Report of the sixth session of the ecological group

*Twtr-T-_.r' I' .:.x A N Iz Arto N @ oRGANIsAT'[:':r,:l;:i-- * sANrE ONCIIOCERCIASTS CONTROL ?ROCRA^[IMS IN TITEVOLTA RTVER DASIN AREA rirre ou Lt rTE coNTRE L'oNcttocERcosE DANs LA &EcloN DU ItAsslN DE LA voLTA ISORY galoo COIOTI,TTEE 14 June 1985 SESSION OF TUE ECOLOCICAL GROUP colrrENas OCP/EAC6.4 oAI0I!trAL! E&{SLISB Pcrrue 2 3' 7 7 I I I NEPOBT OF THB SIXTB 0N .aa.a..a.aaaa.aaa.a.a..aaa.a.a.aaaaa'i TION OP Tm ACEIIDA ............o............... COIEROL SITUATI0N Idt{D STATUS Or BESISTA}ICE tt{ TflB P[OGB,A}06 AIBA . . . .'. .. .. . ... . o' "'''' " " 0L001CAL lOlfIT0RIl-lG .. o t......... '.o" " c " " ' r " I{TDEHT UOIIITO&TNO DATA VERIFICATION 0f ALTERNATM I^ARVICIDES D...4... r.... fSHf ON ADIILTICIDLIIC TRLALS .. ..... . .. o . .1. ' o. " ' ICAL IHPACT Otr PESIICIDES USED IH AREA OTUE}' THAII BY OCP ... o.... oo......... o..r..'.o.c "" 'c' BLICATIOH OT OOP ECIOLOOICAL ACTIVITIES .......... OTHER HATIEBS ... .. . .. ............. .. .. " " " ' r Mf8 TOR BBXT IgETINC . a a a aa a a a aa a a a i t a aa a o AL 0f nEPOf,T ..to.....r....'..o......t.""'o 3 3 & 6 t I .4 ,'d .J{ ! I -J I ,l ,! .,t : I.IST OF PABTICIPA}TTS PEOTOCOL TOR TESTING Ttsg UEDIUH TERH EFTECf,S OT CA&3O$UT.TATT ON TIIE }ION-TA&,CET TAUNA OT filE SASSAIIDRA BIVEB (TVOEX CEAsI} l -i 1 ,{ nI Eql o@/gAc6 Pqto 4 Group therefore reconnended that, durlng the nonLtorlng of the ion and oalntenance phaeea, more lntenetve studles than exlsted present oonltorlng acheue be undertaken at a ferc aelected oltes n8 above crlterla. In the preeent OCP araa, Sabarl on the Otl, and Danaogoro oD the Uarahou6, Seolen on the Saaeandra aud the Pont tc on the L€raba ahould be roalntalned. Sultable altea on the Pr$t rtta " and the Oueo6 or Mono ehould be ldentlflsd f,or the 'of the Southern Eltenslon. Group noted the exteut of nonltorlng that YaB belug undcrtaheo l,n t$b tloa atirtu!.a Extsaelon area shere Lt recomended thatr ln future, four altes 1r. cotrd lg" thr! !.9. r(pntagr tepOrt tOdP,E'ns dtefr r a0. toa talnf rtttbg .nfFthra ldentlflad for entmologlcal atudy as trell aa for fleh, eepeclally to accouat the fact that the rlvera of the Nlger saterohed flos frqe ralnforeat lnto the aavanna, contrary to those of the Volta Blttr 1r. nrtloral tcrea ehould conttnuc to follor the eetdbllahed uon{.torlng uhlch yould alcrt OCP to aay uocxpected chaogoe. tlaa natloaal Eeaoe 1n thc lntenslve noaltorlng atudles on e*ch of tha eeleetedelp elt ocr cal group (the present hydroblolo6lot eupportcd by antha nada reepourlbtllty for uudcrtaklng eheae ehould rost wl.th gha aorltorlsg coordlnotor) . tcD. Oroup repaated the reco*".endatloo ln the report of lts flfth aese*sn eaaasaoGat of tho ecologlcal ecpccte of tha Progrsamo abould be loulng the rcqueet of the Group la the report of lta flfth seoeton 63) ttrat the ronltorlng date be lndepeudeatly verlfled, r draft eubultted to lt by the Salford Unlveralty tean, whlch had,beenle for aralbtlng OCP ln prevloue analyele of uonltorlng deta. Ttsr,a rt covered che work ao f,ar carrlod out. eroup uas taforued that Btatlatlcal analyala of the routrlne date ovcr the past ton years had been uade dlfflcult becaure of the factotrl thc lnhcrent varlabtllty la abundance of feune ln reaaoaal ttoplcal rLvere; laprovencnts ttr taxonooic knouledge; taprovencnto la tralnlng and changee 1o otaffing; varlable pcrloda betrcen treatnent and collectlon; rcductlon of uonltoring frequency; lerge dlffercnces ln rlver flor betreco ycsrs; often lnauffleleot pretreatEent dataS other rater uaea and peetlclde treat*lenta. 