. Bulletin of the Department of Agriculture. Agriculture; Agriculture. CONTROL OF THE CODLING MOTH IN NEW MEXICO. 5 It would appear that with the minimum of three applications, made as shown in Table I, injury from the codling moth in the Pecos Valley may be reduced to less than 5 per cent of the total crop of apples produced. For each of the two additional applications an increase in sound fruit is shown, but probably not in proportion to the expense involved. It should be borne in mind, however, that in these experiments applications were made with much thoroughness, and unless the orch
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. CONTROL OF THE CODLING MOTH IN NEW MEXICO. 5 It would appear that with the minimum of three applications, made as shown in Table I, injury from the codling moth in the Pecos Valley may be reduced to less than 5 per cent of the total crop of apples produced. For each of the two additional applications an increase in sound fruit is shown, but probably not in proportion to the expense involved. It should be borne in mind, however, that in these experiments applications were made with much thoroughness, and unless the orchardist will do equally as thorough work it will be better for him to make the additional applications. PLACES OF ENTRANCE OF FRUIT BY CODLING MOTH LARVAE. Many observations in different parts of the country have shown that the majority of codling moth larvae normally enter the apple at. Fig. 3.—Showing condition of calyx lobes of Ben Davis apple: o, Two days after falling of petals; b, ten days after falling of petals. (Original.) the calyx end. A careful study of the places of entering sprayed fruit by larvae, whether at calyx, side, or stem, throws much light on the relative effectiveness of the respective spray applications. All experiments corroborate the statement that the treatment given immediately after the falling of the petals is by far the most im- portant one and that its omission can not be corrected by subsequent treatments, however thoroughly made. A study of the behavior of the calyx lobes of the recently set apples in the Roswell section furnishes evidence of value in timing spray applications. Ordinarily in the East there is a period of about 10 days following the dropping of apple blossoms during which 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 United States. Dept. of Agricultu
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