CONT E N T S 



Chapter 



Preface ... ... 



List of I'i.ai i.s 



List oi li kt-I igures ... 

 I. Definition and Structure of Insects 

 II. Classifk ition am' Nomenclature ... 



III. Metamorphosis... 



IV. Means oi Defence in Insects 

 V. Communication amongst Insects 



VI. ["ropisms ... 

 VII. Insects and Plants 



VIII. Symbiosis and Parasitism 



IX. The Balance oj Lifi 

 X. Insect Pests 

 XI. The Control oj Insect Pests of Crops : — 

 Agricultural Methods ... 

 Mechanical Methods 

 [nsecticidal Methods 

 Stomach Poisons 

 i ontact Poisons 

 Repellents 

 Spraying Machinery 

 I'm Sei i ct ion oj Sprayers 

 The I Spra\ i rs ... 



I I M Ml. I HODS ... 



Appendix oi Weights vnd Measures 

 XII. The Classification of Pests ... 

 MIL Caterpillar Pests oj Crops ... 

 XIV. Grasshoppj rs, Crii kets and Termites 



XV. Bug Pj 



XVI. Beetle Pests of Crops . . 

 XVII. Fly Pesi 

 XVIII. Pesi d ] cts 



\ l \. Hoi si hoi d Pj 



XX. In-i.< i - and l Disease ... ... 



XXI. Bj mi iciai Insects ... ... 



XXII. Useful Insects ... 

 Will. Some other Animals 



Ii-i oi I rops with iiik Insects which attack 



EACH ... 



17 

 27 



35 

 47 

 53 

 59 

 65 

 71 

 7 I 

 81 

 82 

 88 

 95 

 "7 

 101 



i°5 

 106 



1 if. 

 1 I.S 



119 

 126 

 128 



'3° 

 1.57 

 '45 



I IM 



■57 

 160 

 169 



177 

 "M 

 205 



-•' I 



240 



