232 



tris), hawk fly {Erax hciHtardii) , also a ne^^'' species of Scelio, egg- 

 feeding beetle^ of the genus A/tiara, hirvie of Ilarpahts herhivagiis, 

 Say ( ?), Tachiiia flies, and flesh flies. 



During the earl}^ summer of 1889 at least twent}^ species of locusts 

 occurred in large numbers throughout Otter Tail County and other 

 parts of Minnesota. 



The need of additional legislation and of prompt, intelligent, and 

 concerted action by farmers is emphasized. 



BULLETIN Xo. 9, NOVEMBER, 3SS9. 



Russian willows and poplars, S. B. Green, B. S. (pp. 39-^7), 

 (illustrated). — In this are given descriptions of eleven species of pop- 

 lars and six species of willows from Europe and Asia, Avhich have 

 been grown at least five years in this State, with suggestions as to 

 their value for Minnesota. These trees may be used for wind-breaks, 

 timber, shade, ornaments, etc. In an experiment in growing cuttings 

 from these varieties in the spring of 1888, over 80 per cent of the 

 cuttings from all except three varieties rooted. Persons desiring to 

 plant cuttings are advised to select clean two-year-old wood, or strong, 

 Avell-ripened one-year-old wood from healthy, vigorous trees. Pieces 

 8 to 10 inches long and about one-half an inch in diameter are pre- 

 ferred. " It is generally best to make cuttings in the fall after the 

 growth stops." but they may also be rooted successfully if made early 

 in the spring. They should be planted in mellow soil, at least 8 

 inches deep, in rows '.^ feet apart. 



Insects afiecting poplars and avillov.s, O. Lugger, Pii. D. (pp. 

 48-64), (illustrated). — This contains popular accounts of the large 

 willow saw-fly {Chnhe-v americana) ^ yellow-spotted willow slug {Ne- 

 mattis ventrdlh)^ streaked cotton-wood leaf beetle (Lina scy'ipta)^ 

 Lina tremiiJ<i\ Lino Uippomea^ poplar borer {Saperda ealcarata), 

 poplar gird ler (Saperda coneoloy). Antiopa l)utterfly {Vanef^sa anti- 

 opa), fall web worm {Hypliantfia ciniea), Cecropia moth {Platy- 

 smnia cecropia)^ and American silkworm {Telea polypltemvs). A 

 Tachinid fly was observed to attack the large willow saw-fly. As 

 stated in Insect Life, \o\. II, p. 104, "' the work of the poplar girdler 

 is for the first time illustrated, and a number of dift'erent sjjecies of 

 Ichneumonida' are reijorted to have been bred from it. Acronycta 

 popidi, Riley, is made a synonym of .1. Icpiiseulina, (luenee, follow- 

 ing Grote ; but this is an error, the latter species, known to us, being 

 different in both larva and imago, and occurring on the Pacific 

 coast." 



