largest villages in Chieng Khoi. It is worth mentioning that farmers in Chieng Khoi
used pesticides only on their rice paddies at this time, but not on their other fields.
We asked the respondents to list the major pest problems occurring in the spring
Fig. 4.2 Crop yield losses due to pests in the Mae Sa watershed area in Thailand, 2010 (Note:
These are actual losses after pest control was applied, and represent averages over all farmers
growing the crop)
Fig. 4.3 Gross margins versus pesticide use for different crops in the Mae Sa watershed in
Thailand, 2010 (Source: Adapted from Schreinemachers et al. (2011))
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M. Lamers et al.
used pesticides only on their rice paddies at this time, but not on their other fields.
We asked the respondents to list the major pest problems occurring in the spring
Fig. 4.2 Crop yield losses due to pests in the Mae Sa watershed area in Thailand, 2010 (Note:
These are actual losses after pest control was applied, and represent averages over all farmers
growing the crop)
Fig. 4.3 Gross margins versus pesticide use for different crops in the Mae Sa watershed in
Thailand, 2010 (Source: Adapted from Schreinemachers et al. (2011))
156
M. Lamers et al.