Combating apple scab: Spraying an dusting experiments in 1922
Krout, W.S.
Combating apple scab: Spraying an dusting experiments in 1922 - Mass 1923 - 29-41 p. - Massachusetts Agricultural Ex .
Combating apple scab: Spraying an dusting experiments in 1922 - Mass 1923 - 29-41 p. - Massachusetts Agricultural Ex .