000			02552nab a22003137a 4500
001			G68955
003			MX-TxCIM
005			20230516153059.0
008			121211b |||p||p||||||| |z||| |
022			_a0022-0493
022			_a1938-291X (Online)
024			_2https://doi.org/10.1093/jee/9.1.182
040			_aMX-TxCIM
041			_aeng
090			_aREP-347
100	1		_aParker J.R. _930827
245	1	4	_aThe western wheat aphis (Brachycolus Tritici Gill.)
260			_c1916. _aUnited Kingdom : _bOxford University Press,
340			_aPrinted
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0022-0493
520			_aThe Western wheat aphis was originally described by Professor Gillette in Entomological News for December, 1911. Concerning it he remarks, "This is seemingly a rather rare species occurring upon grasses and has been taken several times by L. C. Bragg upon the leaves of blue stem (Agropyron glauC'Um) and upon wheat during the summer months in the vicinity of Fort Collins." In Montana this insect first attracted attention in 1910 when reports came to the experiment station that a plant louse was destroying winter wheat in a few localitiesin Fergus County. An investigation of these reports brought out the fact that more injury was being one than we had believed a grain plant louse capable of doing. In one instance grower who had 700 acres of wheat estimated his loss due to wheat aphis at 5,000 bushels. Another grower had 80 acres of winter wheat so badly injured that no attempt was made to harvest it. Since 1910 the Western wheat aphis has become increasingly abundant in Fergus County and has appeared in injurious numbers in several other counties. During the. past two seasons in Montana, with the exception of the army cutworm (Chorizagrotis agrestis Grote), it has ranked as the most destructive insect pest of winter wheat. Since economic entomological literature contains no account of the Western wheat aphis, and because of the great economic importance of its host plant, this paper has been prepared to bring together some of the facts which have been learned about this new pest of wheat.
546			_aText in English
595			_aRPC
650		7	_2AGROVOC _91310 _aWheat
650		7	_2AGROVOC _927718 _aAphididae
650		7	_2AGROVOC _93760 _aPest insects
773	0		_tJournal of Economic Entomology _gv. 9, no. 1, p. 182-187 _dUnited Kingdom : Oxford University Press, 1916. _wG444522 _x0022-0493
942			_cJA _2ddc
999			_c19604 _d19604