. Better fruit. Fruit-culture. Figure 8—PICKED FRUIT FROM PLAT 3, SPRAYED THREE TIMES WITH LEAD ARSENATE Apples in large pile free from curculio crescents or codling moth worm holes, per cent; apples in small pile damaged by curculio, per cent; six apples on box to right damaged by codling moth, i%oo of 1 per cent. bearing upon the times of sprays, as will be seen later. A few apples were found with worms escaped by June 11, and larvae preparing to pupate were first caught under burlap bands on trunks June 16. From this date forward almost up to the time the apples were picked in Octo
. Better fruit. Fruit-culture. Figure 8—PICKED FRUIT FROM PLAT 3, SPRAYED THREE TIMES WITH LEAD ARSENATE Apples in large pile free from curculio crescents or codling moth worm holes, per cent; apples in small pile damaged by curculio, per cent; six apples on box to right damaged by codling moth, i%oo of 1 per cent. bearing upon the times of sprays, as will be seen later. A few apples were found with worms escaped by June 11, and larvae preparing to pupate were first caught under burlap bands on trunks June 16. From this date forward almost up to the time the apples were picked in October, larvae continued beneath the bands. Before all the larvae of the first generation had left the apples there were some of the earli- est maturing of the second generation worms fully grown and leaving the fruit, thus bringing about an ^jverlapping of generations difficult to separate. The first moth of the second genera- tion was secured on June 29, and a num- ber of others were secured during the first week of July. Early in July the first of the second generation eggs were to be found, though the maximum num- ber did not appear for some weeks later. Moths were reared from cages, kept at approximately outdoor temper- ature, as late as September 4, and there is little doubt that moths were present in the orchard at even a later date, for when the Ingram apples in the check block of the experiment were picked the first week in October, there were a few very small, sluggish larvae of cod- ling moth to be found in the fruit, retarded in their development by the cold autumn nights. Indeed, on Octo- ber 7th, while the apples were being examined, what seemed to be a single freshly deposited codling moth egg was found attached to an apple. This speci- men was probably one of a third genera- tion of the insect. For the most of the state there seem to be but two annual generations as established by Dr. Riley in careful studies conducted by him forty years ago. Everyone knows the &
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