1899] 



RASPBERRY STEM-BUD CATERPILLAR. 



119 



The caterpillars are of such a great size for some time before they 

 have attained their full growth that, when the operator's eye has 

 become accustomed to distinguish between their green tints and that 

 of the leafage, they may be very easily hand-picked off trees still small 

 enough to lie much under their powers of doing mischief. Attention 

 would be drawn to some creature requiring removal being present, by 

 the gnawed state of the leafage, and whether in the black and yellow 

 or purplish and green condition it should be cleared. 



RASPBERRY. 



Raspberry Stem-bud Caterpillar. Lampmnia ruhiella, Bjerk. 



Lampronia eubiella. — Moth, magnified, and with lines showing natural size ; 

 caterpillars, natural size, and somewhat magnified from life ; caterpillar and 

 chrysalis, greatly magnified, after Prof. J. 0. Westwood. 



The attacks of the little red caterpillars of the small moth (figured 

 above) scientifically known as the Lampronia rubiel/a sometimes cause 

 serious damage by their workings within the buds and young shoots 

 on the Easpberry canes early in the season. The mischief is begun in 

 spring by the young caterpillars (which have lived in caterpillar state 

 throughout the winter) making their way into the young leaf-buds, 

 and, as the season advances, the injury that is going forward becomes 

 very noticeable by the fading of the young shoots which have grown 

 from attacked buds, or are themselves undergoing attack. 



The infestation is not of yearly recurrence to an important extent, 

 but it is one of long standing, certainly since as far back as 1853. It 

 has only twice been reported to myself as serious, namely, in 1883, and 



