The Pests of Garden Plants 



deep greenish black in colour. This insect commonly attacks the 

 young shoots and tops of Broad Beans. It is well to cut off the 

 infected tops and burn them. 



The Pea Siphon-Aphis (Siphonophora pisi, Kalt). Amongst 

 the aphides peculiar to vegetables this is one of the most common. 



Our illustration shows the natural 

 size and an enlarged figure of the 



PEA SIPHON-APHIS 

 Siphonophora pisi 



greenish-winged and green-tinted wingless females, as produced, not 

 from eggs, but alive and developed. This insect is occasionally very 

 destructive to Pea crops. 



American Blight generally appears first on trees grafted on 

 dwarfing stocks, particularly the bad forms of the Paradise Apple. 

 Rapidly the mischief spreads, healthy trees become infested, and 

 unless checked an orchard is speedily ruined. Andrew Murray says 

 that in bad cases of American Blight it is sometimes necessary to 

 root up and burn all the trees, and let the ground remain unplanted 

 for a year or two. Fruit trees should be examined periodically 

 for this pest, and immediately the woolly spots are detected small 

 tainted boughs should be pruned away, and from the main 

 stems and large branches diseased spots can be pared off. The 

 operation may need a bold and vigorous hand if the trees are to be 

 saved, and it is important that every scrap should be burned. There 

 is almost certain to be a further appearance of the Blight, which 

 should be destroyed by one of the many remedies known to be 

 effectual. Fir Tree Oil Insecticide has proved to be an excellent 

 remedy. Gishurst Compound, in the proportion of eight ounces to 

 a gallon of water, with sufficient clay added to render it adhesive, 



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