310 Wisconsin State Horticultural Society. 



of other species of the family, which are known to prefer the bark 

 of trees and the woody stems of plants that are sickly from one 

 cause or another. I have found this insect in all three stages 

 of larva, pupa and adult up to the time of frost (represented by b, c 

 and d, in figure 10). though the perfect beetles at this season very 

 greatly predominate. The insect hibernates in any of these stages, 

 and continues propagating as spring opens, the beetles issuing from 

 the ground and pairing during the early spring month?. The 

 female then instinctively bores into the crown of the root, eating 

 a pretty large cavity, wherein she deposits from four to six, pale, 

 whitish elliptical eggs. These hatch in about a week, and the 

 young larvas at first feed in the cavity made by the parent. After 

 a fews days, however, they begin to burrow downward, extending 

 to the different branches of the root. The galleries made in bur- 

 rowing run pretty regular along the axis of the roots, as seen at a, 

 «, a, in figure 10, and are filled with brown excrements. The 

 pupa is formed in a smooth cavity, generally at the end of one of 

 these burrows, and may be found in small numbers as early as 

 September. 



"The clover seed is usually sown in the spring, while the snow 

 is yet on the ground or the frost disappearing. The clover is 

 allowed to go to seed in the fall, and usually produces but little. 

 During the second year one crop of hay and a crop of seed are 

 obtained. It is during this second year that the injury of the 

 Hylesinus is most observed. No experiments have yet been 

 made with a view of preventing the injuries of this clover pest, 

 and no other mode of prevention suggests itself to my mind than 

 the plowing under of the clover in the spring of the second year, 

 if the presence of the beetle is observed." 



This pest will doubtless soon reach this state, if it has not done 

 so already, and farmers should be on the lookout and turn under 

 the field as soon as signs of its presence may be discovered; and 

 in this way, taken while few in number, and only here and there 

 a field infested, they may effectually hold the enemy in check. 



FUNGUS IN LIVING PLANTS. 



The subject of fungus growths and mildew is one of much im- 

 portance, and one concerning which, much is said while but little 



