174 



Index 



psyUids, 168 

 roaches, 85, 152 

 sawflies, 169 

 silverfish, 159 

 tent caterpillars, 132, 169 

 termites, 124, 160 

 thrips, 166, 167 

 ticks, 127, 160 



American dog, 127, l6l 

 brown dog, 127, 160 

 fowl, 128, 160 

 tuber flea beetles, 168 

 wasps, l6l 

 weevils, 168 

 Darwin, 142 



Deaths, due to, bubonic plague, 6, 9 

 poliomyelitis, 106 

 spotted fever, 27 

 typhus, 11-14 

 yellow fever, 23 

 in World War II, 4 

 Defoliating insects, control of, 169 

 De Jonge, Major, 33 

 Dengue, 113, 120 

 Destruction of agricultural crops by 



insects, 3 

 Diamond-back moth, control of, 165 

 Dichloro-diphenyJ'trichloroethane, 



40 

 Dips, for cattle, 111, 157 

 for goats, 157 

 for hogs, 157 

 for sheep, 88 

 Dog ticks, control of, 127, 160 

 Dove, W. E., 34 

 Du Pont Co., 39, 131 

 Djsts, agricultural, 69, 88, 165 

 Dutch elm disease, 133 

 Dysentery, 13, 26, 104 

 during Crimean War, 13 



Edison, Thomas, 74 



Elm leaf beetle, control of, 169 



Emulfor, 87 



Emulsifying agents, 86, 87 



Emulsions, 86 



of DDT, 68, 86, 87, 154, 156 

 Encephalitis epidemics, 28 

 England, plague epidemic in, 5 

 English sparrow, 137 

 Epidemics of, encephalitis, 27 



malaria, 16 



plague, 5-10, 12 



poliomyelitis, 26, 106 



typhus, 1, 11-14 



yellow fever, 22 

 Europe, plague epidemic in, 5, 



encephalitis, epidemic in, 28 



typhus epidemics in, 11-14 

 Evergreen bagworm, 169 



Ferdinand and Isabella, 11 

 Fever, camp, 10 



jail, 10 



ship, 10 



spotted, 10 



typhoid, 25 

 Filariasis, 113 

 Firebrats, control of, 159 

 Fish, effect of DDT on, 61 

 Flea hopper, control of, 166 

 Fleas, 124 



as carriers of plague, 7, 124 



control of, 85, 124, 153 

 Flies, 103, 110 



control of, 107, 154 

 in barns, 107, 111, 154 

 in buildings, 154 

 in dairies, 110 



