EXPERIMENT STATION BULLETINS. 



259 



OTHER SUGAR EKET INSECTS. 



Fig'. 11. L'ncumheT heette, Biabrotica vittata. (Original.) 



The cucumber beetle i Diabrotica vittata) Fig. 11. This well known insect was 

 sent to us on one occasion from the western part of the State, together with a number 

 of flea-beetles, as infesting the sugar beet. It has not been found by us or reported 

 as injurious to any great extent. 



The large-eyed ground-bug {Gcocoris bullata) was sent to us as having been found 

 on sugar beets. It is mentioned by Professor Lawrence l?runer, of Nebraska, as occur- 

 ring under the same conditions. 



The tarnished plant-bug {Lt/gus pratcnsis) . Af/a1lia sanf/uineolenta, Prov..* and 

 Phlepsius irroratus. Say.,* were collected at Buchanan on the beets. Prof. Herbert 

 Osborn says, in a letter, "The Agallia has been recorded on sugar beets two or three 

 times and may be troublesome." 



It is probable that the insects of this last sort will not ever multiply so as to become 

 very dangerous pests. The cleanest of clean culture, which sugar beets should have in 

 order to get the best results, is bound to be of use against them, as they feed on 

 weeds in nature, and if the weeds are removed in tlie field and along fences, waste 

 places, etc., and all such places are kept cultivated, these natural feeding and breeding 

 grounds will be destroyed and the insects will be kept in check. 



The yellow bear ( Spiloftoma rirginica) . Several larvae of this species were found 

 in the beet field at Three Rivers. It is one of the common garden caterpillars, not 

 ordinarily dangerous and readily controlled by a spray of Paris green. 



* These two insects were kindlv determined bv Prof. Herbert Osborn of the Ohio State University. 



