536 PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



Plot III. Wheat. 



5 cm. Pit. — 1,000 bolls ; very few broken up ; condition good. 

 Found 123 live Pink BoUworm larvse."^ 



2 live pupae. [■ many larvae in the tough cocoons. 



14 empty pupa cases. j 



10 cm. Pit — 1,000 bolls ; not much decayed and a few only broken up. 

 Found 21 live Pink Bollworm larvae. 

 5 live pupae. 

 10 empty pupa cases. 

 15 cm. Pit. — 1,000 bolls — very roughjy about 40 per cent, not broken up ; decayed 

 on the outside. 

 Found live Pink Bollworm larvae. 

 1 live pupa. 

 8 empty pupa cases. 

 20 cm. Pit. — 1,000 bolls ; not badly decayed, but many broken up — 

 Found 1 live Pink Bollworm larva. 

 1 live pupa. 

 4 empty pupa cases. 



Bolls Removed 30th June 1917. 

 Plot I. Bersim. 



Note. — The bersim was not cut until 1st July so soil still had shade of crop^up to- 

 30th June. 



5 cm. Pit. — 1,000 bolls ; very much decayed and mostly broken up. 

 Found Uve Pink Bollworm larvae. 



pupae alive. 



1 empty pupa case. 



10 cm. Pit. — No time to examine bolls. Had to be put in cages. Results calcu- 

 lated from moths which emerged. 

 Found 1 live Pink Bollworm larva. 

 pupae. 



empty pupa cases ? 



15 cm. Pit. — Bolls not removed until 31st July. Other work interfered with 

 this experiment. Nothing emerged from these bolls which were kept in 

 cages. 



20 cm. Pit. — Same as 15 cms. plot. 



Plot II. Bare Fallow. 

 5 cm. Pit. — 1,000 bolls ; condition of bolls good. 

 Found 13 live Pink Bollworm larvae. 

 10 live pupae. 



1 empty pupa case. 



12 dead larvae found — dried up. 



2 dead larvae stiU soft. 



10 cm. Pit. — Bolls kept in cages. From dates moths emerged 3 Pink Bollworm 



larvae must have been aUve on 30th June. 

 15 cm. Pit. 7 1,000 bolls removed on 31st July and kept in cages. No moths 

 20 cm. Pit. ) emerged. 

 But this does not indicate for certain that no living Pink Bollworms were present 



on 30th June. 



