82 



INJURIOUS INSECTS OF KANSAS. 



FIG. 45. TRANSFORMATIONS OF THE APPLE-TWIG BOKER; the figures, excepting /;, 

 which is natural size, are enlarged, the hair-lines at the side, in a, b, d, and <t, show- 

 ing the actual si/.e; a. the female beetle from above; b, outline side view of male 

 beetle; c, antenna, showing structure: rf, full-grown larva: e, head and antenna, and 

 /, the right legs of the larva; 0, front view of pupa, in outline: /i, twig, showing, above, 

 the larval burrow packed with castings, and below, the pupa in its cell. 



Thejlarvae transform to pupse in the burrows, and the insect ma- 

 tures in the fall or winter. The beetles burrow into fruit and 

 forest trees for protection and food, and may be found in them 

 head downward. 



The injuries done by the pest are to grape canes, into which it 

 bores as larvae, and to orchard trees, into which it bores as adult 

 beetles. 



Remedies. The dying twigs in winter, caused by the beetles' 

 burrows, should be collected and burned, thus destroying many 

 adults. 



All primings, diseased and dead vines should be carefully col- 

 lected in the vineyard and destroyed, thus taking away sought-:'"!- 

 breeding-places, and also, if done in the summer, destroying many 

 larv;o. 



x Xote*. In Report Kansas State Horticultural Society 



