. Fig. 144.—Helmiiitii.^sportuin tincuitm. i, portion of a maize leaf with fungus ; 2, a cluster of conidiophores, two bearing conidia, highly mag. brownish spots, septate, 150-180x6-9 /x; pale olive, apex almost colourless, often nodulose; conidia spindle-shaped, ends acute, 5-8-septate, pale olive, 80-140 x 20-26 /x. A difficult disease to check, perhaps burning the stubble after corn has been gathered, if practicable, would to a certain e.\tent prevent future infection. Rotation of crops, however, would be the most certain method, and as maize impoverishes the soil to a great extent, this c


. Fig. 144.—Helmiiitii.^sportuin tincuitm. i, portion of a maize leaf with fungus ; 2, a cluster of conidiophores, two bearing conidia, highly mag. brownish spots, septate, 150-180x6-9 /x; pale olive, apex almost colourless, often nodulose; conidia spindle-shaped, ends acute, 5-8-septate, pale olive, 80-140 x 20-26 /x. A difficult disease to check, perhaps burning the stubble after corn has been gathered, if practicable, would to a certain e.\tent prevent future infection. Rotation of crops, however, would be the most certain method, and as maize impoverishes the soil to a great extent, this course is advisable. Bancroft, Proc. Roy. Soc. Queefisland, 8, p. 108. Hehninthosporitim teres (Sacc.) sometimes proves destruc- tive to the barley crop, causing the leaves to shrivel and die. It forms rather large olive blotches on the leaves.


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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910