. Nature study and agriculture. Nature study; Agriculture. INSECT PESTS OF GARDEN AND FIELD 217 MOTH The Codling Moth does much damage wherever apple- growing is an important industry, the annual loss caused in such states as New York, Ohio, and Illinois ranging from one to two million dollars and sometimes even more. This small, dark-gray moth lays her eggs in the spring on the sur- face of the young apple a week or ten days after the petals have fallen. A female has been known to lay as many as 85 eggs, usually one to an apple so that she may ruin a great many. As soon as the larvae are hatc
. Nature study and agriculture. Nature study; Agriculture. INSECT PESTS OF GARDEN AND FIELD 217 MOTH The Codling Moth does much damage wherever apple- growing is an important industry, the annual loss caused in such states as New York, Ohio, and Illinois ranging from one to two million dollars and sometimes even more. This small, dark-gray moth lays her eggs in the spring on the sur- face of the young apple a week or ten days after the petals have fallen. A female has been known to lay as many as 85 eggs, usually one to an apple so that she may ruin a great many. As soon as the larvae are hatched, they enter the young apple at the calyx, eat their way to the core, complete their growth in two or three weeks, and then eat their way out through the sides of the apple. They then crawl to the trunk of the tree and make their cocoons under the bark. In warm weather these complete their trans- formation in two or three weeks, and the adults come forth to start another brood on the late apples. We find some of these later larvte in the fruit when we cut it; but some of them safely pass the' winter in the orchard and then attack the next year's crop. The treatment for the codling moth is to spray the tree in the spring just after the petals have fallen and before the calyx has, closed. The larva then gets his medicine when he starts to enter the apple. Birds and beetles are the natural enemies of the 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 Schmidt, Charles Christian, 1859-. Boston, New York [etc. ] D. C. Heath & Co
Size: 1527px × 1636px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectagriculture, bookyear
