. Bulletin of the Department of Agriculture. Agriculture. MEDITERRANEAN FRUIT FLY IN HAWAII. 47 South Africa and Australia by other investigators. Gurney, of New South Wales, lists the apple among host fruits occasionally infested. Wickens, in 1914, in western Aus- tralia, writes that "the apple growers who have been hoping that they would not suffer so severely as growers of soft fruits are now becoming seriously alarmed at the presence of fruit-fly punctures and larvae in their export varieties of apples. For- tunately the two apple-producing centers of the State (Bridgetown and Mo
. Bulletin of the Department of Agriculture. Agriculture. MEDITERRANEAN FRUIT FLY IN HAWAII. 47 South Africa and Australia by other investigators. Gurney, of New South Wales, lists the apple among host fruits occasionally infested. Wickens, in 1914, in western Aus- tralia, writes that "the apple growers who have been hoping that they would not suffer so severely as growers of soft fruits are now becoming seriously alarmed at the presence of fruit-fly punctures and larvae in their export varieties of apples. For- tunately the two apple-producing centers of the State (Bridgetown and Mount Baker) are free from the ; Lounsbury, in South Africa, writes that "ordinarily only peaches, nectarines, and pears are severely infested, but last year apricots, figs, pears, plums, apples, and quinces were almost all ; Newman states that in western Australia eggs deposited in undeveloped apples and pears rarely hatch and that if they do the larvae die. The senior writer found apples grown throughout eastern and southern Spain quite generally infested during 1916. The writers have used apples extensively in their experimental work and have found them an excellent fruit for securing large numbers of larvae and eggs for temperature studies. The firmer apples, if not overinfested, serve better than any fruit as a medium for car- rying the pest along within the laboratory for considerable periods. Some fruits become too moist and these are not satisfactory. For one type of infestation see Plate I, figure 2, and Plate XI, figure 65. Pear (Pyrus spp.). Fig. 4.—Small apricot, natural size, show- ing eggs of the Mediterranean fruit fly deposited in five places. (Original.) There are few pear trees grown in yards in Honolulu. The fruits are generally and badly infested, the interior often becoming badly eaten out by larva* while the exterior appears unaffected. Often fruits, entirely destroyed, may dry-up and remain attached to the tree. Such a fru
Size: 1689px × 1480px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
