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1987. Vector control in primary health care. WHO, Geneva, Switzerland. Technical Report Series 755, 61 pp. 1988. Urban vector and pest control: 11th report of the WHO Expert Committee on vector biology and control. WHO, Geneva, Switzerland. Technical Report Series 767. 1989a. Tropical diseases: progress in international research, 1987-1988 - 9th programme report of the UN DP/ World Bank/WHO Special Programme for Research and Training in Tropical Diseases (TDR). WHO, Geneva, Switzerland. 128 pp. 1989b. Geographic distribution of arthropod-borne diseases and their principal vectors. WHO, Geneva, Switzerland. Unpublished report, WHO! VBC/89.967, 134 pp. Wu, N.; Wang, S.; Han, G.X.; Xu, R.; Tang, G.; Qian, C. 1987. Control of Ae4es aegypti larvae in household water containers by Chinese catfish. Bulletin of the World Health Organization, 65(4), 503-506. 279
Botanical pesticides: optimizing pest control and minimizing environmental impacts B.J.R. Philogène1 and J.D.H. Lam bert2 of Ottawa and 2Department of Biology, Carleton University, Ottawa, Ontario, Canada Various types of botanical pesticides and their mode of action are examined: photosensitizers, antifeedants, and lignans. The role of naturally occurring synergists is also discussed. For any new botanical substance to be accepted as a safe biocide, it must be subjected to the same rigorous toxicity tests as synthetic products. The steps in this process are identified and outlined, using the molluscicide endod as an example. The use of chemicals of plant origin for the control of destructive insects or vectors of diseases is not new. Rotenone, nicotine, and pyrethrins have been available for a long time (Matsumura 1975). Only pyrethrins remain in use as efficient, low-cost insecticides. With increasing problems of toxicity and resistance of target pests to the synthetic compounds currently in use, interest in "natural" pesticides has revived. Pest-management specialists have been looking elsewhere for pest control as a result of the environmental and health problems brought about by the intensive and extensive use of organochlorines, organophosphates, and carbamates. Moreover, third-generation insecticides (insect hormones and their analogues) have not produced the results expected. Botanical pest control attempts to provide environmentally acceptable methods of insect control through the naturally occurring substances in the crop plant or application of compounds derived from other plants. Such compounds and their derivatives should minimize losses at all the stages of agricultural and forest production and provide new molecules for the control of disease vectors. The search for new chemicals to be used as insecticides may also provide compounds with a mode of action different from the classic neurotoxicant, against which so many arthropod species have become resistant. This important development in pest-management strategies has been 280
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Impact of pesticide use on health i
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IMPACT OF PESTICIDE USE ON HEALTH I
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©International Development Researc
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Contents Acknowledgments viii Forew
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Control of disease vectors: a curre
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Foreword From their first appearanc
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PART! EPIDEMIOLOGY OF PESTICIDE POI
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Although pesticides are used both i
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Table 1. Introduction of pesticides
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problem. The International Developm
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impact of pesticides on Canadian wi
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investigated further. For example,
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Conclusions The subject of this vol
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Jusoh Mamat, M.; Anas, A.N.; Heong,
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Health-risk assessment of pesticide
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especially in the absence of comple
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depends largely on external factors
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Specific situations may require spe
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that the best possible work is done
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doses (chronic poisoning) or delaye
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Table 1. Poisoning incidents in fou
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Pesticide research for public healt
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Current pest control practices in T
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800- 400- 200 - 1980 1981 1982 1983
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designed 30-40 years ago (Jusoh Mam
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and tore easily. One investigation
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education, mass-communication tools
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Increase and improve training activ
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Castaneda, C.P. 1988. Pesticide poi
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Ooi, A.C.P.; Heong, K.L.; Lim, B.K.
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Investigations into acute pyrethroi
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Level of exposure To assess the lev
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Table 2. Cases of acute pyrethroid
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(in 121 subjects), usually develope
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Deltamethrin was detectable in the
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pyrethroid poisoning. Therefore, th
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Gilliatt, R.W.; Willison, R.G. 1963
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Table 1. Value of imported pesticid
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Study two Twelve farmers participat
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All activities Left hand (73.2) Lef
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Acknowledgment- The three studies r
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Since the creation of Pakistan in 1
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Table 1. Incidents of pesticide poi
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Sandu, S.S.; Waters, M.D.; Simmon,
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and chlordane. Pest resistance to t
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young workers was 15.8%, 6.8%, and
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Storage of pesticides Although the
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Discussion The lowland regions and
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Pulmonary obstructive disease in a
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To investigate the presence and mea
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Age (years) Table 1. Distribution o
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was among paraquat users who smoked
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Levin, P.J.; Klaff, L.J.; Rose, A.G
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the delta. The total population of
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The successive and simultaneous rel
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on clinical studies and laboratory
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This made the collection of blood s
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Table 1. Relation between informati
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analysis, and engaging in various t
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Table 1. Value (million KSH) of pes
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To develop a health-education packa
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Storage site Table 3. Storage of ag
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Table 5. Causes of agrochemical and
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Methods A pilot field survey was un
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Conclusion The practices followed b
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manufactured or formulated locally,
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However, based on individual compla
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Table 4. Acetylcholinesterase activ
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Age did not appear to be an importa
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eactions to the pesticides in occup
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Bowers, M,B.; Goodman, E.; Sim, V.M
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Extent of exposure of farm workers
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Group III consisted of 31 farmers w
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25 - 0 Level of exposure J Group 1,
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Pesticides were stored everywhere c
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Table 2. Concluded. Question Answer
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PART II RELATING PESTICIDE DEVELOPM
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Toxicity Table 1. Requirements and
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Screening Process development Route
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Progress in improving safety Pestic
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type of formulation, and warning pr
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The pyrethroid, cypermethrin, is mo
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Studying the effects of pesticides
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of the risk is a quantitative issue
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egistry could be linked to the lice
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poisoned through mishandling of an
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no documented incident could be fou
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Region Table 3. Use of using pictog
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of fluorinated HDPE because fluorin
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Current initiatives, at the interna
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inding within their jurisdictions.
