PAGE 



Moths injurious to Roses (contd.) 



Yellow Rose Grub ... ... ... ... 50 



Rose Leaf-Miner ... ... ... ... 51 



Aphides, Scale Insects, Frog-Hoppers and Leaf- 

 Hoppers injurious to Roses (Hemiptcra) 52 



Green Fly or Rose Aphis 53 



Scale Insects ... ... ... ... ... 58 



Scurvy Rose Scale ... ... ... ... 60 



Frog-Hopper or Cuckoo-Spit Insect ... ... 62 



Rose Leaf -Hopper ... ... ... ... 64 



Thrips (Thysanoptera) ... ... ... ... 65 



Red Spider (Tetranychus sp.) ... ... ... 66 



Washes used for Rose Trees 67 



Fumigation with Hydrocyanic Acid Gas ... 69 



General Account of Insects ... 71 



Structure of a Typical Insect ... ... ... 72 



Respiration of Insects ... ... ... ... 75 



Growth and Development of Insects ... ... 75 



Complete and Incomplete Metamorphosis... ... 77 



Biting and Sucking-mouthed Insects 78 



Orders of Insects ... ... ... ... ... 78 



Rosarian's Pest Calendar 8 1 



Rose Tree Canker 84 



COLOURED ILLUSTRATIONS. 

 FUNGOID DISEASES. 



FACING PAGE 



PLATE I. Rose Mildew 12 



PLATE II. Rose Rust 16 



PLATE III. Black Spot 20 



PLATE IV. Rose Leaf- Scorch 24 



INSECT PESTS. 



PLATE V. 



1. Rose Beetle 30 



2. Cockchafer ... ... ... ... ... 30 



3. Garden Chafer 30 



