File:The publications of the Pennsylvania chestnut tree blight commission, 1911-1913 (1915) (14762653291).jpg

Identifier: publicationsofpe00penn (find matches)
Title: The publications of the Pennsylvania chestnut tree blight commission, 1911-1913
Year: 1915 (1910s)
Authors: Pennsylvania. Chestnut tree blight commission
Subjects: Chestnut blight Chestnut blight
Publisher: Harrisburg : W. S. Ray, state printer
Contributing Library: Penn State University
Digitizing Sponsor: LYRASIS Members and Sloan Foundation

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ne is the injured one,showing the spot, in the edge of the screen. This one is injuredhere. (Indicating). If the nuts are eaten immediately or used,they are scarcelj^ injured; but if they are allowed to stand for atime spores of various moulds get into them and the nuts soon rotentirely. In this case this nut shown has cracked open, andis full of black spores. I am not able to identify all the moulds;some of them resemble very much the ordinary bread mould. Insect traps were made by Mr. Sober in 1910 and placedthroughout the grove, and thousands of moths, many of thembelonging to the same genus, the Holcocera^ were caught in thesetraps. Lanterns were suspended from the trees beneath whichwere these tin arrangements, and below was a pan of water onwhich was placed a little oil. That arrangement caught thou-sands of moths. That is one method of controlling the enemy. The grove is full of birds. There are many blue birds, andnest boxes have been put up. I do not know whether it is a good
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97 plan to eiic<mrai!,e tlie birds or not. Tiu; woodpeekeis are there,feeding on insects and the beetle larvae nnder the bark. It maybe a good chance to spread the chestnnt blight, Ijnt tliey help tocontrol the motlis. Tliey feed on Imndreds of them. You seethem hunting everywliere. The insect-having birds are there.You find the vireos, the red-eyed vireo especially; you find theAmerican redstart; you find Avarblers. They are there lookingfor the moths and weevils. Chickens were placed in the grove.They search for grubs and everything they can find and, ofcourse, in doing that they destroy many of the chestnut weevilsand the grubs of other worms. This view shows the chestnut weevil, the Belaninus, on theburr. These can be controlled by removing the burrs imme-diately, before they have time to come out on the nut. This view shows them at work. Several females were placedon this burr, which I have cut in two. This view shows the long, beaklike proboscis. There isanother one, and anot

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