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Benefits of a hazard auditor From t
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different agencies take to be permi
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industry and of its serving to legi
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Anonymous. 1988a. FAO code of condu
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(Adam 1976; Fraser and Burrill 1979
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in the lower price categories tend
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Anas, N.; Jusoh Mamat, Md.; Heong,
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Zam, A.K. 1980. Bancian pengurusan
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Materials and methods Assessment of
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At the end of each day's operations
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Table 3. Number of garments chafing
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underlines the need to change attit
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Evaluation and management of pestic
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target and react with some crucial
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scientists on a contractual basis,
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pesticides in developing countries
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Regional information resources for
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Table 2. Number of enquiries receiv
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extent of this problem in developin
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Promoting the safe use of pesticide
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pests) is observed. Thus, the "quic
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is one of principal agencies respon
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Pretesting materials in training an
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of costly medical technologies and
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The agricultural sector has by far
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At the community level, the extent
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Neufeld, V. 1989. Community-based m
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Outline for learning module using o
Page 239 and 240: WHO (World Health Organization). 19
Page 241 and 242: In the past decade, tremendous effo
Page 243 and 244: Jiang-Su province Results and discu
Page 245 and 246: As a result of deregulation, the nu
Page 247 and 248: Table 3. Proportion of workers usin
Page 249 and 250: Shih, J.H.; Wu, Z.Q.; Zhang, Y.X.;
Page 251 and 252: Pesticides and wildlife: a short gu
Page 253 and 254: Using target-specific products mini
Page 255 and 256: specifications. Other data are asse
Page 257 and 258: Formulation-specific concerns The e
Page 259 and 260: mirex, and chiordecone have been ba
Page 261 and 262: 1984). The base for pesticide granu
Page 263 and 264: e more stringently reviewed. In Can
Page 265 and 266: For example, searching for carcasse
Page 267 and 268: overlooked. In developing countries
Page 269 and 270: Establish monitoring programs to de
Page 271 and 272: Grue, C.E.; Fleming, W.J.; Busby, D
Page 273 and 274: Schafer, E.W., Jr; Brunton, R.B. 19
Page 275 and 276: Table 1. Prevalence and distributio
Page 277 and 278: By 1980, resistance to at least one
Page 279 and 280: tries. Japanese encephalitis has be
Page 281 and 282: to the targeted larvae of mosquitoe
Page 283 and 284: The role of the community Many prob
Page 285 and 286: from locally available sacking mate
Page 287 and 288: services. The project also includes
Page 289: Maxwell, C.A.; Curtis, C.F.; Haji,
Page 293 and 294: neurotoxin but a cytotoxin, cross-r
Page 295 and 296: MoDuscicide- and pesticide-developm
Page 297 and 298: A development plan has been identif
Page 299 and 300: and environmental effects must be d
Page 301 and 302: Devitt, B.D.; Philogène, B.J.R.; H
Page 303 and 304: Endod, a potential natural pesticid
Page 305 and 306: University in Ottawa, and in other
Page 307 and 308: in the field (Lugt 1981), 137 500 m
Page 309 and 310: Hutchinson, J.; Dalziel, J.M. 1929.
Page 311 and 312: Community participation, including
Page 313 and 314: Acknowledgment- This research has b
Page 315 and 316: multiplication. The high temperatur
Page 317 and 318: Because pesticides are required in
Page 319 and 320: Africa and now East Africa. The suc
Page 321 and 322: Integrated pest management 1PM may
Page 323 and 324: to risk crop damage. Close involvem
Page 325 and 326: Ramos-Ocampo, V.E.; Magallona, E.D.
Page 327 and 328: esidues on fresh and cooked vegetab
Page 329 and 330: Grassy strip 108 N Farmer's Experim
Page 331 and 332: Table 1. Description and efficiency
Page 333 and 334: Table 3. Cost (PHP) of pest managem
Page 335 and 336: in the field. These pests were the
Page 337 and 338: PART V APPENDICES
Page 339 and 340: Ravindra Fernando, National Poisons
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Frank White, Pan-American Health Or
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ECHO abdominal ultrasonograph EEG e
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URT upper respiratory tract USAID U
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