10 CONTENTS 



Cantaloupes and Melons. Leaf blight Downy mildew Anthracnose Wilt. 



Cucumber. Downy mildew Anthracnose Leaf blight and fruit spot Wilt. 



Celery. Leaf spot. 



Onion. Smut Downy mildew or blight. 



Parsnips. Blight. 



Potato. Late blight or downy mildew Early blight Wilt, stem rot and dry rot 

 Black leg Scab Little potato, rosette, stem rot, scurf Bacterial wilt 

 Tipburn. 



Tomato. Early blight Leaf blight Fusarium wilt Bacterial wilt Blossom-end 

 rot or point rot Anthracnose Fruit rot. 



Eggplant Pepper. 



Lettuce. Mildew Drop or wilt. 



Sweet Potato. Soft rot Black rot Stem rot. 



Peanut. Foliage and root diseases. 



Tobacco. Granville tobacco wilt Mosaic, calico or mottle top Leaf spots 

 Root rots. 



Chapter 19. INSECT PESTS AND THEIR CONTROL 224 



General Crop Insects. 



Caterpillars (leaf-eating) Cutworms Grasshoppers or locusts Leaf beetles 

 Plant lice White grubs Wire worms The army worm The fall army worm. 



Truck Crop Insects. 



The asparagus beetle Bean aphis Bean weevil, the common Other bean wee- 

 vils The beet army worm Beet leaf beetle, the larger The beet leaf hopper 

 Blister beetles The cabbage looper The cabbage maggot The Colorado potato 

 beetle Flea beetles Harlequin cabbage bug The hop aphis The hop plant 

 borer The imported cabbage web worm The imported cabbage worm The 

 melon aphis The potato tuber moth The squash bug Squash vine borer The 

 striped cucumber beetle Sugar beet web worm. 



Fruit Insects. 



Apple maggot or railroad worm Apple-tree tent caterpillar The brown-tail moth 

 Canker worm, the spring And the fall The cherry fruit flies The codling moth 

 or apple worm Currant worm, the imported The flat-headed apple-tree borer 

 The fruit tree bark beetle The gipsy moth The grape berry moth Grape leaf 

 hopper The grape-vine flea beetle The lesser apple worm The peach tree borer 

 Pear leaf blister mite Plant lice Plum curculio The rose chafer Round- 

 headed apple-tree borer The San Jose" scale. 



Chapter 20. INSECTICIDES AND FUNGICIDES j . . . 252 



Insecticides. 



Paris green Arsinate of lead Arsenate of zinc London purple White arsenic 

 Sulphur Lime-sulphur wash Tobacco extracts Pyrethrum White hellebore 

 Coal oil Crude oils Soaps Coal tar Borax Other insecticides Bisulphide of 

 carbon Carbon tetrachlorid Para-dichlorobenzene Hydrocyanic acid gas. 



Fungicides. 



Copper sulphate Bordeaux mixture Copperas or iron sulphate Formalin or 

 formaldehyde Bichloride of mercury Lime-sulphur wash. 



Combined Insecticides and Fungicides. 

 Literature. 



