BOOKS AND BULLETINS. 



59 



late hold out but for a short time. The late varieties 

 usually cease bearing at about the same time as the 

 medium or second early, although commencing a week 

 or ten days later. In general, the medium or second 

 early sorts are those having a long season. Although 

 not all that are found in this class are highly fruitful, it 

 is true that the most fruitful come within it." 



"One thing is clear, e., the most prolific varieties 

 are found among those having imperfect flowers. Nearly 

 all of those named in this class are very prolific, the 

 Ohio being the only exception. Among those having 

 perfect flowers none are found that are extremely pro- 

 lific, the Wilson and Capt. Jack being 

 Sex and possible exceptions under favorable 



Fruitfulness. conditions. Taking averages for the 

 two classes we find that the varieties 

 having imperfect flowers stand thirty-eight per cent, 

 higher than those having perfect flowers. If we take 

 four of the most prolific in each class, the imperfect 

 flowered sorts stand thirty per cent, higher than those 

 having perfect flowers. There can be no doubt that the 

 production of pollen is an exhaustive process, hence the 

 varieties having perfect flowers are at a disadvantage. 

 No doubt some of the perfect flowered sorts are very 

 nearly equal to any in fruitfulness, and under certain 

 circumstances, may be fully equal, but the chances are 

 against them when unfavorable conditions occur. Given 

 two varieties of equal vigor and productiveness, one 

 having perfect and the other imperfect flowers, the extra 

 tax of pollen bearing on one will so weaken the plants as 

 to render them more subject to the evil effects of fungi, 

 insects, dry weather, frost, etc., than those that produce 

 no pollen. 



" There can hardly be a question that the best market 

 varieties at the present time have imperfect flowers. 

 This is not alone because of the greater fruitfulness of 

 varieties of this class than those having perfect flowers, 

 but because of more general reliability, i. c., they more 

 uniformly produce good crops. In many respects it may 

 be desirable to have varieties with perfect flowers only, 

 but it is probable that future development will be along 

 the line of still greater specialization. The highest de- 

 velopment of fruit-bearing qualities in one class, and of 

 pollen bearing in the other, gives promise of greater re- 

 ward than to combine the two functions in one variety." 



" The following varieties have been thoroughly tested 

 and are suited to the wants of those who grow berries 

 for market : Bubach, Eureka, Haverland, Crescent, 

 Warfield. Where large berries are desired rather than 

 quantity, the following can be recommended for home 

 use or for market : Cumberland. Crawford, Gandy, 



Louise, Lida, Miami, Pearl. The 

 Varieties of new varieties that seem to be most 



Strawberries. promising are Enhance, Farnsworth, 



Ivanhoe, Middlefield, Muskingum, 

 Michel's Early, Parker Earle, Shuster's Gem, Waldron. 

 Those that have good points, but are doubtful and need 

 further testing are Cloud, Lady Rusk, Stay man's No. i. 



Daisy. The following will no doubt be dropped soon : 

 Hoffman, Jessie, Logan, Pineapple." 



' ' The black cap varieties that are now considered the 

 most reliable are Gregg, Hilborn, Ohio, Palmer. 



"The red sorts that succeed best generally are Tur- 

 ner and Shaffer ; the best for shipping 

 are Brandywine and Marlboro. Musk- Varieties of 

 ingum, Royal Church and Thompson's Raspberries. 

 Early Prolific are the most promising 

 of the new varieties." 



Bulletin No. 8, Vol. Ill, Ohio Experiment Sta- 

 tion. Plum CiirciiHo Experiiiu-nts . Remedies for Siriped 

 Cucumber Beetle. The Rhubarb Curiulio. 'Ike Clover 

 Stem Borer. Potato Blight Experiments. By Clarence 

 M. Weed. Pp. lb. Illustrated. Professor Weed made 

 experiments last season with Paris green as a remedy 

 for curculio upon plums under commercial conditions. 

 An orchard of goo trees, in a large fruit region, was 

 sprayed May 8, 15, 26 and June 2, 



with I lb. poison to 200 gals, water. Spraying for 



The spray saved more plums than Curculio. 



were saved by the ordinary jarring 

 process. ' ' So far as one experiment can be relied upon, 

 it indicates that this method is as efficient as jarring, 

 while it is vastly cheaper and easier of application." 



Studies of remedies for the striped cucumber beetle 

 have also been continued, and Professor Weed still be- 

 lieves that covering the plants with cheese cloth or thin 

 plant-bed cloth is "practical and effi- 

 cient." From these experiments it ap- Cucumber 

 pears that the most promising insecticide Beetle, 

 for preventing the ravages of the beetle 

 is tobacco powder applied in liberal quantities to the 

 hills. 



The life history of the rhubarb beetle, which was 

 briefly described last year, has been worked out. The 

 pest breeds upon the early dock. 



"From the discovery of the breed- Rhubarb 

 ing habits of this rhubarb curculio in Beetle, 

 dock, it seems evident that the best way 

 of preventing its injuries will be to destroy, early in 

 summer, the plants in which it develops. If the dock 

 plants are pulled up, roots and all, say late in June, be- 

 fore they have gone to seed, and burned, a great many 

 of the insects will be destroyed." 



Professor Weed has also repeated his trials of Bor- 

 deaux mixture as a remedy for potato blight, and he 

 again finds good results to follow its use. Ammoniacal 

 carbonate of copper was some what bene- 

 ficial, but far less than Bordeaux mix- Potato 

 ture. It is not certain what this blight Blight, 

 is with which the author experimented. 

 It is supposed to be the bacterial blight which has lately 

 come to light and not the genuine potato rot. 



Bulletin No. 66, Michigan Experiment Station. 

 The Plum Curculio. By A. J. Cook. Pp. 8. Illustrated. 

 Professor Cook now thinks that the arsenites are not re- 

 liable remedies for curculio, although his previous ex- 



