A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . 12 3 Fig. 24.—Round-headed Apple-tree Borer {Saperda Candida): 1, larva; 2, pupa; 3, imago. [AfterRiley.] beetles of the family Cerambycidce. They are shown in figure borers usually bore directly into the heart of the wood and there 154 INSECT ENEMIES OF THE do much injury to the trees which they infest. Some of these borersare described more fully be
A preliminary introduction to the study of entomologyTogether with a chapter on remedies, or methods that can be used in fighting injurious insects; insect enemies of the apple tree and its fruit, and the insect enemies of small grains . 12 3 Fig. 24.—Round-headed Apple-tree Borer {Saperda Candida): 1, larva; 2, pupa; 3, imago. [AfterRiley.] beetles of the family Cerambycidce. They are shown in figure borers usually bore directly into the heart of the wood and there 154 INSECT ENEMIES OF THE do much injury to the trees which they infest. Some of these borersare described more fully below, where the remedies are given for Fig. 25.—Oviposition and exit of the Round-Headed Apple-irce Borer : a, wound where esg isdeposited ; b, s ime, with the wood split lengthwise along the line (a, e), and turned so as toshow an ejrg in place; c, same, with ihe bark split on the same line and removed to the left,80 as to show Ihe manner in which the egg is commonly thrust to one side under ihe bark; d,the egg, enlari;ed ; e, hole of exit of beetle ; /, (he same, as it appears from the side when splitalong the line (a, t); g, ihe burrow, as il appears while the insect is in the pupa state, and be-fore the baik is perforated. [After Riley.] TWIG GIRDLER AND TWIG PRUNERS. Not unfrequently do we find limbs and small branches of our fruittrees lying upon the ground where they have fallen during ordinarywind storms. An examination shows that they have been cut off bysomething or other, but just what this something has been is a mys-tery to most of us. A reference to the accompanying illustrations(Figs. 26 and 27), will at o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1894
