File:Control of the Japanese beetle on fruit and shade trees (1932) (20504222640).jpg

Title: Control of the Japanese beetle on fruit and shade trees
Identifier: controlofjapanes237vanl (find matches)
Year: 1932 (1930s)
Authors: Van Leeuwen, E. R
Subjects: Japanese beetle Control; Fruit Diseases and pests; Trees Diseases and pests
Publisher: Washington, D. C. : U. S. Dept. of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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CONTROL OF THE JAPANESE BEETLE ON FRUIT AND SHADE TREES 11 SMALL FRUITS On account of the objection to spray residue appearing on small fruits such as the raspberry and blackberry, protective sprays can not be applied until the fruit has been harvested. Recent experi- ments with certain varieties that produce two crops annually have shown that sprays can be applied as soon as the first crop has been picked without any injury to the second crop resulting from spray deposits. One application of lead oleate coated lead arsenate, 9 pounds to 100 gallons of water, after the crop has been harvested prevents further injury to the foliage and developing fruits. RECOMMENDATIONS FOR CONTROL IN CITIES AND TOWNS SHADE TREES Certain shade trees (fig. 8) and ornamental plants which are favorite food plants of the beetle are grown extensively in the towns and cities in the heavily in- f e s t e d zone. The protection of these plants from injury has presented a dif- ficult problem because few property owners are equipped to apply the sprays properly. Power spraying out- fits are necessary to protect a tree over 10 feet in height. Property owners usu- ally have only a few trees or ornamental plants to protect and are in no position to afford equipment of this nature. During recent years such situations have been met by commu- nities undertaking or sponsoring a shade- tree-spraying cam- paign. Other com- munities and indivi- duals have employed commercial spray companies to do the work. These arrangements have worked out quite satisfactorily. Details regarding the organization of the community spray program can be obtained from the local county agent. The following shade trees should be spra)Ted with lead oleate coated lead arsenate. 9 pounds to 100 gallons of water, or, if small
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Figure 8.—Elm tree injured by Japanese beetles. Note how the upper and outer portions of the tree have been defoliated

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