0poreq tly, the exauple of loee of lesa abundaat rltr 6Eqat oapeclally now to esEure that all the actlvltlcs csna€Gced wlkh thr lnor lntcnllvc uooitorlng and.thc teatl.nS of uou lervlclder be propcrl'y cod!d MONITOEJNG DATA VERITICATIONB:. ed to fewer aaoplee belng taken and a long . Grelt care l,o starlstical technlgue and G esrentlel. apectee tn eauplec could be perlod of rcduced loBerpretatloa rle thrrcf lnceotl collcct Sunh eff tB sere eecondary to h/drologtcal and other envlroriuentil fsc8ors. Thr lon ln aonltorlng frequency had neanc that otatlstlcal coupar!,oonadlfftcult and perhapa unoecessary at uost, eltes. fhe largi noted batneen seaaons and yeare eupported the recoouendatlon ln 15 that only a few (three to four) eites be retalned for ed nonltotlng exereieee ln the present Prograone arca, asd t[at moredatr uould energe fron intenelve aurvcya ln the southern and tott61on are88. rr€ila ,Eoot 21. rroFk vadtatr paprgra coB,6ncr noiqlngf IfGl.tcru eet {'f t coltolat trtr,&en colff,lc product 3lE H' rh6 24i Eofilio 0CP/EAC6.4 page 5 lng these polnte ln nlnd the Group uaa lnf,orued that the atatLettcalged the prevlous atudles in ehowlng that the appllcstlon of e had a aubtle effect on rlver fauna, shlch was ouly clear at a fewpolnte that had regular nonl.torlng and pre-treatnent ;!4fo4natton." kro rlth that of Danangoro oo the Harahou6 to try to luprsv. th€ of a pollutlon lndex wlth che later data oa chlorphoxtn end toblologlcal tean only after thc analyetr had baen coaploted and rcvlged ln a foru whleh sould asalet theu la thelr uork. Group aleo reconrnended t,hat, 1o preeentlng the analyelo of, data, lnforraati.on to be provlded by the.progra&ne on tha lorvte*deat the glvea eltc sbould be clearly atated ln the roportr of, ttro oar!8. rT OT ALTERNATIYE I.ARVICIDES Group nae pleaeed to note the progrcEB nade lu teotlng aluonaati,vo and atudled the results of, fleld tr181s of coopounds recouneudod bytcd that a nuober of pyrethrolda had ehown pronloe, but thaE f!,eld- 1d oot be puroued lmedlately aa they dld not appcsr to bs aay Eoro than Talcord, the forruulatlon of peruethriu shlch had beea ttsefleld trlals thle year. Azaoethlphos yaa aucceeaful but tha foruulatloos tested ln rlver trlals looked particulartry proalcdng er ectlve at half of the doeage rate for Tekner aud, furthor, dld nofdlluted rtth water before appllcatlon. Elght Insect Grotrtb(rGRe) had been tested, three of rhlch rrae vGrI/ proalrlng but, ooo agalnot s.dqgnosuu. Although aatlsfled clth the level of roaulte of a of thle product on the non-target organtrne, the Group ootsd ghrt had aor to be uade of lta offect on ctuatacel ae recomcnded. be carrled out ln a rolnl-gutter or tcuk trtal. Bleld rtudloa be undertaken at thb end of the ralny Beeson chcn thc wator'lavel 22, Group recoonended that thls statlgtlcal rork be cootlnued.Poitlcu attent,too ahould be pald to (a) explorl,ng Eurttvarlate rnalya[a go repoval of unusual aanplee, rerooval of lesa sonol,tlve taxe Lsd wlth rlver hetght and turbldity would