Thailand is one of the world’s largest exporters of
agricultural products. Forty percent of Thailand’s land
area is devoted to agricultural production [19]. More
than half of the total national workforce is currently
engaged in the agriculture sector [15, 22]. Furthermore,
the main source of income of rural Thai people originates
from agriculture, because of Thailand’s geographic
location and climate [23]. Unfortunately, the climate
does not only support agricultural activities, it also
supports insect and other crop pests. As a result, the
fields experience significant populations of insects and
other pests during growing season. To control the pests,
Thai farmers use excessive amounts of chemicals and
pesticides to protect their harvest and to increase productivity
[31]. To ensure sufficient pest control products
imported pesticides have dramatically increased from
last decade