200 



INSECT PESTS 



Notifiable diseases, 29, 124, 136, 



144 

 Nut Weevil, 92 



Oil Beetle, in bee-hives, 34 



its life-history, 57 

 Orange Tip Butterfly, 16 

 Old Red Sandstone and fruit 



growing, 152 

 Onion Fly, 69 



Fungus, 144 

 Oomycetes, or parasitical disease 



fungi, 129 

 Orchard pests, 73-93 

 Organic manures, 175 

 Orthoptera or Straight- wings, 14 

 Owls, \iBeful work of, 45, 116 

 Ox Warble Fly, 24 



Parasites, helpful, 91 



human, 183, 184 

 Parasitism, 181, 183 

 Parsnip pests, 69 

 Parthogenetic females, 76, 77, 121 

 Peaches, 123 



Peacock Butterfly, 17, 54, 186 

 Peas, 67, 140 



maggoty, 67 



Moth, 67 

 Pear Midge, 86 



Scab, 145 



Tree Bug, 13 



and Cherry Sawfly, or Slug- 

 worm, 87 

 and Plum pests, 86, 87, 88 

 Peat Soil, 157 

 Pest question, 55, 57, 179 

 Pests, indigenous and exotic, 18 



why do they come ? 18 

 Phosphorescent insects, 103 

 Phylloxera vastatrix, or vine louse, 



112, 120 

 Pig troubles, 32 

 Pill insects, 12, 13 

 Pineapples, 123 

 Pith Moth, 86 

 Plant Lice, 14 



mechanism, 168, 175 

 Plants, chemical analysis of, 168 

 Plum Aphis, 192 



Tree peats, 87 



Plume Moths, 117 



Pod Canker of scarlet runners and 



French beans, 138 

 Pond Skaters, 14 

 Potatoes, 70 



Blight, 134 



Corky Scab, 136, 137 



disease, 132, 134 



disease resisters, 136 



Dry Rot, 134, 136 



Skin Spot and Silver Scurf, 137 



times for spraying, 135 



traps for soil insects, 98 



Wart disease, 136 

 Poultry, external parasites, 32 



internal parasites, 32 



useful employment of, 87, 89, 

 99, 102 

 Powdery Vine Mildew, 122 

 Protective Colouring, ?l 

 Protomycetes or first fungi, 129 

 Protoplasm, basis of all life, 133, 



168 

 Pupae, searching for, 79, 87 



Queen-bees, parasites of, 35 



Raspberry Moth, 88 



pests, 88, 89 



and Loganberry diseases, 148 



or Clay-coloured Weevil, 90 

 Rats, as pests, 44 



Old English and Prussian, 18 

 Red Admiral Butterfly, harmless 



insect, 17 

 Red Spider or Spinning Mite, 112, 



122, 123 

 Red Water in Calves, 23, 32 

 Remedies, natural and artificial, 



19, 181 

 Reproduction of cells, 172 

 Ribbon-footed Com Fly, 40 

 Root crops, 46-52, 63, 68, 70 

 Roots, functions and uses of, 160 

 Rose Aphis, 13, 192 



Chafer, on strawberries, 93 

 Rosy Rustic Moth, 70 

 Rotation of crops, 174, 175, 177 



Tables, 176 

 Rove Beetles, 62, 104 



