PROCEEDINGS OF THE THIRD ENTOMOLOGICAL MEETING 



B.— Black-awn :- 

 13th-14th May 1916 



ISth May 1916 . 

 6th July 1916 



15th March 1917 . 

 22nd January 1918 

 5th May 19 IS 



7th November 1918 

 18th February 1919 



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 morning 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 ISJ oz. 

 The germinating power of the grains was lost. 



C— Pusa No. 6 ; 1 lb. 1 oz. dried in tlie sun for full three days, 

 reduced to about 1 lb. | oz. : — 



Weight 



12th- 14th May 1916 



15th May 1916 

 6th July 1916 



15th March 1917 . 

 21st January 1918 

 6th May 1918 

 7th November 1918 



stoppered jar which is opened occa- 

 the grains to absorb moisture from 



1 lb. of this kept i 



sionally to allov 



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. i oz. ; slightly damaged ; 414 weevils 



picked out. 

 92 per cent, of the grains 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 kept 

 in stoppered jar which is opened occasionally to allow 

 the grains to absorb moisture from atmosphere. 



. 20 weevils put in. 



. Unaffected. 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. 

 Weights lib. J oz. 



. Unaffected, 

 germinated when tested in December 1916. 



