B. H. Hill

Agricultural Development Priorities for Namibia: The Lessons from Lesotho

J. Eckert, B. H. Hill, J. L. Mokotjo, 1990 .

Control of frit fly (Oscinella spp.) in newly sown grass using a combination of low doses of pesticide, resistant grass cultivars and indigenous parasitoids

R. O. Clements, H. Emden, B. H. Hill, 1990 .

Field resistance to stem‐boring larvae (Oscinella spp.) of some ryegrass (Lolium perenne and L. multiflorum) cultivars when newly‐sown

H. Emden, B. H. Hill, .R. O. Clements, 1991 .