loprove the plcturs of, cffecte; (b) aeekX.ng eorrelatlous betuaen flch crtches cndt of condl.tlon rtren applled to a coapletc hydrology data eet;(c) rual trB rrc data on fleh coadltloo la Ghana; urd (d) comblnlog tho daEafrF E 23, Group recounerded that the selford Report be oadc evellabtra to tbc natlonal triltthsn nah'ttinar P. 25, coffound8Ac. rt crlrls cffactl aubloct product B.L. H- it rfii8 th) rE .D.F bIhlr pou ehoutit a 6 not suitabre for operatlonal uae due to f,oraulatlor dr,fftculBtea. turil ca tosr out of the four tested, ehorred real prouloe. one of tha eta rtO of rttiu, veruGctln, had been droppad due to lto htgb huurn toxlclty. 26. Group noted that ln the largeecale rlver crlsl pennathrr,a had bean ef fLctl .t ur; r preferably oa the Saasandra ln Ivoiy Coaat. 29. on the Group racormended that the oonltorlng dote cuncatly belng colloctcd re Rl.ver ahould be evaluated lu re3peet to thc rccovcay of th. flish luvertobrata feung to levels cooparebla to those prtor to the 27i. eUal,trnt 8E8alofl (a) (b) A 28, ahould Caast e[,fuctr r(Yor. pprdct of ehe condlti r:iaeona atuallab pal{rgra 30. contLn foruula r€ sssaton grf,6uPB 31. A n$nrt8r pterent tltiot trr tflre f1s rLvcrs eroqP e thla ot Id+eoarc wltldh blrds. Gtogp edl raln epcclee UiQd ln d bdtte Pfoduct Frogr tJhlle Group recomended the folloulng contlngenclec for couplete of permethrl.n as ao operatlonal larvlclde for use durlng the ralny re tenephos reelstance calle for a replaeGnent. -guttcr or tank te8t8 ehould be carrlad out on tho effect of the of rlver tredtrent conceotretlone of peruethrln on ahrlnp eieo. The teet antnalg ehould be held for at leaat 48 hours ln reeted tlater folloulng the teete to evaluate realdual effecta. tlou of a anall rlver rlth aultably abundaat populatlons of ehrlops d be adequstely raopled and uged for the analyeLc of the eff,ect of thriu otr the ehrlnpe. lnfornatton on the effect oa flah fry of tha peruethrln troatneatf obtaloed. Dr Ltv8que could acsl.rt Hr Ksoaouo Traor6 of the lvory roblologicrl teao ln thlr reapect. The Group ruggeated that the ftoh atght best b6 tcated,La tankr racher than iu crge. ln the trial. mraee data ahould be nado avallablc to tha Group. Thc uro aandra for e large-ecale fleld trlal, e.g. of, carboaulfanr rhould bc aI oa tho r€covery of tho faune Bo e olttratloo thst uould ellotr a e evaluatlos of lte ef,fect8 on nortargee opecLee, ae rall ao tha{ty of a eaall rlver test Blte for ehrlop analyalc ac dcocrlbed ln 27 (b)o . Group, chllc pl.eaeed to note that th€ larvlclde screeulng Progrlno. to be eupplted lrlth a raoge of nes produitl and a range of oua of these products ftoro the cheulcal tuduatryr onphael:ed the atloa of the Expcrt Advleory CotrDlttGs nblch stres8ed at l,te ftfth hat every effort ehould be glven to ld€ntlfylng coupounde of cheatreeL ffercnt f,ron those currenEly used la the v€ctor control opGratloB6. loed protocol (aee Annex II) for regleterlng the lopact on t otganlsma durlng the oporatlonal teetlng.of ner producta wae to, and approved by, the Ecologlcal Group. The Group recomended protocol be ueed for the propoeed test of, carbosulfan, provlded thee teat $aB carrled out ln tenka rathcr thau slth eaged flsh ls tho thet attedtlon was aleo gl.ven to the effect on crusteG€eE8. tho ended the Programe fot provldlng