Insects injurious to fruits . occupied by a small, milk-white, footless grub,with a pair of brown, liooked jaws, a smooth and glossy skin,with a few very line, short, white 308 shows this larva highly mag-nified ; the small figure beneath indicatesits natural size. The larva changes to a pupa witliinthe seed during the spring months, and in July emerges as afly, escaping through a small, irregular hole. The fly so much resembles that shown in Fig. 309 (whichrepresents a closely-allied form belonging to the same genus)that it is difficult to distinguish between ^^- °^^ the two ; a re
Insects injurious to fruits . occupied by a small, milk-white, footless grub,with a pair of brown, liooked jaws, a smooth and glossy skin,with a few very line, short, white 308 shows this larva highly mag-nified ; the small figure beneath indicatesits natural size. The larva changes to a pupa witliinthe seed during the spring months, and in July emerges as afly, escaping through a small, irregular hole. The fly so much resembles that shown in Fig. 309 (whichrepresents a closely-allied form belonging to the same genus)that it is difficult to distinguish between ^^- °^^ the two ; a representsthe female, b the male,c the antenna of thefemale, d that of themale, e the abdomenof the female, showingthe segments or ringsof the body, / that ofthe male. All thesefigures are highlymagnified; the shorthair-lines underneaththe flies indicate thenatural size. The fly is black; the head and thorax arefinely punctated with minute dots; the abdomen is long andsmooth, with a polished surface, and is placed on a st irt. 298 INSECTS INJURIOUS TO THE GRAPE. pedicel. The parent insect probably deposits her eggs on theskin of the grape, and the yonng larvae, as soon as hatched,puncture the skin and work their way to the seed, which theyenter while it is young and soft. Many of the affected grapeshave a small scar on their surface, which may indicate wherethe insect has entered. Should this tiny foe ever become so troublesome as torequire a remedy, the best one suggested is that of carefullygathering and destroying the shrivelled fruit. No. 171.—The Grape-berry Moth. Eudemis botrana (Schiff.). This insect is an imported species, and has long been in-jurious to grape-culture in the south of Europe. The exactperiod of its introduction to America is not known, and it isonly within the past few years that attention has been calledto its ravages. When abundant, it is very destructive; insome instances it is said to have destroyed nearly fifty percent, of the crop. The young larvs
Size: 1617px × 1545px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidin, booksubjectinsectpests
