. Better fruit. Fruit-culture. June, ip20 headed trees also have their trunks shaded during the summer, and the sun- loving beetles will not alight upon them to deposit eggs. Eggs may be deposited upon perfectly healthy bark, but the young borers which hatch from eggs so placed are not able to develop, probably for the reason that their burrows, as soon as they extend to the growing tissue, be- come filled with sap and the borer has to recede or be drowned. BETTER FRUIT. Adult flat-headed apple tree borer. Enlarged. Newly transplanted trees sustain the greatest loss from this insect because it
. Better fruit. Fruit-culture. June, ip20 headed trees also have their trunks shaded during the summer, and the sun- loving beetles will not alight upon them to deposit eggs. Eggs may be deposited upon perfectly healthy bark, but the young borers which hatch from eggs so placed are not able to develop, probably for the reason that their burrows, as soon as they extend to the growing tissue, be- come filled with sap and the borer has to recede or be drowned. BETTER FRUIT. Adult flat-headed apple tree borer. Enlarged. Newly transplanted trees sustain the greatest loss from this insect because it is impossible to avoid a period of re- tarded growth following the removal of the trees. After being transplanted, trees should be watched carefully throughout the summer and the borers removed with a knife before they have had time to make deep wounds in the bark and wood. The knife should be used with great care to avoid unneces- sary cutting of the bark at a time when the tree is already weakened. An ex- cellent practice where trees are planted near woodlands, or in any position where flat-headed borers are likely to be numerous, is to shade the trunk of the tree by means of a board driven. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Washington State Apple Commission. Hood River, Ore. , Better Fruit Pub. Co
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