the blbllography on carboaulfao et ,e and euggeoted th&t contact bc rrde rlth the Patuxest tlltdllfe Ccntre, ll9 Flsh and t{lldllf,e Servlce, Laur61, Haryland 208}0p U$At have aome addltlonal lnforoatloo on the tor(lclty of cerfoqauLfon on a droup also recounentled thtt the carbogulf,ar trteloGEf6rrfea out ondrl r other than the Saaaandra (aee paragraph 29), Lf an alternqtlve rae avalLablo, but eppreclated tha logtstlcel problene feclng thelocat 1 PEogr ln thla'reapect lewlng the current situat,ton regardlng opertglonal lanrlcldea, tlte aldered that, wlth four product,e nos avallablo and usebla under dry seaoon condltlona and generally effectlve agalnat foreat and savanBa the Progran'ne adequstely uet the larvlcldel-crlcsrla for uovtng, lato alon areaa. The Group recomended that pcruethrlo ghould oaly be alny aeason condltlone (eee paragraph 26) peadlng the rvsllab{.llcy of all-aeaeon pyrethrold fornulatlon. The search for aad teattng, of new should contlnue ae hiretofore. It ra3 thc Grouprr vlcr thet'the ehould uge the larvlclde rhlch haa u1n1!0ul cnvlronoeatel lapact ectlve ln cootrolllng the target organtene. 3e. dhd-,er 1 i nI thisr hlghllghted the dlfflcultles uhlch would have to be faced 1n the ret lnvertebrate uonltorl.ng and the epaclal adultlclde dleperaal provlded a very detalled and couclee plcture of the triale. The thaE, prlor to alry addltlonal adu1tlcldln8 trlalr, ctudleEl coopleted on the adult reetlng ettea ln rlverrlde areas. ICAL IPACT OF PESTICIDES USED IN ANEA OTHER THAN gt OCPE. G. 33. oaln [a act[I[tf cottrpl eelFon. atf[lae 6rfppr shilutd dclil, ouEr 34. tatt Grpug exfccEod chtL fe Gr6up sybBiEs. unl,ltnly, 37. bE, ao -6gtde dr;tnr ocP/EAC6.4 page 7 ON ADI'LTICIDING TRIALS Programne recognlzed that adulticlding rould clearly not replace Ehe cldlng actlvlty buE could be a poealble cooplenentary vector control could help wl,th retnvaeton control and as an early !ret, Beaaon . Adultieldtng trlala had been carrled out aa planoed and Group hed tckeo uote of the docunent wrt tten for IUCN by Dr t(oman whlch rcvlewed the use of other pestlclder ln the OCP area. fhe Ehrt 10 the FAO study 'Agrlculture towarda 2@0' lt rsas hat fooa productton sould have to be lntenetttcd whlch could uoanllaer aud peattclde uee would trebla by the year ?000. AIao, aooE eou[trr,cs wcre uslng broad Bpectrun pestl.cr.des. fha Eco],oglcal pleaaod to leern that the Sahellan couut,rles wero generalLy ewaro of l{aJor contef,lnatlou froo other peattcldes ln the OCP area seerod exccpt la the delta ronea and ln the eveot of abuelvo handllng. Ecologlcal Group felt that the Progranm had the capac[ty to eollect requGotcd to aalntaln contact ulth the AgrlculGural Extenslon SBaff al davelopoent agenclee ln thelr areas and obtain l,nf,oruatlsa ou the thr therof cal dengers of iucreased lndiacrlnlnete pestlclde uoen and, esre Gncouraglng the lntroductlon of lotegrated peot Euaagen€nt lnfornat ou other pestlcldaa used la OCP ar€a. It auggeoted thet $ecror 35 r, Ch[cfa anfli/or dlffctprbtcr could be rlaod aud rada evallgblc Bo tbe Group .t 1t8 me*ts umealng. lr, 36r ooril IC.AIIOH OF OCP ECOLOCICAL ACTIVIIIES Gtoup rould rccomand that e 3u@8r,, of l0 yesra of acologlcal datr bc publtahed. products, ooounta uaed aad for what purposc (lnter alla crop ' aud r toiago, hcrblcldee, vetor