. Circular. Insects. 19 EXPERIMENTS IX DESTROYING GREEN BUGS OVER SMALL AREAS. On leaving Washington both Mr. Ainslie and Mr. Phillips were nstructecl to place themselves in the position of a farmer whose grain ielcls were beginning to show the presence of the " green bug " by mall deadening spots, and to leave nothing undone or untried that lould seem to afford relief and save the crop. Mr. Ainslie instituted some experiments in the use of a brush drag it Summers, Ark., and Mr. Phillips carried out similar experiments it Hobart, Okla., but in neither case was the measure sufficientl
. Circular. Insects. 19 EXPERIMENTS IX DESTROYING GREEN BUGS OVER SMALL AREAS. On leaving Washington both Mr. Ainslie and Mr. Phillips were nstructecl to place themselves in the position of a farmer whose grain ielcls were beginning to show the presence of the " green bug " by mall deadening spots, and to leave nothing undone or untried that lould seem to afford relief and save the crop. Mr. Ainslie instituted some experiments in the use of a brush drag it Summers, Ark., and Mr. Phillips carried out similar experiments it Hobart, Okla., but in neither case was the measure sufficiently ?ffective to warrant its recommendation. Experiments in rolling infested fields with heavy farm rollers were conducted by both of ^these agents, but it was invariably found that this measure was only affective on smooth lands. When 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 the young plants 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 spraying 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 ; j This, too, gave encouraging results, and probably would prove effect- jl ive if applied earlier in the season, when the pest first begins to ( appear and the inf
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