Insects, etc., Injurious to the Peach. 



323 



by a single individual. The females reproduce without the agency 

 of the male in this country. The larvte are yellow or pale red 

 when first hatched and become dark 

 greenish to greenish-yellow or pale 

 reddish and emit very long and fine 

 glass-like filaments from both ex- 

 tremities. 



They wander over the shoots and 

 foliage where they take up their 

 abode ; Xewstead finds that some 

 may be still seen migrating in the 

 autumn. They pass the winter as 

 full-fed larvse, scarcely visible to 

 the naked eye, and moult in spring 

 when growth becomes very rapid, 

 and the mature female form is soon 

 produced. The ova are almost 

 white. The winged male has not 

 been seen in this country. It seems 

 to be the young tender shoots of 

 the peach that are attacked, and 

 there on the green wood the scale 

 insects soon produce discoloration 

 and the shoots die away. 



Those that get on to the leaves, 

 of course, fall with them and die. 



[K. Xetcxtead. 



FIG. 215. THE BROWN SOFT SCALE 

 (Lecaniuiit-perxicif) ON PLUM. 



TREATMENT. 



The best thing in peach houses is sponging with paraffin emulsion 

 in winter or spraying with the same. Good results have been reported 

 of the use of caustic alkali wash. Many gardeners have told me this 

 has been quite successful as a winter dressing. 



REFERENCES. 



(1) Newsteacl, E. ' A Monograph of the British Coccidse,' vol. II., p. 89 (1903). 



(2) Fernald, Maria E. ' A Catalogue of the Cocriche of the World,' p. 19 



(1903). 



