Croton bushes
If ever in East Africa, the branches of the small bushes that lions lie under are a natural insecticide. They are about 1 meter-2 meters high, many offshoot branches from ground level, and have green leaves witha gold rusty sort of spore/dust on them.
Obviously there is also pyrethrium if if are in the area, (small white flowers) any of these simply tied to door entrances, above roof hatches, makes a shade and elementary insect repelant.
Cheers G
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