lnary- puipoceiF-"SEfi["Tnt orrnat tou Group coutlnucd to Bupport, che prqpoeal that on 0CP, eutteble for a publlcatton eucb.ac Ttra Ecologlcal Group sould coafer durlng the a eenl-popular aru{cle Sclence or Setentlflc conolng year oo8"g#rrrdaa poeol"bS.e thoreblp for eueh a publleatlon. Ecologlcal Gnoup ooted ulth great plearure the publlcatlon of tho freohsater fiah ln the OCP area ln lleet Afrlca" (Guldo dec polaoona , de la zone du Progrbooe de Lutte cootre ltoochocercoae en Afrtque - C. LGvtque et D. Paugy, 0RStOl'f-OMS 1984) r rhlch 1t courldcred an AfElca. cootrlbutlon to the Lnorladge of. tho fleh populatlons of tleet l?rr irgp E ,r': {0. tlrth ur 41. Jolot ttr 41., tobdd thc i slt tii ttrs L. 63r uhclr c dhelrroa OTHER MATTERS Ecologlcal Group saa lnforued of thc developuent of a oew devlce for lng non-targ€t organlarne to IGRa for perlode fron l0 ninute8 up to rhe Group encouraged euch developuents aa eo llttre wae knoun about oode of, actton and effects on noa-target organlame. c. LGvBque laforned the Group that he $ourd be unabre to actend sloo of the Expert Advlaory Comlttee and it was agreed that Grooo, aa SecreBary to the Group, ehould preaent lts report totic ra adougou froa 10 to 14 Juae 1985. tbe the K. Cuonlna rould represent eme Couoittee ln Geneva the Group at the alxth reaglon of the frm 10 to 13 l),eceuber 1985. rOR IIEXT MEETING Group propoeed that lte oaxt, Besrlon be convened lu BaraLo at o datelded later. Thls nould glve an opportunl,ty to the uaobere to observc lon ln cortrolred and uncontrolled rlvero ln tho Prograuc area and stern Extengton. AL OF REPORT draft report vaa c{rculsted to th6 ueaberg afcar the neettng andts lncorporoted ln thl,s flnallzed veralon, approved by the OCP/ne page 9 AI{NEX LIST OT PARTICIPAIITS ot K.W. Qrrrrmlns, Appalachtaa Envlronnental of Hnrylaod, Froetburg State College Canpue,Sroetburg, Maryland 21532, USA (Ch!lroa;) esor Dr J.H. Koeoao, Head, Departoent of Toxlcology, Agrlcultur, uuLvereltx, De DretJen 12, 6703 Bc l{agoulngen, Netherlanda R.E. Lennon, 2678 Tltanla'Road, Englerood, Florlda 33533, ugA c. Ldv&qu6, rnatltut f,rangala de gecherche scleutlflque pour le D8veloppctrent en coopGratlon (ORSTOM), 24 rue gayard, 7500g pr:france H. Yaouno, Chlef, Aquatlc Eavironrnental Studlee, Ib.r,qqkl, 305 Japan et 6.o. Gtrooarl scnlor Prograoae and plannlng.offlcer, Agrlcult,uralServlcea Dlvtalon, rAo, 00100 !"rgl r-iry, (Joint-secrerary) J.D.l'i. Harr, chlef , Llaleon Offlce, onchocerclasle control prograrllll0, Gp4gvg, (Jodnt Sccrocary) D.A.T. Ba]"dry, Entomol.+gfat, vector control unit'oncfrscEt'c{er{o -'ConcroL Prograrrne, Ouqra_dougou D.A. cdrvaLho, f,eeonrch Coordlnoror, onchocerclasla control P rograi",ue, !$"Agdgg4gg D. Kurtak, Entorrcloglat, vector control unlt, 0nchocercl,aala coutrFrograrnne, Oullggdgufr ou B. Phlllppo:r, 6hJ.cf, vsctor control unJ,t, oachocorclaals ccqtf,olPro6rer,me, QggadouBou G. Qudlennoc, PestLctdeo Dovelopuent and safe uae, Dlvislon of verBlology and Gontrol, HIO, Geneva . subra, vector control unlt, onchocerclaela control prograure, 0uaBadougou .M. Elouard, ORSTOM, Laboratotre drHydroblologle, B.p. 252g,!!a11 .P. Falrhurat, Departrnent of Laboratory, Uaivar Gunter tlal1, B{ology Laboratory, liatlonal Inatltute : Japan Envlronaent Agency, yatabo Tgukubr tets Dr Dr Dr I I : 1 I i I i i I "*L .