176 



" I/ife History. — The winter is passed by partly-grown iiidivicUmls. wliirh 

 become mature toward the last of June. This insect, like the pernicious scale, 

 is ovoviviparous ; that is, gives birth to living young, which begin to appear 

 about the last of the month, and continue to emerge for several weeks. This 

 species produces but one generation in this latitude, and this restriction alone 

 makes it much less dangerous than the preceding form, 



" Remedies. — Methods of value against the pernicious or San .Jose scale, 

 should prove equally effective with this species, and, as a rule, it will probably 

 be found much easier to control," 



The rEACH-TKEE Bakk-louse (Lccanium nit/rofaseiatum. Perg. : Lecanium 



pcrsicm, Fabr.) 



Adults at loft, .young at right. 



(Fig. 62a.) 

 -Bull. 3i, V. 



Department of Agriculture. 



It is found attached to the smooth bark of the peach twigs, frequently 

 hieside a bud. or at the base of a twig, appearing as a black hemispherical 

 shell, about the size and shape of a split pea ; its surface is uneven, shining, 

 commonly showing a pale margin, and a stripe upon the middle. It feeds upnu 

 the sap, piercing the bark with its proboscis, and imbibing the juices. When 

 mature, the removal of the scale discloses a multitude of eggs, which, in due 

 time, hatch, and the young larvre scatter over the twigs, and. fastening them- 

 selves to the bark, become permanently located, and live the full term of their 

 lives without changing their position, — Saunders. 



Remedy. — The treatment recommended for the Pear-tree Bark-louse. l)y 

 Saunders, is applicable for this insect, viz.: Fortunately these insects are of 

 such a size that they are easily seen. They should be looked for during the 

 latter part of June, at which time the females will have attained their full 

 size, and when discovered should be promptly removed. The under side of 

 the limbs should also be well scrubbed with a brush dipped in some alkaline 

 solution. 



