. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 72 Insect [F. Jideiideii -A C'.: :\ia(.;got in aitlk. transjiarent is it that we can observe tlie little caterpillar Ijein^ formed inside.* Only one egg as a rule is placed on each apple, and as a single iemale may lay over one hundred eggs we see what great harm a small number of these little moths may do in a garden or orchard. As soon as tlie little caterpillar escapes out of its egg-shell it crawls over the apple, and when it comes to the "
. The insect and other allied pests of orchard, bush and hothouse fruits and their prevention and treatment . Insect pests; Fruit. 72 Insect [F. Jideiideii -A C'.: :\ia(.;got in aitlk. transjiarent is it that we can observe tlie little caterpillar Ijein^ formed inside.* Only one egg as a rule is placed on each apple, and as a single iemale may lay over one hundred eggs we see what great harm a small number of these little moths may do in a garden or orchard. As soon as tlie little caterpillar escapes out of its egg-shell it crawls over the apple, and when it comes to the " eye " it has reached the first stage of its journey. During the first week or ten days after the apple blossom has fallen, the separate parts surrounding the eye (the calyx) remain pointiag outwards, Ijut later on close up to some extent over the eye. In either case the small larva can easily enter. At first it feeds upon the tissue of the eye and then commences its passage deep into the pnlp of the fruit. Its first objective seems to be the core, and during its tunnelling operations it forces its excrement (called " frass ") out of the small hole of entry at the eye. Thus we can detect a struck apple in its early stages by the wet brown matter oozing from the top. Later on the culprit forms a further tunnel to the exterior, opening as a large round hole at the side, bottom or even summit of the fruit. From this opening * The first full account of the egg ^\-as given by Slinger- land. ]!ull. 142. Cornell University Agricultural J']x- periment Station, , fig. l;-!l, .Tan. ,. 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 Theobald, Frederick Vincent, 1868-1930. Wye, Eng. : Frederick V. Theobald
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