Table 1.

Experimental hut treatment for the study on the effect of pH on decay rate of carbamates - Phase I

Wall surface	Hut no	Sprayed with:
Dung	1	Non buffered local water/High pH (8.0)
	2	Buffered water/Low pH (4.3)
	3	Bendiocarb (0.4 g/m2) in High pH spray water
	4	Bendiocarb (0.4 g/m2) in Low pH spray water
	5	Propoxur (2 g/ m2) in High pH spray water
	6	Propoxur (2 g/ m2) in Low pH spray water
Mud	7	Non buffered local water/High pH (8.0)
	8	Buffered water/Low pH (4.3)
	9	Bendiocarb (0.4 g/m2) in High pH spray water
	10	Bendiocarb (0.4 g/m2) in Low pH spray water
	11	Propoxur (2 g/ m2) in High pH spray water
	12	Propoxur (2 g/ m2) in Low pH spray water