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population dynamics of the target pest. Population monitoring is an important component of any 1PM strategy and various trapping methods have been used for this purpose. Pheromone traps have been particularly useful for monitoring and reducing the activity of Lepidopteran adults (Roelofs 1981); however, Leucinodes pheromone has not yet been isolated. Methods The research was carried out in Calamba, Laguna, from February to June 1990 as part of an ongoing project on 1PM in rice and vegetable crops, funded by the International Development Research Centre (IDRC). The fields are owned by a farmer, who managed all nonresearch activities. The fields were also used to demonstrate research results to local vegetable farmers. The study was designed to facilitate adoption of procedures by farmers. All research was carried out in a farmer's fields with the farm family fully informed of all activities and participating in most. Neighbouring farmers often inquired about the experimental results and they were invited to two demonstration meetings at the fields. During monthly meetings at a local school, researchers also explained 1PM and its use to farmers. Because women play a large role in vegetable production, fieldwork, decision-making, and marketing (UPLB 1990), most of the staff were female, and extension activities were directed toward both women and men. Plots (4 x 5 m) were laid out in the experimental field on which six pest-control strategies were tested: two biological agents (Trichogramma and Euborellia); two culture methods (manual sanitation and trapping); chemical spraying; and no treatment. Each treatment was replicated three times with an average of 25 plants in each plot (Fig. 1). This layout permitted minimal interference between treatments. Because of the strong prevailing winds, the experimental field had to be east of the farmer's field to avoid pesticide drift, and different treatments were separated by 12 m in a north-south direction. The methods used for the various treatments were: a Trichogramma chilonis were released at a rate of 300 per 20-rn2 plot (150 000/ha). The population of insects in the field was monitored beginning in February to time Trichogramma releases to occur I day after peak adult flights of Leucinodes. Releases began on 23 April. Euborellia annulata were released at a rate of 17-35 per 20-m2 plot (8500-17500/ha). Releases began on 1 June and were timed to coincide with increases in the larval population of Leucinodes. Manual control involved handpicking and destroying all damaged fruits and shoots from the plots and from a 2-m border around the plots after each harvest. 317
Grassy strip 108 N Farmer's Experimental field field Hedgerow 18 House 12 rep 1 4 12 Road Fig. 1. Layout of plots to test methods of pest management in vegetable crops. (All dimensions are in metres.) 318 18 rep 2 House rep 3
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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
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WHO (World Health Organization). 19
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In the past decade, tremendous effo
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Jiang-Su province Results and discu
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As a result of deregulation, the nu
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Table 3. Proportion of workers usin
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Shih, J.H.; Wu, Z.Q.; Zhang, Y.X.;
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Pesticides and wildlife: a short gu
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Using target-specific products mini
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specifications. Other data are asse
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Formulation-specific concerns The e
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mirex, and chiordecone have been ba
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1984). The base for pesticide granu
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e more stringently reviewed. In Can
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For example, searching for carcasse
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overlooked. In developing countries
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Establish monitoring programs to de
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Grue, C.E.; Fleming, W.J.; Busby, D
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Schafer, E.W., Jr; Brunton, R.B. 19
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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 and 290: Maxwell, C.A.; Curtis, C.F.; Haji,
Page 291 and 292: Botanical pesticides: optimizing pe
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: esidues on fresh and cooked vegetab
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
Page 341 and 342: Frank White, Pan-American Health Or
Page 343 and 344: ECHO abdominal ultrasonograph EEG e
Page 345 and 346: URT upper respiratory tract USAID U
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