*--,.,J Bam Dr Salford 1{5 AtfT, England Blology, Unlverslty of tialford, t. t, I li ll l' ll ll i, t, ll ii i: li lr I ll t' F ll : i oc?/lAc6. pa3c L0 AlilllE[ II InB€€tlc P Plenaed Blvrrs Hoirt.totl Slte Sltc Slte 3t FOR IESTING THB }IEDII'Tf.TER}I EFFECTS OF CARBOSULTAN SASSANDM RIVERON THE NON-TARCET FAUNA OT TBE(rvoRY coAsT) e: Carboeulfan (carbaoate) at 0.05 ppn. y of treatnent: 0nce per week tlon: Three uonthg (beglnning ln old-Auguat f985) ra, from t,he confluenee wlth che Bagbe down to the lake of Buyo o8p). sltea! (See nap). Vlaladougou (control) upetrean fron the treated reach. Sealen ferty, elte dlractly treated wlth the larvlclde (about a hurdred trettes dovnstrean f,ros a t,reatoent polnt). 9t11age of Senlen, elte not treated dtrectly, eltuaced 7 kr dornatreao from the prevloua ono, at rhe end of the theoretlcal carry of the tuaectlclde teet,ed. It ehould nake lt poselble ro etuay the carry and the reeldual actlon of the lneecilclde nave on the non-target fatrna. lcal nonlFortl& typea of drtft morritorlng, have been planned. 1 (Tl) le for tho stud.y of ktnettca of detachoent, and the quautlty rlftlng fauua ol.x daye after each treatuent. 2. ('tZ) te oolely for tha evaluatLon of ghe drlfttng f,auna under the condltlona oe type 1. Sru$ss--ss:*gg Type I (?1) (woek of flret t,reatneut and 8rh week). 1s 2| t t: liI^ [c of T: 88 A. + Drlft - 07h.00 ro 22h.00: treat0enl) > ' J'r|'--'-Y I collectlon-livery hour (eve of (tl - hr) to (t + 3hr): I collectlon every 30 Elnuteo (on the day of treatoent) (t-+ 3hr) to 22h.00: L collectlon every hour 1t.tl of creatDent :l" + Surber apd brooo earnplee to be takca- th9-$a4befope" tr""ar"ot and when the eeaaonal drop-'Iir'uater levelpernlte. . Type 2 (T2) (see tloetabLe). * Drlfc 18h.00 to 21h.00: every 30 rnlnutee (eve of treattreot) #surber aad broou aanplee to be Eakeo the duy beforo treatloentanduhentheaeaaonaldroplnrraterlevcl peruita. tlaetable 10 11 12 13 14 15 16 ocP/EAC6.4 page 1I A}INUII II (faully, trlb€). llrs No. B!.tr l{o. I 2 7 T? T2 T2 t1 T2 T1 T1 rl T2 T2 T2 T2 T1 T2 q1 r2 EygL of ldcntlf lcatlos of organtaPa Lovel adopted for thc uhole noolrorlng progrs@e h aonlto Saaolinr, ncthode .1 frlalc ln cagas (c) (sae table ln paragraph B'2) Sceled flgh n111, ae far aa poaolble, be caught ulth traPs to avoLd lnJurles. Furtherrnore, each caSe (dlnenelon3 50 x 5O : 50cn) riil coatatn flve to 10 fleh (dependlng on thelr alzc) ' Not onii'r*ff the acaled fleh be eeparatcd-fron the orhers, but a18o thore t,lth sPlnee rlll not be nlxed ulth the harnleae epeclee' Plah have to be caught ln the rtver and put lnto cages three-to four days 1o order Io aelect the oo.B vlable one8. In addltloo to observiig thelr behsvlour Juat after t,reataent, theee ftsh rl11 be aoaltorcd frequcotly (cveri thrae houre, fo! exaaple). .Sone offi;-;A;; ilil-;;-bt iiac.l at a dlatanie of about lgirr"ae8y frou thc treatoent polnt 8nd the reot at about 3 kl!. doun3tretl' .r. . ..--&{ oclyuac6. prEr'112 A}NOBT II 8.1 Sltc llo. R12 2 rl6hlng vl th_g1I!:glS_GII 6ee table tn pnragruph B,2. Dur!.ng thc trJ,als tll.th perLnethrln the ce.ge test ehowed that theflsh try t:o flee from t,he larviclde wave, but the cat,chee ln gtll nets wef6 not affected. Drlfts cauoed by the lnsecttclde caanot,therefore, be coneldered aa of great, loportance. 