PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



745. 



B. — Black-awn :- 



13th-14th May 1916 



15th May 1916 

 6th July 1916 



15th March 1917 . 

 22nd January 1918 

 5th May 1918 



7th November 1918 

 18th Febraary 1919 



C— Pusa No. 6 ; 1 lb. 

 reduced to about 1 lb. ^ 

 12th-14th May 1916 



15th May 1916 

 6th July 1916 



15th March 1917 . 

 21st January 1918 

 6th May 1918 

 7th November 1918 



92 per cent, of the grains 



1 lb. dried to 0" moisture. 

 Weight reduced to 14 oz. 171 grains ; 14 oz. kept in 



stoppered jar, occasionally opened, thus allowing the 



grains to absorb moisture from atmosphere. 

 20 weevils put in. 

 Weight 14 oz. 160 grains. Unaffected. All the weevils 



dead. Wheat spread out for 1 hour after which 



weight= 14 oz. 200 grains. 

 Wheat unaffected. 20 weevils put in. 

 Wheat unaffected, the 20 weevils dead. 

 Unaffected. Weight 15 oz. less 170 grains. Left exposed 



till morhiiag of 6th May 1918 when weight =15 oz. 



Put back in stoppered jar with 40 weevils. 

 Unaffected, 38 weevils picked out dead. 

 Unaffected. All weevils dead, weight \o^ oz. 

 The germinating power of the grains was lost. 



1 OZ. dried in the sun for full three days. Weight 

 oz. : — 



1 lb. of this kept in stoppered jar which is opened occa- 

 sionally to allow the grains to absorb moisture from- 

 the atmosphere. 



20 weevils put in. 



Weight= 1 lb. 155 grains. 



Wheat unaffected ; the 20 weevils dead. 



The wheat exposed to ordinary atmosphere as long as 

 it took to pick out the weevils and then put back in 

 the stoppered jar. 



Unaffected ; 20 weevils put in. 



Unaffected ; 20 weevils dead. 



Unaffected ; 40 weevils put in. 



Weight 1 lb. J oz. ; slightly damaged ; 414 weevils 

 picked out. 

 germinated when tested in December 1916. 



D. — Black- awn :- 



12-14th May 1916 



'15th May 1916 

 6th July 1916 



15th March 1917 . 

 22nd January 1918 

 6th May 1918 

 7th November 1918 



18th February 1919 

 Cent, per cent, seeds 



1 lb. 1 oz. dried in the sun for full three days. Weight 

 reduced to about 1 lb. ^ oz. One pound of this kejot 

 in stoppered jar which is opened occasionally to allow 

 the grains to absorb moisture from atmosphere. 



. 20 weevils put in. 



. Unafl'ected. Weight=l lb. 115 grains. All the 20 

 weevils dead. The wheat was spread out to pick the 

 weevils and remained exposed as long as it took to 

 pick out the weevils. 



. Unaffected ; 20 weevils put in. 



. Unaffected ; 20 weevils dead. 



. Unaffected ; 40 weevils put in. 



. Unaffected ; 38 weevils dead. 

 Weight = 1 lb. J oz. 



. Unaffected, 

 germinated when tested in December 1916, 



