Repository: UIHistories Project: War Publications - WWI Compilation 1923 - Article 29 [PAGE 3]

EXTRACTED TEXT FROM PAGE:

ARJ1ERKY

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;•}. That, where there is still found a barberry hush, the bUu-k S UfM.lJ cause

the w li^at.

We cannot deny that here in Denmark we have- as definite proofs as we can obtain about the hand-in-liand elimination of the barberry bush and the black rust." There are two species of barberry commonly planted in Illinois: (1) The tall, common, or European barberry (Herbert's vulgaris): (2) The Japanese barberry (Btrbrris Thunhergii). There is a purple-leaved variety of the tall barberry, known as Berheris vulgaris purpura^ whieh of late years has been planted more extensively than the green-leaved form. The tall barberry is distinguished from the Japanese by the following characteristics:

JAPANESE BARBERRY

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COMMON (EUROPEAN) BARBERRY

{Docs not harbor rust) l. K.lge of leaf smooth Twigs of lost year reddish brown Berries Bingle or. rarely, in groui a of 2 or 3 4. Thorns usually single

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(Harbors rtist) Edge of leaf faw-toothod Twigs of last year dun or grey Berries in a cluster on one main stem Thorns usually three-pointed

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FIG. 2.—LEAP OF THE COMMON BARBERRY AND OF THE JAPANESE

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*'io. i # —BLACK ;M B U S T ON WHEAT The elongated black Hpotw are the P^es in m a i f t i . (At I eman)

A—Common barberry leaf infected: r. Rust spoi orange red in color' Note law-toothed edge of leaf. B—Japanete barberry leaf. Note not harboi rust aped