or, more usually, carried on the head by women or children. The maize was stored on the cob until the farmer found time to shell and, occasionally, treat it. If it was not already dry, then cobs were spread on the ground each day to dry in the sun. Many farmers stored grain in traditional wicker baskets made of lantana or papyrus reeds, with thick branch supports. Mud or cow dung was often used for smearing the base and sides of the basket. Traditionally,'when the basket stands outside the house it has a grass thatched roof; when inside the house, it is left open. Some farmers store small amounts of grain in sealed clay pots; some now store in metal containers, such as oil drums or cooking oil tins. The habit of storing grain inside the house developed because of the fear of theft; though another reason could be the reluctance to give it away to neighbours or relatives. Many farmers put their grain in gunny bags which are then kept inside the house-often lying in places where they can easily be contaminated by rats or domestic animals. Farmers try to protect their grain from rats by using poison, setting traps or keeping cats. Very few in the survey group were raising their storage units off the ground and fitting simple metal rat- guards. As for treating shelled grain for storage, the one traditional practice was to use wood ash to prevent damage by weevils and other insects. Some farmers were, at the time of Dr Mbula's study, using recommended Malathion or Actellic chemicals-though a few in the survey were found to be using such chemicals as DDT (which has been declared illegal in Kenya) or pyrethrum dust. A few farmers were using domestic aerosol insect sprays like "It" or "Doom", which can have harmful effects on human health and certainly should not be sprayed on foodstuffs. What implications can be drawn from the information that Dr Mbula has provided? As the extension worker in direct contact with farmers, you should study their existing practices-challenge those that are harmful or useless, but see whether some of the practices can be adapted rather than simply discarded. There is nothing wrong, for instance, with storing maize in the house, provided it is properly treated and kept clean.