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Citation Information

Type Working Paper
Title Is increasing Pest Infestation and Heavy use of Pesticides Related to Climate Change? A case Study From Nepal
Author(s)
Publication (Day/Month/Year) 2015
URL https://works.bepress.com/layne_coppock/300/download/#page=263
Abstract
Commercialization of agriculture along with climatic variations has led to increased pest
problems and outbreaks. Vegetable growers prefer to use easily available pesticides for
managing field pests that has further increased pest resistance, secondary pest outbreaks, the cost
of production, and environmental degradation and health hazards. Against the backdrop of
pesticide impacts, a field survey was conducted by consulting 60 commercial vegetable
producers in pocket areas of Makawanpur and Parsa district, Nepal. The study was conducted to
analyze the field pest problems in vegetables and the use of pesticides for their management.
Among the ten problems the producers mentioned, pest-diseases, reliability of seed quality,
irrigation and watering, drought and climatic changes were major four problems. To manage the
pests and diseases, farmers were using higher number of sprays and heavier doses of pesticide in
major vegetables. The pesticides are being inefficient as 91.66% of the respondents mentioned
pest and disease problem is increasing over the years. The highest number of pesticides sprays
was found in brinjal (23.6±5.44 sprays), followed by sweet pepper (17.34±3.95), tomato
(13.63±6.75), ladies finger (10.28±2.37), cucumber (9.68±6.90), cowpea (8.61±4.54) and bitter
gourd (8±4.65). Similar pattern was observed in the quantity of active ingredients (a.i.) sprayed
in different vegetables. Brinjal received the highest amount of a.i. (15.93±3.67 kilogram per
hectare) followed by sweet pepper (11.71±2.67), tomato (9.20±4.56), lady's finger (6.94±1.86),
cucumber (6.54±4.66), cowpea (5.82±3.06) and bitter gourd (5.40±3.14) during a single crop
growing season. Eco-friendly methods need to have devised for more climate resilient plant
protection measures.

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