovi di ng us s ynt he t i c i nt e r me di at e soft he t e s tc he mi ca l s . Fur t he r , t ha nks ar et e nde r e dt o Mr .Mi c hi o Endo of Sumi t o moAt omi cEn色 r gyl ndus t ie r sf orhi sus e f ul advi s e sons ynt he s i sofr adi oa c t i vec ompo unds . Re E e r e nc e S 1 ) Be nne t t ,S. l L:Ann. A♪♪L. Bl ' o l . ,3 6,1 60 ( 1 94 9) . 2) Chi ng, H. T. ,and E. W. Cl ar k:) .Ec o n . 2 3 防 虫 科 学 EnL o mo t . ,5 4,1 2 2 8( 1 9 61 ) . 3) Davi d,W. A. L. :An n .AL 1 3 ・ t .Bz ' o l . ,39 ,2 0 3 く 1 9 5 2 ) . 4) Get z i n,L W.a ndC. 班. Shank,Jr . :I . Ec o n . Ent o mo l . ,6 3 ,5 2( 1 9 7 0 ) . 5) Har r i s ,C. R・ :I .Ec o n . Ent o mo l ・ ,6 0 ,41 ( 1 9 6 7 ) . 6) I s hi i ,S.andC. Hi r ano:' J a ♪.I .o fA♪Pl . EnL o mo t .Zo o l . ,6 ,2 7( 1 9 67 ) . 7) I yat omi ,K.andT. Sai t o: Expe r i me nt a l r e s e ar c hf or t he s ys t e mi ci ns e c t i c i de ,4 ( 1 9 6 7 ) . l ・ .Pat . ,8 3 5,1 4 5( 1 9 5 4 ) . 8) J onas ,H. :Ge l f ,R.L. : Se c ond i nt e r nat i o na lPl ant 9) Me t c a Pr ot e c t i o nConf e r enc e,Fer nbus t2 3( 1 9 5 6) . 1 0) Me t c al f ,氏.L,E.M. St af f or d,T. R. Fukut o 第 3 6 巻 -I B. Mar c h:I .Ec o n.En t o mo l ・ ,5 0 .2 0 5 a ndR. ( 1 9 5 7 ) . l l ) Mi yat a,T・ :Pr o c .Kans aiPl .Pr o t ・So c ・ ,7 , 4 0( 1 9 6 5 ) . 1 2 ) Mor i kawa,0.andT. Sai t o:Bo t y uKa gak u, 3 1 ,1 3 0( 1 9 6 6 ) . 1 3 ) Pi anka, M. :Che w. Z nd・ , Mar c hll, 3 2 4( 1 9 61 ) ・ 1 4 ) Ri dg way, R. L, D. A. Li ndqui s tandD・ LBul l : J .Ec o n.En t o mo l ・ ,5 8 ,3 4 9( 1 9 6 5 ) ・ 1 5 ) Sat o,Y.and∫ . Mi ya mot o:Pe s t i c i de and Te c bni que ,1 6 ,2 3( 1 9 6 7) . 1 6 ) Te i t z ,H. :Ho f c he n・ Br ief e,7 .1( 1 9 5 4) ・ 1 7 ) Tomi z a wa,C・ :J a ♪.I o fA♪ PL ・Ent o mo L ・ Zo o l . ,7 ,1 4 0( 1 9 6 3 ) . 1 8 ) We ddi ng,R. T.and 氏. L. Me t c al f : Bo L a〟 ・ Gaz . ,I l l,1 8 0( 1 9 5 2 ) . TheCompar at i vePher omoneAc t i vi t yofAc e t at e 80ft T nB at l l r at e dA lc o l 1 0 1t oMa) e BOEt he Al mondMot h.Shoz oTAKAHAS Hl ,Chi ka yos hiKI TAMURA and Yas umas a KuwAHARA( Pes t i ci de Res e ar c hI ns t i t ut e,Col l e geofAgr i c ul t ur e,Kyot oUni ve r s i t y,Kyo t oJ apan)Re c e i ve d Januar y 2 0,1 9 71 .Bo t yu ・ Ka gak u36,24,1 9 7 1 .( it w hEng li s hs ummar y2 6 ) 5 . ス ジ マ ダ ラ メ イ ガ に対 す る性 フ ェ ロ モ ン類 縁 化 合 物 の 活 性 に つ い て ★ 高橋正三 火彬,桑原探正 ( 茄都大学 凸学瓢 北村 投薬研究施設)4 6 ・1 ・2 0 ・受理 ス ジマダラメイガの蛾は 性 フェロモン郊緑化合物に対 して, フェロモンの場合 とは 比較にな らな いほ どの市娘庇ではあるが フェロモンに対す ろ反応 と同様の挙動を示す. それ らの化合物の中では 柑 こ,c t s -7 t r i de c en1 1 0la c e t at eと c i s l 9t e t r ade c e n1 0 1a c e t at eに対す る反応が銃著であった. 既 に 鞭 岱 した よ うに, ス ジ マ グ ラ メ イガ ( t he l ・ ac auE e t L aWal ke r )の性誘引物 al mondmot h,Cad ェロモン活性の低い化合物 も含 まれているため節一次 校定 として,Bu t e na ndtらの方法に準 じて定性的なL L i 質は c i s 9 ,L r ans l 1 2 t e t r a de c a di e n1 01a c e t at eで あ ることが明 らか となった1 ) . 物検定 を以下のように行なった2). 羽化後 3日日のス 今【 乱 われわれは性 フェロモン輝線化合物である高 径1 1 c m,高 さ 7 c m)に入れ室温 2 80土 lo C 条件下で 級不飽和 アル コールお よびェポキシアル コールの酢髄 検定 を行なった.供 試 化 合 物 を細いガラス榊 こつけ エステル3 6 超を用いて生物検定 を行ない,それぞれの フェロモン活性 を調べ,あわせて化学構造 と活性 との ( 約3 0 0 -5 0 0 F L g)ふたにあいた穴か らシャーレの小に 5 -3 0 秒以内に超 を特徴的に拡動 させて動 挿入 した.1 関係 を解明す ることを目的 として以下の実験を行 なっ きまわ る反応 を示す虫数 を数 えた. ジマグラメイガ末交尾堆1 0-2 5匹を腰高 シ ャー レ ( 山 2 ) 第二次検定 :節一次検定で活性を示 した化合物 た. について,以前報告 した フェロモン検定法E i P l l i を班用 し 実験材料および方法 供 試化合物 :検定に供 した不飽和 アル コールおよび て一定 血 ( 1 0 0 pg あるいは 1 0i L g)の化合物に対す ろ pe rc e ntr e s po ns e "を求めたS ) . 雄の " ェポキシアル コールの酢酸エステルは当研究室で合成 Ja c obs o n 博士 く U・ S・ D・ A・ ) された もの, お よび M. よ り捉供 された もの ( 袈 1において化合物の肩に *印 をつ けた) を用いた. 生物検定 : 1 )第一次検定 :供筑化合物が多 く, フ +本 研兜の一部は文部省科学研究資によった. 2 4 実験結果および考察 髭 1に示す3 6 種の化合物 を第一次検定にI Jtした. 〟 0 0-5 0 0 pgの試料に対 してス ラス棒の先に付着 した 3 ジマダラメイガ雄が反応 した 化合物には ○ 印 を つ け た.それぞれについて活性の強度 を表 2に示 した.分
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