The Effect of Agrochemicals on Vector Populations

  • George P. Georghiou


Crop losses due to the action of herbivorous arthropods, parasitic fungi, nematodes, molluscs and noxious weeks have been estimated to represent at least one third of production (Cramer 1967). Losses from insects alone were stated to be from as low as 12% of potential production (Anonymous 1974) to several times that much (Pimentel et al. 1978). Since modern plant protection chemicals offer the most practical means of reducing crop losses, they are being used extensively throughout the world, and it is expected that demand for these will continue to rise as developing countries strive to increase their agricultural production and to improve their economic standards. The world market for pesticides in 1985 was estimated at $13,778 million and was expected to increase to $15,759 million by 1990 (Table 7.1) (Anonymous 1985).


Insecticide Resistance Mosquito Population Vector Population Methyl Parathion Carbamate Insecticide 
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© Routledge, Chapman & Hall, Inc. 1990

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  • George P. Georghiou

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