'rhe larvlcldes aubJected to operetlonal trlala are known co ha\re no elgnlflcant lonedlate effect on the f,lsh fauna. To that.uuarbe edded the dtfflculty lrlth the presenu techntquee 1n ehowlag mlnor 6hort-cem effects. rt i6, therefore, not tndlepeoeable to carry out frcquent Bs$pllng. A fen uraelca before trosreent, a control earnpllng of the eelected Btatl.orur atrould b6 uudertaken. Durlng the irlal pe-rToC' the'gllr nete rlll alwayo be placed end rerrleved rhe day Lefore treat;Gnt. In oddtttoo to opecleo ldentlflcarl,on, welghta and lengthe !r1ll have to be rneasured ln order to carculate the eoefficlente of condltlon beforo, dutlng and after the perlod of treatuent. Thegut contonts sf"l.I aleo have td be exantned. Tltnetable ?he table below glveo the perlode foun* at the different elreo. As w111 be $ade on ruacrocrust,&coeng for the nonltorlng of rhe ftsh far: ae poaelbLe obaervatloae ln cageo. I It la of realdues propoaed to carry out an e froa the lake of Buyo, 10 11 L2 13 L4 15 16 CGN CGN 6N analyel.e of cnrboaulfan realdues at the end of the trlal. . CGN ccN ON cgN ccN CN rj rl ,l il ,.j rl ! { .t ir li lr [,* c. Itt 1n mud t,r03 ooo ooa 7 fy aae 6 -E -B (rrDa P tdtor A. I. t ll li I I t, I i I l, t, Group held lte slxth Besston at the OCP Eeadquartere, Faao,.froo 24 to 26 Aprll, 1985. 2. R.l,l. Curmlus chalred th€ Eectlng Bhlch uao attended by all otherlteted tn Annex I.l0f,tbera the Group and thc tachnlcal sscretarlatt 3. of the lE.vtque thp nec oOntrtor ng Dr LGvEquc, accoapauled by Dr Yaauno and Dr Lennon, would vlcrt strtlooe 1o Togo and have dlacugslona trlth the hydrobloJ.ogleol tatlB b, Dr E.H. Sasba, Prograse Dlrector, relcoaed the Group to tbs Progrenme ndldq tlr He polntcd out that tho Programe wee lo a poeltlon of aovlag touardo thc third flneaclal phcec, whan !,8 uould becoraela e furt,her four couatrlear addtng go&e 28 CI00 kru of rLsere to be ttlneiE oplrtt1 ttcstcd. botnon Ec atreseed the nead for 3trsn8thenlng che cotrleboretdve effor8g rhe Progromo and thr Group, oo3 only to ilBar.ntaln Bha confAdeoce whlch and Part{clpetlag Govarnnsnts hsv€ la 0CP, but aloo to dsvclCIp an tredltloa i,n Wcat Afr{,ca ln tba llght of tha d!.aastnauo droughr aud ad{oae dcrortlf,lcatlon of the Sudano.Gutnaan soBGr 5. Be for^ncd the Group that thc Douors and the Comlttee of Sponaor$ng AE&rclee aandatr 1lstted Ecof,og$.e {}f S'ocre Group coneldersd that tha'ovorall ccologtcal eff,acta fron cocloer.* davolopuent could rurpasr any effocto on the rlverlne fauue fron oxpreooed reButr tlug 3.m,rtrlai,de appllcatloa by the Progrr@trer Ia thle respect Ehe Group Group totad that Dr Cunnlna had repreBcoted lt at the flfth aeesloo ot Progtsmc Cooolttee hald ln Nlauey ln Decenber 1984' and Dr C. d etteaded the Bydroblologlctat oeatfng 1n Ouagodougou. Followlng e tr"lLIlfro! recogal,zed th6t tho Programe had Eer,ther the capacl"ty nor thcper Bc and i,te rol,e ehoul"d be luforaatlos on developu,eut. fhe undertaka soctoacoaonlc developnent the gathori.ng aod dloaeninatloo of Group, accordlagly, ehould reattict ltaelf to the eeologlcal p6s tlcldc applleatlon. to bc cooeultad on tho ccoloSlcal lopact, oE tha rlverg tn the gallcry forcgB. i, t il I I' l t, ll I I B. 7. ON OT lItE ACEHDA olloulag agcnda naa adoptcdt Vactor