Séance du L'i Décembre 1916 113 



Parmi tous i-cs Colroplèrcs nous observons que les 

 Meloiilrs occupent une place prépondérante et <|u'en 

 général on j)eut dire (pie toutes ces captures se l'ont 

 pendant les mois d'Aviil, Mai, Juin. 



On the rate of increase of 



G eie chi a gossypiella larvae in green bolls 



during 1916. 



hv I)n. T.r.wis (ìoicìh. 



During the months .luly lo November an investiga- 

 tion has been cariied out by the Entomological Section 

 of the Ministiv ol Agriculture with the object of ascer- 

 taining the increase of severity ol the attai'k of (ìele- 

 chia lar\ae in green cotton bolls. 



The plan of the work included the weekly exami- 

 nation ol l()l> green cotton bolls troni each cotton-grow- 

 ing merka/. 



Tbe saiii|)les were taken by the Inspectorate Stall' 

 ol llie Ministiv. and were examined in llu' lùitomolo- 

 gical Laboratory 



In all oM-r IIÎO.IMK) bolls were examine»! l'or (iele- 

 chia and I'.arias Larvae. 



Uy Ibc iiliiisalion ol' Ilic llowci- counts nia(l(> bv 

 Ml. Holland in connection with cotton br(>eding, it has 

 been possible to constiiict a curve showing the aveiage 



