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COMPANION TO TROPICAL READERS 



figure, put a caterpillar, with some leaves of the plant 

 on which it was found feeding. Give it as much food 

 as it will eat from day to day, and watch. Record the 

 date on which it turns into a chrysalis, and also when 

 the adult insect (butterfly or moth) emerges (fig. 30). 



EGGS (ova) 



CHRYSALIS ( PUPA) 



CATERPILLAR (LARVA) 



MOTH (IMACO) 



Fig. 30. Development of a Moth (the eggs on the left of the leaf are 



highly magnified) 



Expt. 142. Damage done to Corn by Grub inside. 

 Open some grains of corn attacked by the corn weevil, 

 and observe the white grub inside that does the damage. 



Expt. 143. List of Insect Pests in District. Compile 

 a tabulated list of plants that are attacked by insects. 

 Record 



(a) Name of plant. 



(b) Name of pest. 



(c) Nature of damage. 



(d) Remedy found effectual. 



