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THE PESTS OF GARDEN PLANTS 



THE BEAN APHIS the Bean Plant Louse, or Black Dolphin 



(Aphis fabce^ Scop.). Our 

 illustration shows the wingless 

 female and pupa natural size 

 and magnified. The pupa is 

 black, with greyish white mot- 

 tlings, whilst the female is deep 

 greenish black in colour. This 

 insect commonly attacks the 

 young shoots and tops of 

 Broad Beans. It is well to 

 BEAN APHIS cu t o ff the infected tops and 



Aphis faba (pupa and female) 



burn them. 



AMERICAN BLIGHT should never be allowed to get ahead, for 

 neglect of it may result in the ruin of the orchard. Generally speak- 

 ing, it comes first on trees that are grafted on dwarfing stocks, 



especially the bad forms of the 

 Paradise Apple ; but it soon 

 spreads, and the healthiest 

 trees acquire the taint, and 

 once affected it is difficult to 

 restore them to health. We 

 have seen old trees restored 

 to youth by scrubbing them 

 with dandy brushes dipped 

 in hot brine. This must be 

 done during winter, or before 

 the trees come into leaf in 

 spring, and mats must be 

 spread to catch the splashes, 

 or they will kill the grass under 

 the trees. A careful pruning 

 should accompany the wash- 

 ing, and the prunings should 

 be burnt. In the course of 

 the summer the woolly pest will appear again, and should be extirpated 

 by carefully washing the patches with methylated spirit. Fir Tree 

 Oil Insecticide is a sure remedy for Woolly Aphis ; and pure water 

 will go some way towards cleansing the trees if well brushed into 

 the wounds this destructive insect produces in the bark of the trees. 



AMERICAN BLIGHT 

 Schizoneura lanigera 