control clturtloa rnd statua of neslataEce la the Progro-o'c area EcologLcal uonltorlag Indcpoudout oonltorlng data vorlflcsBlon Dovelopaeot of, eltcrnatlve larvlctdea Baport ol edultlcldlng tr1.18 Bcologlcal lupact of peatlcldes uaed ln the area other than by OCP Publlcatlon of @P ecologlcal sctlvltle. Any othar asttcrs Arrengalents for the ae:t Eectlng Approval of rcport. fhc (a) (b) (c)(d)(a)(f) (e)(h)(r)(J) ; talqttan avaltrblc of tirta nstl+t{l s noaltoilng preda[E8t ruuilrtton rcptilltnta 14.' trhe coaqol{dat thc Haet t aa hClvtd huoa* Jett ocP/EAC6.4 page 3 CONTROL SITUATION AND STATUS OF NESISTANCE IN THE PROGRA}OA AREA oup uas lnforued that 901 of the core atrea of the Prograue had clear of lnfected vectore throughout thc year. Soue of thc aouttrueet,ern and aouttreaetero bordcre had occurred. the ng Btrategy rhtch enployed tenephoa or alternance of, ehlorphaxLu thutlnglensls H-14 (8.t,. q-11) had been ueed agaln durlng tha^ FiiE-Eefupr ovencn t t n tryd r o t og I ca 1 d at a t rauanl e s ion, lnalud $'ag salon f,ron certal.n reroote aitce, and the eubeequeut luor€ gff,[ei.eot tlve breedlng eltee, leae larvlclde had been applled ro thil thc abeence of ths vector speclee, treatneats hcd baea euopocdald re for coaelderable perlodc thus allorlng the recovcry of the orgenlfios. oup roted the cxperlnantal treatllente belag under8akon oa tha lver baria and the se.tGrn trlbutartee tn Gulnea atued et reduclag lon of the aouttrueatGra area of the ProgramCe $aa lnforoed of the statuB of reslgtancc ln tha lawen t6r ,ucpensloa of tr€atEootr the foroat opecteo had rseeined teaapboe, whlle the suoceptlblUty of eavanna epecfao had hlgh lerele etrnce the occurtrence of raatctance ln 1S83. Io tba oolorr grea changee lu euaccptlblllty had been deaoameratcd wblcb to the lnflucnce of tha uae of agrlcultural cheedcalo. HONITOBING p vas lnf,orned of the outcoae of the Hydrobi,olog!.oter eeotr.qt Lu Ourgcdougou fros 12 to 15 February 1985r aacl notad wl'Eh not all tha reports f,ron the varlous psrt*clpante trsd beaa thrt Eectlng. Ccrtala r€ports were atLll aot aveitabtrc"aad a@s nted werc so deflclant that tt lrao tmpoealblc for rbo Ecologtcal rtcly to fulf!.l ,,ta asndrte. 'fhe oonltor$ng tesoe ml!.rst bo to undcrtrke thelr work ln a Eore coaacleattoua uanner wlEh Bhg tlats concerned being peraonally lnvolved ln the fteld t1vltlcB. recomended that OCP should provlde guldancer ln the way of e , to harnonize the reportlng proceduree and to staudardlso the of data aod that a technlcal euuoary of each rePort be prepored bo translated l.nto the gecond worklng languagc. oup aleo recomaoded tlnga be contlngent an adequate report vc of thc Ecologlcal oup dl,acussed the nonltorlog proEocole for the a3tackt aad oatnteoance phaeeo ln the 1lght of experleace gaLaed ovcr yeatrs. It euphaalzcd that the valuc of the drta collocted frou oooltorl.ng slte depended on the avallablllty of edeguetet data aad the abeence of any rnaJor Dortreatuest factorc (c.g. , dao constructlon, etc.). The data could be corrected for varlatlou and for tollector blaa, both of whlch have beea"-evldent data oete. that partlclpatloo of hydroblologtate la upoB the collectlon of requlrcd drte end tho and that euch rnaeti.nge be ehalrcd by elther e Group or a eenior OCP ataff na[baE. i I ,l r I il ,, ..--,jt