. Animal life in field and garden . Thecaterpillar is slightly hairy and of a uniform greencolor with no yellow stripes running lengthwise. CHAPTER XLVn FLIERS WITH WINGS OF GAUZE QUESTIONED as to the means to be adopted inorder to protect from their insect enemies thevarious plants he had mentioned in his last talk,Uncle Paul was forced to acknowledge the inade-quacy of any preventive measures at our command. *For protecting afew square yards ofcabbage-patch fromthese devourers, heexplained, a rigoroussearch for worms andan incessant chase af-ter butterflies on thatparticular piece ofland mig
. Animal life in field and garden . Thecaterpillar is slightly hairy and of a uniform greencolor with no yellow stripes running lengthwise. CHAPTER XLVn FLIERS WITH WINGS OF GAUZE QUESTIONED as to the means to be adopted inorder to protect from their insect enemies thevarious plants he had mentioned in his last talk,Uncle Paul was forced to acknowledge the inade-quacy of any preventive measures at our command. *For protecting afew square yards ofcabbage-patch fromthese devourers, heexplained, a rigoroussearch for worms andan incessant chase af-ter butterflies on thatparticular piece ofland might prove ef-fective; but how keepwatch over acres and acres, with butterflies andmoths of many kinds flying all about and alightingevery moment to lay their eggs? The cost of anysuch watchfulness would far exceed the value of thecrop. And so it is in general, with all raising offarm products on a large scale: when once the enemyis in possession it is all but impossible to drive himout if we depend on our own resources, however 343. Hessian Fly(Belonging to the order of Diptera)a, larva ; h, pupa ; c, infected wheat-stalk. 344 ANIMAL LIFE IN FIELD AND GARDEN much we may spend in the attempt. Because of theirinfinite numbers the insects always have the advan-tage of us. But fortunately there are others fightingfor us, and they wage valiant warfare against ourinsect foes, especially against worms and cater-pillars. *You mean the birds? asked Jules. ^Yes, and other equally useful helpers that youhave never heard of, notwithstanding the immenseservice they render us. I refer to the insects belong-ing to the order known as hymenoptera. ^Hymenoptera? Ive never heard that wordbefore. *And for that reason I hasten to explain its mean-ing to you. You are familiar with the honey-bee,the bumblebee, and the wasp. Like butterflies, theyhave four wings for flying; but these wings, insteadof being covered with scales—those scales that comeoff on your hand and look like dust—are simplymembr
Size: 1783px × 1401px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectnaturalhistory, booky
