. Apple growing in the Pacific Northwest; a condensation of lectures, experiments and discussions. arva or worm, the pupa and the moth, and those four stages,taken together, form the circle, the generation of brood, and sincethat complete circle is finished or completed twice each year, from theegg to the codling moth, it is said to be two-brooded. There are twocomplete circles or generations, hence th-e insect is two-brooded. I wnll illustrate by slides the various stages of the insect. Thelarva or worm is about three-fourths of an inch long when fullygrown, and of a pinkish color. In the fal
. Apple growing in the Pacific Northwest; a condensation of lectures, experiments and discussions. arva or worm, the pupa and the moth, and those four stages,taken together, form the circle, the generation of brood, and sincethat complete circle is finished or completed twice each year, from theegg to the codling moth, it is said to be two-brooded. There are twocomplete circles or generations, hence th-e insect is two-brooded. I wnll illustrate by slides the various stages of the insect. Thelarva or worm is about three-fourths of an inch long when fullygrown, and of a pinkish color. In the fall these larvae leave the fruitand seek some place in which to pass the winter, and it makes no differ-ence whether we are in the south, where the codling moth is three-brooded, or w^hether we are in the northeastern part of the United States,where it is one-brooded, or in Oregon, where it is two-brooded. It hasalwaj^s wintered in this state. It seeks some secluded spot under thebark, or in the crevices about warehouses or storehouses, anvwhere 138 GI{0\VI.\(i I.\ Tin-: PACIFIC NOUTUWKST. Oichard, near The Dalles, Oregon. that it can find shelter for winter, and there spins a little white silkencocoon, in whidi it passes the winter. If yon go into yonr oreliardand earefnlly search nnder the ])ark (in most of them yon will nothave to search very carefully), you will likely find under some of thescales these silken white cocoons, but yon Avill not find the insect thistime of the year. It will 1)e in the cocoon, Init it Avill s1ill \)o in thelarva or worm form. It will remain in that condition for some will not go into details right now. Later the larva changes to the pu}ia. and then to the moth. Xowin a general way w(> may say it will remain under the bark, dependingupon the climatic conditions, until late in February or possibly untilApril I. Then the larva changes from the pupa to a quiescent form inwhich it remains for a variable length of time, depending n]ion
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectapples, bookyear1911
