CONTENTS, 



Page. 



Introduction 11 



Territory covered by th(! survey 12 



Physiograph)^ and soils 12 



Climatology 15 



Rainfall 15 



Temperature 16 



Evaporation 17 



Crops and native vegetation 18 



Fruits 18 



Truck crops 20 



Field crops 21 



Forage crops 21 



Native growth 21 



Relation of diseases to environmental factors 22 



Plan of the work 23 



Diseases of fruit trees 24 



Apple 24 



Apricot 25 



Date palm 25 



Fig 26 



Orange and lemon 27 



Peach 28 



Pear 29 



Persimmon 30 



Plum 31 



Diseases of small fruits 33 



Blackberry 33 



Dewberry 33 



Grape 33 



Strawberry 34 



Diseases of truck crops 34 



Asparagus 34 



Bean 34 



Beet 38 



Cabbage ' . . 38 



Carrot 39 



Casaba 39 



Cucumber 39 



Eggplant 39 



Globe artichoke 40 



Muskmelon 40 



Okra 41 



226 



5 



