. Circular. Insect pests; Insect pests. 19 EXPERI3IENTS IN DESTROYIXG GREEN BUGS OVER SMALL AREAS. On leaving Washington both Mr. Ainslie and Mr. Phillips were instructed to place themselves in the position of a farmer whose grain fields were beginning to show the j^resence of the " green bug"' by small deadening spots, and to leave nothing undone or untried that Avould seem to afford relief and save the crop. Mr. Ainslie instituted some experiments in the use of a brush drag at Summers, Ark., and Mr. Phillips carried out similar experiments at Hobart, Okla., but in neither case was
. Circular. Insect pests; Insect pests. 19 EXPERI3IENTS IN DESTROYIXG GREEN BUGS OVER SMALL AREAS. On leaving Washington both Mr. Ainslie and Mr. Phillips were instructed to place themselves in the position of a farmer whose grain fields were beginning to show the j^resence of the " green bug"' by small deadening spots, and to leave nothing undone or untried that Avould seem to afford relief and save the crop. Mr. Ainslie instituted some experiments in the use of a brush drag at Summers, Ark., and Mr. Phillips carried out similar experiments at Hobart, Okla., but in neither case was the measure sufficiently effective to warrant its recommendation. Experiments in rolling infested fields Avith heav}^ farm rollers were conducted by both of these agents, but it was invariably found that this measure was only effective on smooth lands. Allien the seeding is done with a grain drill, as most of it is, the plants grow up in the bottoms of slight furrows, and the roller comes in contact with the ridges only, leaving tlie young pl,ants and their inhabitants almost wholly untouched. This measure, also, is therefore of little practical value. Mr. Ainslie tried dusting with lime and also with sulphur, but both substances were ineffective. Both Mr. Ainslie and Mr. Phil- lips carried out a series of care- ful experiments in sprajdng with kerosene emulsion and with whale-oil soapsuds. From these experiments it was found possible to destroy 50 per cent or more of the " green bugs " at an expense of about $4 per acre. This treatment, of course, is intended for use only where, as seems to be more usual to the southward, the outbreaks of the pest originate in spots in the fields. Mr. Ainslie also tried covering some of these spots with straw and burning it, thus destroying, of course, both grain and " green ; This, too, gave encouraging results, and probably would prove effect- ive if applied earlier in the season, when the pest first begins to appear
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