Exploration is expensive but costs can be minimised by setting up an
exploratory unit either in an existing research institution or in a rented
house with garden space for the erection of shade houses, planting of test
plants and rearing of insects. The location of the base will depend on
whether the weed has a broad geographic range covering several countries
or a narrow range within one country. The base need not be permanent and
it may be economical to have the exploratory unit based in different
countries at different times of the year or during different years.
It is essential to procure transport or to purchase or hire a vehicle
for surveying. For aquatic weeds, the acquisition or hire of a boat may be
necessary.
