. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. n 38 r^T rr\T^ xrrs t^i-^xt -m^r^ I x-v -r 'W~\ T-^ -»- y^ « r^»-^ -»- yâN â » \^ rr^uii;^ uiNUi^i^ iKKiLjAiiUiN SZ4t the first molt marked differences occur. The male is narrower and smaller than the female. The male molts again 10 or 12 days after the first molt and passes into the propupal stage. At this stage the true appendages of the male are not fully developed. After 8 or 10 days in this stage, the male changes into the true pupal stage. It remains in this stage for a similar length of time and the true appenda
. Cirtus fruits under irragation. Citrus fruits; Fruit-culture. n 38 r^T rr\T^ xrrs t^i-^xt -m^r^ I x-v -r 'W~\ T-^ -»- y^ « r^»-^ -»- yâN â » \^ rr^uii;^ uiNUi^i^ iKKiLjAiiUiN SZ4t the first molt marked differences occur. The male is narrower and smaller than the female. The male molts again 10 or 12 days after the first molt and passes into the propupal stage. At this stage the true appendages of the male are not fully developed. After 8 or 10 days in this stage, the male changes into the true pupal stage. It remains in this stage for a similar length of time and the true appendages, such as wings, legs, etc., are fully developed. The adult male issues as a winged insect about 60 days after birth. The female scale, about 26 days after the first molt, molts again and comes to maturity so far as molting is concerned. The female is fertilized by the male scale as soon as she is. Fig. 15 mature, which is in about 60 days after birth during the summer months. In about 15 days after being fertihzed the female begins to deposit eggs, the process continuing for 3 or 4 weeks. The female then dies. It will be seen that the period of develop- ment is short. In summer the young larvas begin to appear in about 80 days from the time the parent was a larva; in winter the time from larva to larva may be as long as 120 days, which is the maximum. Three or four generations appear each year. The relative size and shape of the female and the male is illustrated in Fig. 14, which shows them magnified about twenty-seven times; the male is shown at the right and the female at the left. § 24 CITRUS FRUITS UNDER IRRIGATION 3& in F^f 1^!!^"' If,''"^ ^''^'''^ "â "" '^°'''' °" twigs and leaves Ih!. f; ' I- ^^"""^ °" '^"^ ''"'S'" I'ig- 15 are enlarged about four times; those on the leaf in Fig. 16, about five or six times; and those on the leaf in Fig. 17, about two and one-half times. Th
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Keywords: ., bookcentury1900, booksubjectcitrusfruits, booksubjectfruitcultur
