26 Farmers' Bulletin 1126.

As in tho caso of red-spot, tho sorglmms furnish a source of infection for tho kernel smut. This disease of the seed is not of any groat importance in tho production of Sudan grass for hay ami pasture.

Kernel smut can be controlled very offoctively by treating the seed with formalin.1 Ono pound of full-strength formalin is mixed with 30 gallons of water. The sacks of seed are immersed for ono hour in this solution, which should be stirred occasionally. Then the sacks are taken out and drained, after which the seed is spread upon a clean floor or canvas to dry. When dry the seed can be sown, but card must be used to see that, after the treatment, it does not come in contact with any smut-infoctod sacks. Such seed treatment is profitable only for planting fields intended for seed production.

INSECT ENEMIES OF SUDAN GRASS.2 GRASSHOPPERS. In parts of tho United States where grasshoppers are abundant they do considerable damage to Sudan grass. These grasshoppers are Chiefly native species which hatch out in the vicinity. The cultivation of fields and fence rows late in the fall or in early winter destroys largo quantities of the eggs and helps to keep those pests in check. Tho most oifective method of controlling the grasshopper is by poisoned bran mash. This poisoned mash is made up as follows: Brau pounds.. 25 Paris greon or white areenic do 1 Molaases quarts.. 2 Oranges or lemons number.. 3 Water gallons.. 3i The Paris greon and bran are thoroughly mixed dry in some receptacle, such as a washtub. The juice of the oranges or lemons is squeezed into tho water, the pulp and peeling chopped fine and added, after which some strong-smelling molasses is dissolved in tho water, and the poisoned bran is moistened with this solution.

Karly in the morning is the best time to scatter this damp mash about fields where tho grasshoppers are troublesome. The quantity described in tho foregoing forimda is sufliciont for 4 or 5 acres.

CHINCH BUG.

The chinch bug, though not as frequently troublesome as the grasshopper, does considerable damage when it is abundant. A field of Sudan grass can be protected from a threatened invasion of chinch hugs by means of a deep furrow plowed around tho edges of the field, i . icriuin, K. M.niHl rmlii'iKcr, ll.J.e Tho smuts of sorghum. U.S. Dept. Agr., Bur. Plant Indus, (ir. \9. p. 1910, a This dismission of insects «us prqpond with I lio advice and cooperation of W. B. Walton, entomologist in Mi iv.T, MTMl nod fotag* insect hivcstigiiUons, Bureau of Entomology, United States Department of Ai:rii ulture.