. Bulletin. Agriculture -- New Hampshire. December, 1909.] THE CODLING MOTH. 67 Although tliere is a considerable variation in the time the eggs are laid, diu' to the time of emeriicnee of the individual moths and the c-haraeter of the season, three years' observations would indicate that most of them are laid about July 1. The eggs hatch in from five to ten days, depending upon when they were laid, the average time being about eight daj's. The time of hatching of the eggs in relation to the time of the apple blossoms dropping is most important in determining the time for the second spraying,
. Bulletin. Agriculture -- New Hampshire. December, 1909.] THE CODLING MOTH. 67 Although tliere is a considerable variation in the time the eggs are laid, diu' to the time of emeriicnee of the individual moths and the c-haraeter of the season, three years' observations would indicate that most of them are laid about July 1. The eggs hatch in from five to ten days, depending upon when they were laid, the average time being about eight daj's. The time of hatching of the eggs in relation to the time of the apple blossoms dropping is most important in determining the time for the second spraying, as will he shown by the experiments described on page 74. In 1906 the first eggs hatched 21 days after the blossoms fell, in 1907 in 11 days, and in 1908 in 21 days, while the majority of the eggs hatched 26 days after the blossoms fell in 1906 and 30 days in 1907 and 1908. It is evident, there- fore, tliat the majority of eggs do not hatch until about four weeks after the blossoms fall. The Larva, or Apple Worm. The young apple worm is at fii'st only â¢about one-sixteenth of an inch long. of a whitish color, with a shining black head, and with distinct, black- ish tubercles on the back, which be- come quite obscure in later life. As soon as the voung worm crawls from the eggs it usually makes a frugal breakfast upon the tender part of a leaf, preferal)ly at the juncture of the veins on the under surface. Indeed, occasionally a worm may feed en- tirely upon the foliage and transform without entering an apple, as we have reared them upon tender water- sprouts. But this probably rarely . ^'^-^â -^"""^'â¢-â "â¢""^''""'V'*''''! ^ 1 ^ ^ justhatched with eggshellâenlarged occui's in the orchard, except, per- haps, when t)iit little fruit is available. Very soon his appe- tite for green apples commences to assert itself, like that of the small boy, and he commences to search for young fruit. It was formerly supposed that most of the egg
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