. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). it throws its excrement; it apparently keeps the hole closed with a net work of silken threads in which are mingled particles of apple bitten off by the worm and with grains of excrement. An exit hole thus stopped up is shown, enlarged, at a in figure 134. This "worm- hole " often remains in this condition for several days, the caterpillar evidently feeding inside and making further preparations to leave the fruit forever. The codling-moth usua
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). it throws its excrement; it apparently keeps the hole closed with a net work of silken threads in which are mingled particles of apple bitten off by the worm and with grains of excrement. An exit hole thus stopped up is shown, enlarged, at a in figure 134. This "worm- hole " often remains in this condition for several days, the caterpillar evidently feeding inside and making further preparations to leave the fruit forever. The codling-moth usually spends from twenty to thirty days of its life as a caterpillar feeding inside the fruit. A7'e two or more fruits ever attacked by the same worm ?—Roesel believed that the worms often went from one apple to another, even though the apple fell to the ground and the worm had to climb the tree again. Later observers have only seen indications of where a worm has left one fruit and entered another touch- ing it while the fruits were still on the tree. There is no authentic evidence to show that more than two apples are ever entered by the same worm. Usually the apple-worm gets its growth in the same fruit where it got its first meal. The /lumber of zvorms in a sifigle fruit.—Usually but one apple-worm occurs in a fruit, but several instances are recorded where two, three, or even four worms have been found in one fruit. Out of 201 apples examined by Atkins, in Maine, in i 882, nine had been penetrated by three worms each, and 47 by two worms each; in no case did a worm gnaw through into the burrow of another. When two or more worms are found in the same fruit, they are usually quite different in size, and may belong to different broods. Effect of their work on the fruit.—Usually fruit in which the apple- worm is at work shows signs of a premature ripening. This is espe- cially true of early varieties, and ''windfalls" are often the final result. In the case of late va
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