. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 8 BULLETIN im, V. S, DEPARTMENT OF AGRICULTURE. XI6. Fig. 7.—Cross section of peach sho\\ing general shriveling of walls of egg cavity and separation of eggs. Drawing made one and one-half days after eggs were laid. (Authors' illustration.) egg cavity as the result of repeated egg laying by many females through the same opening in the skin. The larvse.—The eggs hatch into whitish larv?e, or maggots, that burrow or tunnel in all directions through the pulp, feeding as they go and causing decays to start
. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 8 BULLETIN im, V. S, DEPARTMENT OF AGRICULTURE. XI6. Fig. 7.—Cross section of peach sho\\ing general shriveling of walls of egg cavity and separation of eggs. Drawing made one and one-half days after eggs were laid. (Authors' illustration.) egg cavity as the result of repeated egg laying by many females through the same opening in the skin. The larvse.—The eggs hatch into whitish larv?e, or maggots, that burrow or tunnel in all directions through the pulp, feeding as they go and causing decays to start. When first hatched they are very difficult to detect, but when full growni they are very white and, although only four-sixteenths to five-sixteenths of an inch long, are quite easily seen. Full-grown maggots have the pecidiar habit, if taken out of the fruit and placed upon a smooth surface, of curling up and jimiping from 1 to 6 inches. For the general appearance of the larvse see figures 8 and 9, a. The impsd.—After leaving the fruit upon which tliey have fed, the larvse either burrow into the soil to depths varying np to 2 inches or seek shelter under any object upon the ground and there transform to the pupa or chrysalis stage. During this stage the insect is not able to move and re- sembles the seedlike object illustrated in figure 9, h. Altliough outwardly appearing quite dead, inwardly tlie wonderful changes are taking place by means of which nature transforms the ugly maggot into the beautiful fly; and in tlie course of a few days the adult fly breaks fortli from tlie pupa, pushes her way up tln'ough the soil, and, as the mother of a second gen- eration, flies back to the tree and searches for fruits in which to lay her eggs. INTERESTING FACTS ABOUT THE ADULT FLY. Incapable of infhcting bodily injury on man, the adult fly is, nevertheless, the fruit growers' most persistent enemy in Hawaii, for she is contin- uousl}^ searching for fruits in which to lay her eggs
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear
