Show MANY APPLE TREES INJURED spring canker worm does great amount of damage in kansas cansar very easy of control the kansas experiment station is of the opinion that the spring canceri canker worm has killed more apple trees lai that state in a single season than the san jose scale has done since its first firse introduction i Anything so easy of control as canker wona should not be allowed to do serious damage the cankerworms canker worms worm Is a lef leaf eating insect and easily poi 1 by spraying |