Phytophthora crown rot is most severe in orchards planted in heavy and poorly drained soils and on trees propagated on size-controlling rootstocks.
(Phytophthora crown rot; is; most severe; L:in orchards) (orchards; planted; in heavy and poorly drained soils and on trees) (trees; propagated; L:on size-controlling rootstocks)
Phytophthora crown rot orchards trees
is planted propagated
most severe L:in orchards
in heavy and poorly drained soils and on trees
L:on size-controlling rootstocks