R. Kenneth

Westcott's Plant Disease Handbook (Westcott's Plant Disease Handbook (Book Only))

By Horst, R. Kenneth, R.K.

Field Manual of Diseases on Trees and Shrubs

By Horst, R. Kenneth

Field Manual of Diseases on Grasses and Native Plants

By Horst, R. Kenneth

Field Manual of Diseases on Garden and Greenhouse Flowers

By Horst, R. Kenneth

Field Manual of Diseases on Fruits and Vegetables

By Horst, R. Kenneth