. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 306 FESTS OF ORCHARD AND SMALL FRUITS called for in regular orchard spraying, Tvill poison the larvae before thej' fold the leaf. The Lesser Apple Leaf-folder {Peronea viinuia Rob.) A greenish yellow, naked worm, a half inch long, with a yellow head, folds together the tender terminal leaves on apple trees, especially in nurseries, "ttlien attacking larger leaves, it often bends over and fastens only a small part of the leaf near the margin. There are three broods annually, the larvae being at work first
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 306 FESTS OF ORCHARD AND SMALL FRUITS called for in regular orchard spraying, Tvill poison the larvae before thej' fold the leaf. The Lesser Apple Leaf-folder {Peronea viinuia Rob.) A greenish yellow, naked worm, a half inch long, with a yellow head, folds together the tender terminal leaves on apple trees, especially in nurseries, "ttlien attacking larger leaves, it often bends over and fastens only a small part of the leaf near the margin. There are three broods annually, the larvae being at work first soon after the leaves are well out, again in June, and again in August. See page 300. To control, apply arsenate of lead in the spring as soon as the leaves are expanded, and repeat for the later broods. The Cigar Case-bearer (Cohophora fleicherella Fern.) Areas in the leaves of apple, pear, or qioince are mined and turned down bv a ver\- small cater- ^Hv^'^Sn ) ^^^^^H E ^^ ^^â Kx^^l ^^Hhhjh .^^h Fig. â Adult of the Cigar Case- bearer. Enlarged and natural size. Original. piUar that carries with him a little cylindrical case made of a tiny sec- tion of a leaf, the liind part of his body protected by tliis case. The caterpillar completes its growth in June, migrates to a branch, to wliich it attaches its case, and transforms. The adult moths fly in .July and lay eggs on the leaves. The young caterpillar first mines in the leaf tis- sue, and later constructs a verj' Fig. 466. â Larval cases of the Cigar Case-bearer. 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
