APPENDIX. 181 



to the ground ; large numbers have been destroyed by jarring the 

 vines after first laying down strips of cloth. covered with coal tar 

 or similar material that will catch them. Perhaps the best rem- 

 edy is that practiced by Mi-s. S. Erwin, of Minnesota, which con- 

 sists in making two frames four feet square out of common lath, 

 and covering them with cloth which is coated with fresh coal tar. 

 Two men are required to use them, in doing which tliey place the 

 frames opposite one another on each side of the rows, and as near 

 as practicable at the bottom, at the same time gently jarring the 

 vines by striki<ng downwards with a few light branches on each 

 side. In this way large numbers of the insects can be caught, and 

 if this method is persistently used this pest may be kept in check. 



The Rose Chafer or Rose Bug eats roses, the flowei's of 

 the grapes, and, when very abundant, many other garden plants. 

 It is a beetle with long, hairy legs, and rather slow in its move- 

 ments. It is especially injurious by reason of its eating the flowers 

 of grapes. Where they are very abundant insecticides are too 

 slow in acting to do much good, and all remedies fail. Where not 

 unusually abundant they may be kept in check by hand-picking 

 Covering the flowers with bags has also been resorted to with ex- 

 cellent results. Bordeaux mixture seems to be distasteful to them, 

 and spraying with this material will often largely prevent their 

 ravages as well as check fungus diseases. 



Additional Varieties.— Beta is a grape that originated with 

 L.' Suelter, of Carver, Minn. It is like the Janesville, in being a 

 probable hybrid with our native V. riparia. It is an exceedingly 

 hardy, productive purple grape, quite acid and inferior for dessert 

 use, but very valuable for cooking. Desirable for severe situations. 



Wild Grapes. — In some portions of Northern Minnesota and 

 the Dakotas it is very difficult to do much with the cultivated var- 

 ieties of grapes. In such places it is well worth while to grow 

 vines from cuttings of fruitful native plants. These can be found 

 along the rivers throughout this whole section. They make a good 

 porch or trellis cover, and will produce much fruit. In selecting 

 vines from which to propagate, it is very important to select fruit- 

 ing plants, as many of the wild vines have staminate flowers only, 

 and while they may make an enormous growth of vine are abso- 

 lutely unproductive of fruit. 



Bordeaux Mixture. — Further experience with Bordeaux 

 mixture seems to show that the following directions for making 

 it are most certain to give best results : In a barrel, or other suit- 

 able vessel, place 25 gallons of water. Weigh out six pounds of 

 sulphate of copper (blue stone) , and tie the same in a coarse gunny 

 sack and suspend it just beneath the surface of the water. By 

 tying the bag on a stick laid across the barrel no further attention 

 will be required. In another vessel slack four pounds of lime, 

 using care, in order to obtain a smooth paste free from small 

 lumps. To accomplish this it is best to put the lime in an ordinary 



