Changed 'two-year old' to 'two-year-old' on page 171: "two-year-old medium-sized trees". Also on page 174: "prefer two-year-old trees".
Changed comma to period to end sentence on page 176: "repack stored apples before marketing.".
Inserted hyphen on page 179: "codling-moth".
Changed 'yearss' to 'years' on page 184: "eighteen years".
Removed extra word 'a' on page 187: "a couple of inches".
Changed 'cornstalks' to 'corn-stalks' on page 188 to be consistent with all other spellings: "the ever-present corn-stalks".
Removed extra word 'of' on page 189: "part of the risk".
Changed garbled text 'o beet nasily see' to 'to be easily seen' on page 196.
Changed 'figures 3 and 5' to 'figures 3 a and b' on page 204 to match up with the figures.
The caption for figure 4 on page 205 is missing the explanation for figures c and d.