INJURIOUS INSECTS 



fore-wings are white, with generally several rows of black spots ; there is 

 a yellow blotch at the base, and an orange band beyond the middle ; the 

 hind-wings are white, with black spots. The larva resembles the parent 

 in being white, with black spots. Emerging from the egg in September, it 

 feeds for a short time, then hibernates amongst the leaves and rubbish, 

 and reappears in the spring. During May and early June it feeds princi- 

 pally on Currant and Gooseberry foliage, but also on Raspberry and Black- 

 thorn. The pupa is black, ornamented with three orange rings, and is often 

 suspended upon the bushes. If the larva j appear in the autumn, powdered 

 quicklime should be dug in during early winter; in the early spring the 

 ground should be well hoed, and lime and soot applied ; spraying with Paris 

 Green in September will kill the young larva?. 



" Rose Maggots " are the larva? of several small moths belonging to the 

 Family Tortricidce, of which there are considerably over 300 British species, 

 the best-known being the Green Oak Tortrix. Spraying with arsenate of 

 lead will kill the larva? in the early stage, but the more general method is 

 to employ the tedious process of picking out or pinching the grubs in the 

 leaves, often after much damage has been done. 



The Frog-hopper, Frog-spit, or Cuckoo-spit Insect (PMlaenus (Aphrophora) 

 spumaria) is the most common of the seven British " Frog-flies." It attacks 

 the tender parts of plants, including the young shoots, leaves, and flower- 

 buds, sucking the juices, and thereby weakening the whole plant. Roses 

 are often badly attacked, especially when growing against a wall or fence. 

 The perfect insect is found from July to October. It is about \ in. long ; 

 the fore-wings are of a stout consistency and uniform in colour, and the 

 hind-wings transparent. It can jump a considerable distance. The larva 

 lives under a mass of spittle-like froth. Roses attacked should be well 

 syringed with plain water to remove the spittle, and then sprayed with 

 strong tobacco wash and soft-soap. For more hardy plants dilute paraffin 

 emulsion may be syringed. 



The Apple Sucker (Psylla mail) somewhat resembles some of the Frog- 

 hoppers in appearance and habits. It is a minute insect, but sometimes 



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